Rockwell Automation Allen-Bradley CENTERLINE 2100 Installation Instructions Manual
Reklama
Reklama
Installation Instructions
CENTERLINE 2100 Low Voltage Motor Control
Centers
Catalog Number 2100
Important User Information
Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety
Guidelines for the Application, Installation and Maintenance of Solid State Controls (publication SGI-1.1
available from your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/ ) describes some important differences between solid-state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid-state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
WARNING: Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence
SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.
BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.
IMPORTANT Identifies information that is critical for successful application and understanding of the product.
Allen-Bradley, Rockwell Automation, CENTERLINE, CENTERLINE 2100, ArcShield, and TechConnect are trademarks of Rockwell Automation, Inc.
Trademarks not belonging to Rockwell Automation are property of their respective companies.
New and Updated
Information
Summary of Changes
This manual contains new and updated information. Changes throughout this revision are marked by change bars, as shown to the right of this paragraph.
This table contains the changes made to this revision.
Topic
Added information about ArcShield rating
Added illustrated checklist for ArcShield components
Page
Throughout
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 3
Summary of Changes
Notes:
4 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Table of Contents
General Information
Installation Procedures
Installing Conduit and Cable
Preface
Purchased Components and Additional Instruction Sheets . . . . . . . . . . . 8
Chapter 1
Series Number and Series ID as Manufactured in the United States. . . 14
Chapter 2
Joining and Splicing New MCCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Joining and Splicing Existing MCCs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Joining and Splicing MCCs with ArcShield. . . . . . . . . . . . . . . . . . . . . . . . . 38
Joining and Splicing NEMA Type 12 MCCs . . . . . . . . . . . . . . . . . . . . . . . 38
Joining and Splicing NEMA Type 3R and Type 4 MCCs . . . . . . . . . . . . 38
Chapter 3
Installing and Removing Plug-in
Units
Chapter 4
Remove a Plug-in Unit with a Vertical Operating Handle
from a Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Remove a Plug-in Unit with a Horizontal Operating Handle
from a Section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 5
6
Table of Contents
Arc Flash Protection Marking as Required by the National
Electrical Code
Chapter 5
Flash Protection Marking Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Operator Handle and Unit
Interlock
Chapter 6
Defeating the Unit Door Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Final Checklist Before
Energizing
Energizing the Equipment
Chapter 7
Perform the Pre-energizing Check Procedure . . . . . . . . . . . . . . . . . . . . . . . 72
ArcShield Components Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Required Minimum Electrical Spacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Chapter 8
Maintenance
Maintenance After Fault
Condition
Renewal Parts
Parts Illustrations
Chapter 9
Disconnect the Switch and Contact Lubrication . . . . . . . . . . . . . . . . . . . . 91
Use Thermal Infrared or Other Temperature Measurement
Techniques for Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Chapter 10
Maintain the MCC After a Fault Condition. . . . . . . . . . . . . . . . . . . . . . . . 95
Chapter 11
Chapter 12
Typical Construction of a Unit with a Vertical Operating Handle . . . 100
Typical Construction of a Half Space Factor Unit with a Horizontal
Operating Handle and Door Mounted Pilot Devices . . . . . . . . . . . . . . . 101
Typical Construction of a Unit with a Horizontal Operating
Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Index
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Preface
About this Publication
Who Should Use This
Manual
This manual provides detailed installation instructions for installing, using the operator handle, energizing, and maintaining your CENTERLINE 2100 Motor
Control Center.
This manual is intended for engineers or technicians directly involved in the installation, connection, energizing, and maintenance of the
CENTERLINE 2100 Motor Control Center.
If you do not have a basic understanding of the CENTERLINE 2100 Motor
Control Center, contact your local Rockwell Automation sales representative for information on available training courses.
Additional Resources
The following publications supplement this manual. For more information and further reference, please use these available publications.
Publication Name
Arc-Flash Resistant Low Voltage Motor Control Center Designs White
Paper
Power Factor Correction Capacitors for Bulletin 2100 MCC Starter Units
Application Techniques
CENTERLINE 2100 Motor Control Centers Joining and Splicing Vertical
Sections Instructions
CENTERLINE 2100 Motor Control Centers (MCC) Units with Vertical
Operating Handles Installation Instructions
Publication No.
2100-AP003
2100-AT001
2100-IN010
2100-IN014
CENTERLINE Motor Control Centers NEMA Type 12 Sealing Instructions 2100-IN037
Receiving, Handling, and Storing Motor Control Centers Instructions 2100-IN040
2100-TD001 CENTERLINE 2100 MCC Instantaneous Trip Motor Circuit Protectors
(MCP) in Combination NEMA Starter, Soft Starter (SMC), and Variable
Frequency AC Drive Units Technical Data
CENTERLINE 2100 MCC Inverse Time Circuit Breakers in Combination
NEMA Starter, Soft Starter (SMC), and Variable Frequency AC Drive
Units Technical Data
2100-TD002
CENTERLINE Motor Control Centers Power Fuses Product Data
DeviceNet Motor Control Centers (MCC) Technical Data
CENTERLINE 2100 Motor Control Center End Closing Plates Installation
Instructions
CENTERLINE 2100 Motor Control Center (MCC) Units with Horizontal
Operating Handles Installation Instructions
2100-TD003
2100-TD019
2100-IN069
2100-IN060
CENTERLINE Motor Control Centers Mains and Incoming Lines
Dimensions Reference
CENTERLINE Motor Control Centers Mains and Incoming Lines
Dimensions Reference Document Update
CENTERLINE Motor Control Centers Installing a Pull Box on a Bulletin
2100 Vertical Section Installation Instructions
Safety Guidelines for the Application, Installation, and Maintenance of
Solid-state Control Installation Instructions
2100-4.2
2100-4.2DU1
2100-5.28
SGI-1.1
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 7
Preface
You can view or download publications at http://www.rockwellautomation.com/literature . To order paper copies of technical documents, contact your local Rockwell Automation distributor or sales representative.
The documents in the following table are referenced in this document and can be obtained from their respective organizations.
Resource Website
National Electrical Manufacturer’s Association (NEMA)
• NEMA ICS 1-2000 Industrial Control and Systems: General
Requirements
• NEMA ICS 2.3-1995, Instructions for Handling, Operation and
Maintenance of Motor Control Centers Rated Not More Than 600V www.nema.org
www.nfpa.org
National Fire Protection Association (NFPA)
• NFPA 70 - National Electrical Code
• NFPA 70A - Recommended Practice for Electrical Equipment
Maintenance
• NFPA 70E - Standard for Electrical Safety in the Workplace
Institute of Electrical and Electronic Engineers (IEEE)
IEEE standard C37.20.7 - IEEE Guide for Testing Metal-Enclosed
Switchgear Rated Up to 38 kV for Internal Arcing Faults www.ieee.org
Purchased Components and
Additional Instruction
Sheets
When equipment such as transformers, metering, programmable controllers, or drives are supplied with the motor control center (MCC), specific manuals and data sheets are also supplied. These documents should be read and understood before installing and operating the MCC. Refer to the unit locations of these devices for their manuals or data sheets.
8 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
1
General Information
General Description
Allen-Bradley CENTERLINE Motor Control Centers (MCCs) consist of one or more vertical sections containing electromagnetic or solid state control devices that are prewired and tested within modular (plug-in) or frame mounted (hardwired) units.
CENTERLINE MCCs are designed in standard widths of 20 in. (508 mm), 25 in. (635 mm), 30 in. (762 mm), 35 in. (789 mm), and 40 in. (1016 mm). The standard front-mounted depths of an MCC are 15 in. (381 mm) and 20 in.
(508 mm), in addition back-to-back mounted depths of 30 in. (762 mm) and
40 in. (1016 mm) are also offered. The standard height of an MCC is 90 in.
(2286 mm). A 70.5 in. (1791 mm) high section is also available. All MCC sections are supplied with top and bottom horizontal wireways. Sections that are designed to accommodate plug-in units include a vertical wireway. Each 90 in.
(2286 mm) vertical section can accommodate up to 6.0 space factors or 78 in.
(1981 mm) for units.
Units (buckets) are designed in increments of 0.5 space factors. Each 0.5 space factor is approximately 6.5 in. (165.1 mm) high. Units are designed as either removable (plug-in) or frame-mounted (non-plug-in).
Individual units house a wide variety of power and logic devices. Plug-in units are mounted on unit support pans within the section. Stab assemblies on the back of the unit plug onto the vertical bus. A mechanical interlock prevents the unit door from being opened when the disconnect is not in the OFF position. An additional mechanical interlock prevents the unit from being plugged-in or unplugged when the disconnect is not in the OFF position.
Line power is distributed throughout the MCC via an isolated bus work structure. The main horizontal bus is in the center of each section. Standard, center-fed, 300 A rated vertical bus supplies power to the individual units above and below the horizontal bus for an effective 600 A capacity, allowing virtually unrestricted unit arrangement. An optional 600 A vertical bus provides 1200 A effective rating.
The CENTERLINE MCC is also available with an ArcShield rating. The
ArcShield rating includes arc-resistant features that are intended to help provide enhanced protection to you during internal arcing faults (when compared to
MCCs that are only designed to meet UL 845 requirements). Arcing faults can be caused, for example, by accidental touching, closing into faulted lines, or loose connections. Depending on the application, MCCs with the ArcShield rating can provide up to Type 2 accessibility per IEEE standard C37.20.7, which helps protect you when you are at the front, sides, and rear of the enclosure in the unlikely event of an arcing fault.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 9
Chapter 1 General Information
A label on the MCC with the ArcShield rating provides information in regard to the accessibility level and arc fault ratings.
For more information about accessibility levels, performance, and testing requirements, refer to IEEE standard C37.20.7, IEEE Guide for Testing Metal-
Enclosed Switchgear Rated up to 38 kV for Internal Arcing Faults.
MCCs with the ArcShield rating provide a reinforced structure and arccontainment latches on all doors. To help protect you during an arc-fault, arccontainment latches, when closed and latched properly, allow pressure relief and help keep the doors from unlatching or detaching from the structure.
Nameplate Data
Catalog Number/Serial Number
UL and cUL Certification Marking
Section Number
Each MCC section has a nameplate on the enclosure or vertical wireway door.
The nameplate includes:
• catalog number/serial number.
• series letter of section.
• bus bar voltage and current rating.
• section number.
• UL and cUL certification marking.
• UL registration number.
• enclosure type.
Figure 1 - Section Nameplate
Series Letter of Section
Bus Bar Voltage and Current Rating
UL Registration Number
Enclosure Type
10 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Catalog Number / Serial Number
General Information Chapter 1
Each plug-in and frame mounted unit also has an identification label. The unit label is on the interior of the bottom plate of plug-in units or on the interior right-hand side plate of the frame mounted units. The unit label for each plug-in or frame mounted unit includes:
• catalog number/serial number.
• series letter of the unit.
• voltage rating.
• unit location.
•
UL and cUL certification marking.
• device type and size.
Figure 2 - Unit Label
Series Letter of Unit
Unit Location cUL Certification Marking Device Type and Size
Voltage Rating
The catalog number or serial number and series letter are required to properly identify the equipment to sales or factory personnel.
MCC Sequence Numbering
CENTERLINE MCCs are designed so functionality is not affected by the section installation order, for example, vertical section-numbering sequence order.
All MCC sections carry a serial plate that identifies vertical section sequence numbering. For example, MCC section 1 of 1, 1 of 5, and so on.
Figure 3 - Section Nameplate
Identifies Vertical Section
Sequence Numbering
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 11
Chapter 1 General Information
UL/CSA Marking
Sections are numbered to match factory-supplied MCC elevation drawings.
Numbering each section helps installers and users easily identify MCCs, sections, and units. If there are questions about section numbering during field installation, inspection, or operation, the following information can provide guidance on equipment acceptability, listing, and certification.
CENTERLINE MCC sections can be installed or added as follows:
• In non-sequential order
• Addition of a single section (add-on section)
• Addition of multiple sections (add-on lineup of sections)
• Addition of single section or multiple section between MCC sections
If sections are added to an existing lineup and not installed in sequential order, the installation should not be considered a misapplication or in conflict with
Underwriter Laboratories (UL) listing and Canadian Standards Association
(CSA) certification.
The paramount criteria for additions of sections to existing MCCs is matching the horizontal bus electrical and ingress protection (enclosure type) ratings for the total MCC line up. For example, the voltage, current rating, short circuit withstand, and NEMA enclosure type (IP rating) for all sections must match.
Non-sequential numbering may not create a functional or listing/certification issue. However, MCCs should be installed in sequential order. Installing MCCs in sequential order helps ensure proper installation and ensures that factorysupplied documentation matches the equipment.
You can rearrange MCC sections. However, if a section that uses a right-hand side sheet with integral, internal mounting flanges is on the outside of a lineup, an additional closing kit plate is required. Refer to CENTERLINE 2100 Motor
Control Center End Closing Plates Installation Instructions, publication 2100-IN069 . MCCs that contain arc resistant features cannot use a section with integral mounting flanges on the outside of a lineup.
CENTERLINE MCCs are listed by Underwriter’s Laboratories, Inc. (UL),
Standard for Safety UL 845, and certified by the Canadian Standards Associate
(CSA), Standard C22-2, No. 14.
Due to standards harmonization, a MCC may also carry the cUL designation.
The cUL designation is comparable to CSA certification.
Vertical sections and units are labeled independently. It is possible to have combinations of labeled and non-labeled sections and units in the same MCC.
12 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
General Information Chapter 1
Vertical sections and structure options that are UL listed and CSA/cUL certified are marked accordingly. All components in a UL or CSA listed section must be
UL listed and cUL/CSA certified. The UL and/or CSA/cUL designation is an integral part of the section nameplate as shown on page 11 .
Units and unit options that are UL listed and CSA/cUL certified are marked accordingly. All options and components in a UL and/or cUL/CSA listed unit must be UL listed or recognized and/or cUL/CSA certified. The UL designation is on the interior of the bottom plate of plug-in units or on the interior right-hand side plate of frame mounted units.
Figure 4 - UL Label Designation for Units
Short-circuit Rating Label
MCC vertical sections that are UL listed and/or CSA/cUL certified will carry a short-circuit rating label. The short-circuit rating label for a vertical section is on the inside of the vertical wireway door of standard sections or on the interior right-hand side plate of a section that contains a unit that occupies the full section and does not contain a vertical wireway.
Figure 5 - Short Circuit Label for Sections
MCC units that are UL listed and/or CSA/cUL certified will carry a shortcircuit rating label on the bottom plate of plug-in units or on interior right-hand side plate of frame mounted units.
Figure 6 - Short Circuit Label for Units
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 13
Chapter 1 General Information
ArcShield Rating Labels
MCC units that have the arc resistant rating will carry a rating label on the vertical wireway door. This label serves as the arc resistant nameplate and provides information on the arc resistant rating. There will also be labels on other parts that need to be in place before operating an arc resistant MCC.
Figure 7 - ArcShield Labels
100 ms Arc Duration
ARC RESISTANT EQUIPMENT
PER IEEE C37.20.7-2007
ACCESSIBILITY:
TYPE 2
ARC SHORT CIRCUIT CURRENT: ≤
65 kA
ARC DURATION: ≤
100 ms
OPERATIONAL VOLTAGE
:
≤
480 V
WARNING
ARC FLASH HAZARD
DOORS AND COVERS MUST BE PROPERLY
CLOSED, LATCHED, AND SECURED.
EQUIPMENT MUST BE INSTALLED PER
MANUFACTURER’S INSTRUCTIONS. REFER TO
PUBLICATION 2100-IN012.
ONLY INSTALL ArcShield 100ms / 480V / 65kA
RATED UNITS IN THIS STRUCTURE.
EQUIPMENT WILL NOT FUNCTION AS
ARC RESISTANT IF ABOVE GUIDLINES
ARE NOT FOLLOWED.
FAILURE TO FOLLOW THESE GUIDELINES COULD
RESULT IN SEVERE INJURY OR DEATH.
41006-402-01 (1)
Device Limited Rating
ARC RESISTANT EQUIPMENT
PER IEEE C37.20.7 2007
ACCESSIBILITY : TYPE 2
ARC SHORT CIRCUIT CURRENT :
≤
ARC DURATION : DEVICE LIMITED
65 kA
PROTECTIVE DEVICE :
UL LISTED FUSES
CLASS L – FERRAZ-SHAWMUT A4BQ
≤
1200 A
CLASS R – ANY FUSE ≤ 600 A
CLASS J – ANY FUSE
≤
600 A
UL LISTED MOLDED CASE CIRCUIT BREAKERS
ALLEN-BRADLEY – BULLETIN 140U, FRAME I, JD, or K
CUTLER-HAMMER – SERIES C, FRAME F, J, K, L, M, or N
WARNING
ARC FLASH HAZARD
THE ARC CONTAINMENT CAPABILITY OF THE MOTOR
CONTROL CENTER IS DEPENDENT UPON THE MAIN
PROTECTIVE DEVICE. PROTECT ONLY WITH UL LISTED
PROTECTIVE DEVICE SPECIFIED ABOVE.
DOORS AND COVERS MUST BE PROPERLY CLOSED,
LATCHED, AND SECURED. EQUIPMENT MUST BE INSTALLED
PER MANUFACTURER’S INSTRUCTIONS.
REFER TO PUBLICATION 2100-IN012.
EQUIPMENT WILL NOT FUNCTION AS ARC RESISTANT IF
ABOVE GUIDELINES ARE NOT FOLLOWED.
FAILURE TO FOLLOW THESE GUIDELINES COULD RESULT IN
SEVERE INJURY OR DEATH.
41006-401-01 (1)
Series Number and Series
ID as Manufactured in the
United States
Table 1 - Sections
ATTENTION:
4 before adding new sections or
units to an existing CENTERLINE MCC.
K
L
M
N
H
J
Series
Letter
A
(1)
B
(1)
C
(1)
Scope
—
All
All
D
(1)
All
E
(1)
All
Description of Change
Original design
Changed terminal blocks
Elimination of external mounting channels
Reverse fed 2192 and 2193
F
(1)
G
(1)
G
(1)
All
42K
65K
Modified top horizontal wireway pan to accept units with handle interlock in topmost space factor
42 k bracing-incorporates new bus support and cover
65 k bracing-incorporates new bus support and cover
All
All
New hinge design
Changed handle, operating mechanism, and circuit breaker to Cutler-Hammer series C, 150 A, 250 A, 400 A frame
All
All
All
All
Changed to new unit grounding system
Changed to new 600...1200 A circuit breaker operating mechanism
Changed to serpentine DeviceNet cabling system
New design for 100,000 A bus bracing and begin use of right-hand sidesheet with integral mounting flanges.
May 1990
February 1996
May 2001
May 2009
Date Implemented in the U.S.
February 1971
November 1976
June 1979
April 1981
October 1982
October 1983
January 1985
July 1985
January 1986
October 1986
(1) Replacement and renewal parts are no longer supported. For more information, contact Rockwell Automation LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-Bradley>Low Voltage Motor Control Centers>Post Shipment Support.
14 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
General Information Chapter 1
Table 2 - 2100 Units
Series
Letter
A
(1)
B
(1)
C
(1)
D
(1)
E
(1)
F
(1)
G
(1)
H
(1)
J
(1)
K
L
M
N
P
Q
R
T
U
Scope Description of Change
—
All sizes
All sizes
Size 5
All sizes
All sizes
All sizes
All sizes
Original design
Changed terminal blocks
Changed handle mechanism to Cutler-Hammer MCPs
Changed from ITE to A-B 400A disconnect
Changed from Bulletin 709 series K starters to Bulletin 500 line starters
Redesign of gasketing, wraparound and unit support pan for Bulletin 700 line
Redesign of gasketing, wraparound and unit support pan for Bulletin 500 line
Changed to new door, circuit breaker mechanism and control station
Size 5
Size 3
Changed to Bulletin 500 series L
Changed to new PCP 100A disconnect
Size 6
Size 1-5 CB units and size 1-2 disc units
Changed to Bulletin 500 series B starters
Changed handle, operating mechanism and circuit breaker to Cutler-Hammer series C, 150 A,
250 A, 400 A frame
21A through 54A Changed to Bulletin 100 line contactors in 21 A, 30 A, 45 A SMC units and original design 24
A, 35 A, 54 A SMC units
All sizes
All sizes
Changed to new unit grounding system and 600 A, 800 A, 1200 A bolted pressure switch
Changed to PCP 200 A and 400 A disconnect, rerated vacuum Bulletin 2112 and 2113 and new pilot device offerings
External auxiliary on circuit breakers 0.5 SF CB units
2103L, 2113,
2193
All sizes and ratings
SMC units
New disconnect external auxiliary contacts and new 600 A...1200 A circuit breaker operating mechanism
Redesign and upgrade of ratings for 24 A...500 A SMC-2 and SMC-PLUS units. Original design of SMC Dialog Plus units
1200A 2193
800A 2193
225A 2193F
2000A 2193
All sizes
All 1.5 space factor units
All except 2100-
SD1
2100-SD1
Redesign of 1200A, 2193F and 2193M units
Changed circuit breakers to MDL Frame
Changed circuit breakers from J Frame to F Frame
Changed to flange mounted operating handle
Changed the Bulletin 800MR and Bulletin 800T-PS pilot devices to Bulletin 800Es
Changed unit bottom plate
Changed to new Bulletin 1497 control circuit transformer
Changed smoke detector head and base components
Date Implemented in
U.S.
February 1971
November 1976
June 1979
April 1981
April 1981
October 1982
October 1982
April 1984
October 1984
December 1988
October 1988
October 1986
November 1989
May 1990
January 1993
April 1994
May 1996
August 1997
November 1997
November 1998
October 1999
November 2000
November 2000
November 2000
July 2001
November 2001
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 15
Chapter 1 General Information
Table 2 - 2100 Units
Series
Letter
V
X
Y
Scope Description of Change
2162Q, 2163Q,
2164Q, 2165Q
2162R, 2163R,
2164R, 2165R
2154H, 2155H
2154J, 2155J
2112, size 3, 4 and 5
2162T, 2163T
2107, 2113, size
3
2162Q, 2163Q
All sizes
2154J, 2155J,
108 A and 135 A
2164Q, 2164R,
2165Q, 2165R
(Drive with manual bypass)
2107, 2113, size
2 and 3
Redesign of 240-480V PowerFlex 70 and release of 600V PowerFlex 70
Original release of PowerFlex 700
Original release of SMC-3
Original release of SMC Flex
Redesign to reduced space factor with Class J fuse clip
Original release of PowerFlex 40
Reduced space factor
Reduced space factor, changed CCT with integral fuses
800F pilot devices
Redesign to change units from frame mounted to plug-in
Redesign for change from SMP overload relay to E1Plus overload relay
Redesign due to starter component series letter change
Date Implemented in
U.S.
April 2002
July 2002
November 2002
April 2004
April 2004
September 2004
April 2005
April 2005
August 2005
March 2006
August 2006
December 2009
(1) Replacement and renewal parts are no longer supported. For more information contact Rockwell Automation LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-Bradley>Low Voltage Motor Control Centers>Post Shipment Support.
Table 3 - 2400 Units
C
D
A
B
Series
Letter
Scope Description of Change
— Original design
18A, 24A, 30A Changed to series B, Bulletin 194R, 30 A disconnect
18A, 24A, 30A Changed to three Bulletin 800E pilot devices on 0.5 space factor units
All sizes New disconnect external auxiliary contacts and new 600 A...1200 A circuit breaker operating mechanism
16A-85A Original design of units with a Bulletin 100-C contactor
Date Implemented in U.S.
June 1990
March 1992
July 1992
February 1996
September 1999
16 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
General Information Chapter 1
Series Lettering - Units and
Sections
When using sections in conjunction with units of different series letters, consult the table below.
Table 4 - MCC Modifications for Unit and Structure Compatibility
If Mounted in this Type of
Section
(1)
,
(2)
Plug-in Units No
Additional
Parts
Required
Requires
Style 1
Unit
Support
Pan
NEMA Type 1
Series A...D
(4)
Space
Factor
1.0 or larger
Series — 2100H-
UAJ1
— —
—
—
Requires
Style 3
Unit
Support
Pan
2100H-
UA12100H
-UJ1
2100H-
USPA1
2100H-
USPJ1
—
—
—
Requires
Style 3 Unit
Support
Pan w/
Bushing
Requires
Alternate
Top
Horizontal
Wireway
Pan
2100H-
NA4A1
2100H-
NA4J1
2100H-
NA4A2
2100H-
NA4J2
—
(5)
(5)
—
—
—
Requires
Door
Gasketing
Kit
Requires
Retrofit
Kit
(3)
Requires
Ground
Bus Kit
2100-GJ10 2100H-
R1
2100H-
R2
—
—
—
2100H-
GS1
—
—
NEMA Type 1
Series E...J
(4)
0.5
(2)
1.0 or larger
NEMA Type 1
Series K or later
0.5
(2)
1.0 or larger
NEMA Type 1 w/ gasket or Type
12
Series A...D
1.0 or larger
A-E
(4)
F-L
(4)
M or later
(6)
N or later —
A-E
(4)
—
F-L
(4)
— M or later
(6)
N or later
A-L
(4)
—
—
—
M or later
A-E
(4)
F-L
(4)
—
M or later —
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
(5)
(5)
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
(8)
—
—
(8)
—
—
—
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 17
Chapter 1 General Information
Table 4 - MCC Modifications for Unit and Structure Compatibility
If Mounted in this Type of
Section
12
(1)
,
(2)
NEMA Type 1 w/ gasket or Type
12
Series E...J
(7)
NEMA Type 1 w/ gasket or Type
Series K or later
Plug-in Units
Space
Factor
0.5
(2)
1.0 or larger
0.5
(2)
1.0 or larger
Series
No
Additional
Parts
Required
—
N or later —
A-E
(4)
—
F-L
(4)
M or later —
N or later
A-L
(4)
—
M or later
Requires
Style 1
Unit
Support
Pan
2100H-
UAJ1
—
—
—
—
—
—
—
Requires
Style 3
Unit
Support
Pan
2100H-
UA12100H
-UJ1
—
—
—
—
—
—
—
—
—
—
—
Requires
Style 3 Unit
Support
Pan w/
Bushing
2100H-
USPA1
2100H-
USPJ1
—
—
—
—
—
—
—
Requires
Alternate
Top
Horizontal
Wireway
Pan
2100H-
NA4A1
2100H-
NA4J1
2100H-
NA4A2
2100H-
NA4J2
—
—
—
—
—
—
—
Requires
Door
Gasketing
Kit
Requires
Retrofit
Kit
(3)
Requires
Ground
Bus Kit
2100-GJ10 2100H-
R1
2100H-
R2
—
—
—
—
—
—
2100H-
GS1
(8)
—
—
(8)
—
(1) When installing unit in topmost location in vertical sections, care must be taken to comply with the National Electric Code 6.7 ft (2000 mm) unit handle-to-floor height limitation. A unit operating handle extender (catalog number 2100-NE1) that provides 3 in. (76.2 mm) added height flexibility is available.
(2) When CENTERLINE 2100, 0.5 space factor or Space Saving NEMA Starter plug-in units are ordered unassembled or ordered for existing sections, a centralized wiring diagram holder kit (catalog number 2100H-WDH) should be ordered.
(3) Permits installation of 0.5 space factor or Space Saving NEMA Starter plug-in units in existing series E...J CENTERLINE 2100 vertical sections.
(4) Replacement and renewal parts are no longer supported. Contact Rockwell Automation LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-
Bradley>Low Voltage Motor Control Centers>Post Shipment Support.
(5) Required only if series F or later, 1.0 space factor or larger CENTERLINE 2100 unit is installed in topmost location of series A...E vertical sections.
(6) For more information regarding possible door hinge requirements, contact Rockwell Automation LV MCC Technical Support at 1.440.646.5800 and follow the prompts to
Allen-Bradley>Low Voltage Motor Control Centers>Post Shipment Support.
(7) Series E...J sections cannot accommodate 0.5 space factor or Space Saving NEMA Starter plug-in units in bottom-most unit location.
(8) A ground strap can be used to ground units rather than installing a ground bus. Refer to the CENTERLINE 2100 Motor Control Centers (MCC) Units with Vertical Operating
Handles Installation Instructions, publication 2100-IN014 .
18 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
General Information Chapter 1
Receiving, Handling, and
Storage
Refer to the following sections for information on receiving, handling, and storage of MCC units.
Receiving
As standard, CENTERLINE MCCs are shipped upright in shipping blocks of one to three front-mounted sections or two to six back-to-back sections. Each shipping block of an MCC is provided with a lifting angle. The lifting angle is optional on NEMA Type 3R and Type 4 MCCs. Each vertical section in a shipping block is bolted to the shipping skid and covered with clear plastic wrap.
Equipment that extends from the structures is also protected. Protection is for upright shipping and is not waterproof or watertight. If necessary, other types of packaging are available.
Refer to publication 2100-IN040 for receiving, handling, and storage instructions. This publication is shipped with each MCC, attached to the outside of the MCC within the layer of clear plastic wrap. For additional information about the handling, installation, operation, and maintenance of MCCs rated more than not 600V, consult NEMA ICS 2.3-1995.
Export Packaging
A maximum of three vertical sections standing upright can be shipped with export packaging together in one block. The MCC is bolted to a skid and wrapped in poly wrap suitable for occasional water-spray; a wooden frame and chipboard surround the sections. Export packaging is not watertight, waterproof or intended for long-term storage. Extended storage may require space heaters and other considerations. Export packing adds extra weight and dimensions to the shipping block.
Figure 8 - Handling and Receiving MCCs
Lifting Angle
Shipping Skid
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 19
Chapter 1 General Information
20
Handling
Lifting with a forklift, overhead lifting, sling lifting, and pipe or rod rolling are methods that can be used to handle vertical sections. See the following tables for typical weights and dimensions for standard 20 in. (508 mm) wide and 15 in.
(381 mm) or 20 in. (508 mm) deep sections. For sizes not listed consult your local
Rockwell Automation Sales Office.
Table 5 - Shipping Weights and Dimensions - Standard Packaging
Standard Packing
(1)
Weight lb (kg), approx.
500 (227) Front mounted
1-section block
Front mounted
2-section block
Front mounted
3-section block
Back-to-back
2-section block
Back-to-back
4-section block
Back-to-back
6-section block
1000 (454)
1500 (680)
1000 (454)
1800 (816)
2200 (998)
Height in. (cm), approx.
96 (244)
96 (244)
96 (244)
96 (244)
96 (244)
96 (244)
Depth in. (cm), approx.
36 (91)
36 (91)
36 (91)
42 (107)
42 (107)
42 (107)
Width in. (cm), approx.
43 (109)
43 (109)
63 (160)
43 (109)
43 (109)
63 (160)
(1) Standard packing for shipments in the United States and Canada. The MCC shipping block is mounted on a skid and covered in clear plastic wrap. This packaging is not watertight or waterproof.
Table 6 - Shipping Weights and Dimensions - Export Packaging
Export Packing
(below deck)
(1)
Weight lb (kg), approx.
600 (295)
Height in. (cm), approx.
99 (252)
Depth in. (cm), approx.
37 (94)
Width in. (cm), approx.
44 (112) Front mounted
1-section block
Front mounted
2-section block
Front mounted
3-section block
Back-to-back
2-section block
Back-to-back
4-section block
Back-to-back
6-section block
1150 (522)
1650 (748)
1200 (544)
2000 (907)
2450 (1111)
99 (252)
99 (252)
99 (252)
99 (252)
99 (252)
37 (94)
37 (94)
43 (109)
43 (109)
43 (109)
44 (112)
64 (163)
44 (112)
44 (112)
64 (163)
(1) Export packing for below deck is required for all international shipments. The MCC shipping block is mounted on a skid and covered in clear plastic wrap. This packaging is not watertight or waterproof.
Additional packing materials surround the shipping block. The export packing adds extra weight and increases the dimension of the shipping block.
ATTENTION: MCCs are top and front heavy. To avoid personal injury or structural damage, never attempt to lift or move the MCC by any means other than the methods outlined in Receiving, Handling and Storing Motor
Control Centers, publication 2100-IN040 .
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
General Information Chapter 1
Storage and Operation
CENTERLINE MCCs conform to NEMA standard ICS 1-2000 for service and storage conditions. All MCCs should operate in an ambient temperature above
0 o C (32 o F) but not exceeding 40 o C (104 o F) at 95% non-condensing humidity.
If the equipment is stored, the ambient temperature should remain above
-30 o C (-22 o F) but not exceed 65 o C (149 o F). In addition, MCCs have an altitude class of 2 km (1 km for MCCs that contain variable frequency drives).
The altitude class of 2 km designates equipment for installation where the altitude does not exceed 2000 m (6600 ft). For installation above
2000 m (6600 ft), contact Rockwell Automation LV MCC Technical Support at
1.440.646.5800 and follow the prompts to Allen-Bradley>Low Voltage Motor
Control Centers>Post Shipment Support.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 21
Chapter 1 General Information
Notes:
22 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
2
Installation Procedures
Location Planning
Height Considerations
When planning the location for your CENTERLINE MCC, consider the following:
•
Conduits
•
Busways
•
Overall height of installation area
•
Alignment with other equipment
•
Future needs
•
Ambient temperature
The area must be level and the environment must be compatible with the NEMA enclosure rating of the equipment
Documentation packages shipped with assembled MCCs include an MCC elevation drawing and an MCC floor plan layout.
If the MCC is equipped with optional external mounting channels or is mounted on a pad, the height from the floor to the center of the top handles must be checked for compliance with NFPA 70 National Electrical Code (NEC) Article
404.8 and UL Standard 845. If the distance from the floor to the center of the highest handle is greater than 6.7 ft (2042.16 mm) a unit operating handle extender should be added (catalog number 2100H-NE1).
Figure 9 - Height Planning Dimensions
Cement Pad
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Height of Handle
6.7 ft (2042.16 mm)
Maximum
Floor Line
23
Chapter 2 Installation Procedures
ArcShield Clearance Height
The area above the MCC top plate must be unrestricted to allow for proper operation of the pressure relief venting system.
•
A minimum clearance above the top of the MCC of 12 in. (305 mm) must be available to allow for pressure relief and/or venting should an internal arcing fault occur.
•
Conduit, cable, and wiring must be installed in such a way so that it does not interfere with the opening of the top plate vent (no cable or conduit in the top-rear of cabinet; cable trays must be a minimum of 12 in. (305 mm) above the top plate).
IMPORTANT The lifting angle should not be removed from ArcShield sections with
100 ms arc resistant rating.
Figure 10 - ArcShield Planning Dimensions
ArcShield Sections with
100 ms Arc Rating Only
12 in. (305 mm)
Securing an MCC
Anchor bolts [1/2 in. (13 mm)] may be embedded in the foundation prior to installation. Two bolts per vertical section fasten the MCC through its internal mounting angle to the foundation [corner sections require three bolts and 40 in.
(1016 mm) wide sections require four bolts]. See the following illustrations and tables for general dimensions. Dimensions matching your equipment can be found on the elevation drawings shipped with your MCC.
24 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
Figure 11 - Mounting Dimensions for 15 in. and 20 in. Sections
IMPORTANT The external vertical support angle on MCC sections with 100 ms arcresistant rating add an additional 2 in. (50.8 mm) to each end of the lineup.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 25
Chapter 2 Installation Procedures
Figure 12 - Mounting Dimensions for 15 in. and 20 in. Sections - continued
(2) Mounting Slots
0.56 in. x 1.13 in. Slots
(14 mm x 29 mm) Slots
A
Rear
D D Standard Ground Bus
0.25 in.
(6.35 mm)
C
B
7.38 in.
(187 mm)
Front
E E
For seismic bolt-down applications: first section of the MCC lineup.
For seismic bolt-down applications: last section of the MCC lineup, extra bolt-down locations (2 bolts).
The optional external mounting channels add 1.5 in. (38.1 mm) to the height.
Dimensions approx.
A
B
20 in. Wide in. (mm)
15 in. Deep
25 in. Wide in. (mm)
30 in. Wide in. (mm)
35 in. Wide in. (mm)
20 in. Wide in. (mm)
20 in. Deep
25 in. Wide in. (mm)
30 in. Wide in. (mm)
35 in. Wide in. (mm)
20.00 (508) 25.00 (635) 30.00 (762) 35.00 (889) 20.00 (508) 25.00 (635) 30.00 (762) 35.00 (889)
15.00 (381) 15.00 (381) 15.00 (381) 15.00 (381) 20.00 (508) 20.00 (508) 20.00 (508) 20.00 (508)
C
D
E
(1)
11.56 (294)
10.00 (254)
9.25 (235)
11.56 (294)
12.50 (318)
11.75 (299)
11.56 (294)
15.00 (381)
14.25 (362)
11.56 (294)
17.50 (445)
16.75 (426)
16.56 (421)
10.00 (254)
9.25 (235)
16.56 (421)
12.50 (318)
11.75 (299)
16.56 (421)
15.00 (381)
14.25 (362)
16.56 (421)
17.50 (445)
16.75 (426)
(1) Applies to first and last sections that require seismic ratings.
26 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
7.38 in. (187 mm)
Mounting Dimensions for 30 in. and 40 in. Deep Back-to-Back Section
A 1.69 in. (43 mm)
D D
Front
(4) Mounting Slots
0.56 in. x 1.13 in. in Slots
(14 mm x 29 mm) Slots
C
B
0.25 in. (6 mm)
0.25 in. (6 mm)
Rear
Rear
3.19 in. (81 mm)
Standard Ground Bus
C
7.38 in. (187 mm)
Front
Dimensions approx.
A
B
C
D
20 in. Wide in. (mm)
20.00 (508)
30.00 (762)
11.56 (294)
10.00 (254)
20 in. Deep
25 in. Wide in. (mm)
30 in. Wide in. (mm)
25.00 (635)
30.00 (762)
30.00 (762)
30.00 (762)
11.56 (294)
12.50 (318)
11.56 (294)
15.00 (381)
35 in. Wide in. (mm)
20 in. Wide in. (mm)
40 in. Deep
25 in. Wide in. (mm)
30 in. Wide in. (mm)
35 in. Wide in. (mm)
35.00 (889) 20.00 (508) 25.00 (635) 30.00 (762) 35.00 (889)
30.00 (762) 40.00 (1016) 40.00 (1016) 40.00 (1016) 40.00 (1016)
11.56 (294)
17.50 (445)
16.56 (421)
10.00 (254)
16.56 (421)
12.50 (318)
16.56 (421)
15.00 (381)
16.56 (421)
17.50 (445)
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 27
Chapter 2 Installation Procedures
Figure 13 - Mounting Dimensions for 25 in. Wide Section with 9 in. (228.6 mm)
Wireway [90 in. (2286 mm) high]
The optional external mounting channels add 1.5 in. (38.1 mm) to the height.
28 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
Figure 14 - Mounting Dimensions for 10 in. Wide Section with 10 in. (254 mm)
Incoming Line Section
A (L1)
A (L2)
A (L3)
1.25 in. (32 mm)
7.5 in. (191 mm)
10 in. (254 mm)
1.12 in. (28 mm)
Power Wires
A
B
Dimension, approx.
A
B
Section Depth
15 in. (381 mm) Deep in. (mm
20 in. (508 mm) Deep in. (mm
12.75 (324)
14.75 (375)
17.75 (451)
19.75 (502)
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 29
Chapter 2 Installation Procedures
Figure 15 - Mounting Dimensions for NEMA 3R and 4 Section [90 in. (2866 mm) high]
30 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
Figure 16 - Mounting Dimensions for NEMA 3R and 4 Section
A
Ground Bus
B
Rear
C
2.87 in. (73 mm)
12.37 in.
(314 mm) 0.25 in.
(6 mm)
Interior Section
16.56 in. (421 mm)
14.06 in. (337 mm)
Front (2) Mounting Holes
0.63 in. (16 mm) Diameter
If the optional non-removal lifting angle is supplied, add 3.63 in. (92.2 mm) to height.
Exterior Section Width
Dimension, approx.
20 in. (508 mm)
Wide
(1) in. (mm)
25 in. (635 mm)
Wide
(1) in. (mm)
30 in. (762 mm)
Wide
(1) in. (mm)
A
B
C
25.00 (635)
13.75 (349)
11.25 (286)
30.00 (762)
16.25 (413)
13.75 (349)
35.00 (889)
18.75 (476)
16.25 (413)
(1) This measurement is the interior section width.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 31
Chapter 2 Installation Procedures
Figure 17 - Mounting Dimensions for 15 in. and 20 in. Deep Corner Section
[90 in. (2866 mm) high]
32
A
B
B
A
1.41 in. (36 mm)
(2) Mounting Slots
0.56 in. x 1.13 in. in Slots
(14 mm x 29 mm) Slots
D
C
0.25 in. (6 mm)
1.41 in. (36 mm)
D
(2) Mounting Holes
0.63 in. (16 mm) Diameter
C
0.25 in. (6 mm) Ground Bus
The optional external mounting channels add 1.5 in. (38.1 mm) to the height.
Section Depth
Dimension, approx.
15 in. (381 mm) Deep in. (mm)
20 in.(635 mm) Deep in. (mm)
C
D
A
B
25.13 (638)
12.63 (321)
16.81 (427)
17.62 (448)
30.13 (765)
15.13 (384)
21.81 (554)
22.62 (575)
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
Figure 18 - Mounting Dimensions for 15 in. and 20 in. Deep x 40 in. Wide
Front-mounted Section
The optional external mounting channels add 1.5 in. (38.1 mm) to the height.
Dimensions approx.
A
B
C
20 in. Wide in. (mm)
25 in. Wide in. (mm)
Section Width
(1)
30 in. Wide in. (mm)
35 in. Wide in. (mm)
40 in. Wide in. (mm)
17.25 (438) 22.25 (565) 27.25 (692) 32.25 (819) 37.25 (946)
16.50 (419) 21.50 (546) 26.50 (673) 31.50 (800) 36.50 (927)
5.25 (133) 7.75 (197) 10.25 (260) 12.75 (324) 15.25 (387)
(1) When a horizontal bus or a disconnecting means (switch or circuit breaker) is specified, reduce the ‘A’ dimension by 5 in. (127 mm).
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 33
Chapter 2 Installation Procedures
Figure 19 - Mounting Dimensions for 15 in. and 20 in. Deep x 40 in. Wide
Front-mounted Section
40.00 in. (1016 mm)
10.00 in. (254 mm)
10.00 in. (254 mm)
1.69 in. (43 mm)
Rear
0.25 in. (6 mm)
B A
7.15 in. (102 mm)
Standard Ground Bus
Front
20.00 in. (508 mm)
(4) Mounting Slots
0.56 in. x 1.13 in. in Slots
(14 mm x 29 mm) Slots
Dimension, approx.
A
B
Section Depth
15 in. (381 mm) Deep in. (mm)
20 in. (508 mm) Deep in. (mm)
15 (381)
11.56 (294)
20 (508)
16.56 (421)
34 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
A
Figure 20 - Mounting Dimensions for 71 in. H (reduced height) MCC Sections
0.25 in. (6 mm) 20 in.
(508 mm)
0.25 in. (6 mm) 20 in.
(508 mm)
D
B
E
C
70.48 in.
(1790.19 mm)
70.48 in.
(1790.19 mm)
Dimension, approx.
C
D
A
B
E
71 in. High Section
(1803.4 mm)
Section Depth
15 in. (381 mm) Deep in. (mm)
20 in.(635 mm) Deep in. (mm)
15.00 (380)
14.75 (374)
5.12 (130)
4 (101)
—
20.00 (508)
19.75 (500)
10.12 (256)
8 (203)
4.40 (112)
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 35
Chapter 2 Installation Procedures
Seismic Requirements
To demonstrate the seismic withstand of various CENTERLINE MCCs [20 in. deep (508 mm), 30 in. deep (762 mm) back-to-back, and 40 in. deep (1016 mm) back-to-back], the MCC design construction has been qualified by seismic calculations per the Uniform Building Code (UBC). CENTERLINE 2100
MCC samples have been seismically qualified by dynamic (triaxial multifrequency testing) seismic tests per IEEE 344 Seismic Test Standards. The results of the MCC seismic testing demonstrated compliance with the 100% g level of
Uniform Building Code 1997 (UBC) zone 4 (the maximum UBC zone) and
100% g level of The International Building Code 2006 (IBC), for example, the
MCC structure, the MCC units, and the MCC components or electrical functions were not compromised when subjected to a UBC Zone 4 earthquake, or the IBC seismic event. Per the IEEE 344 standard, the equipment was under power and operated before, during, and after the seismic tests.
IMPORTANT Variable frequency drive units using ‘rollout’ drive configurations are not seismically tested.
In order to obtain a UBC or IBC seismic withstandability, each individual
CENTERLINE 2100 MCC lineup (for example, both front and back MCCs in
‘back-to-back applications), must be mounted on an adequate seismic foundation and installed per the seismic anchoring requirements as shown in the following illustrations.
In seismic application dimensions ‘E’ applies to the first and last sections of the
MCC lineup. See Figure 11 Mounting Dimensions for 15 in. and 20 in. Sections
for dimensions.
Figure 21 - Seismic Bolt Down Requirements
E Rear E
1
1
1
First Section Front
Second Section and
Additional Sections
MCC Lineup
Last Section
1
The hardware required is 1/2 in.-13 Grade 5 or HSL-3 M12 or better bolts embedded in the foundation.
36 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
Figure 22 - Seismic Weld Down Requirements
0.25 in. (6 mm)
Rear
1.50 in.
(38 mm)
Second Section and
Additional Sections
First Section
1.50 in. (38 mm)
Front
1.50 in. (38 mm)
1.50 in. (38 mm)
MCC Lineup
Last Section
1.50 in. (38 mm)
1.50 in.
(38 mm)
Rear Optional Location for Rear Welds
Front
Floor Line
Left-hand Side View
Joining and Splicing New
MCCs
A main horizontal bus splice kit must be installed between shipping blocks of new MCCs to connect the main horizontal bus. In addition, the neutral bus splice kit (if required) and the ground bus splice kit must be installed between shipping blocks. Refer to CENTERLINE 2100 Motor Control Centers Joining and Splicing Vertical Sections Instructions, publication 2100-IN010 .
Joining and Splicing
Existing MCCs
A main horizontal bus, a neutral bus (if required), and a ground bus splice kit must be installed when adding to existing CENTERLINE MCCs. When adding to existing MCCs, you must identify the series of the MCC that you will be adding to. If the existing MCC is series A or B, you must consult MCC technical support at 1.440.646.5800 and follow the prompts to Allen-Bradley>Low
Voltage Motor Control Centers>Post Shipment Support for joining and splicing procedures. When the existing MCC is series C or later, refer to
CENTERLINE 2100 Motor Control Centers Joining and Splicing Vertical
Sections Instructions, publication 2100-IN010 .
Be sure to also connect DeviceNet cables and other control cables as required.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 37
Chapter 2 Installation Procedures
Joining and Splicing MCCs with ArcShield
In addition to the horizontal, neutral (if required), and ground bus splicing kits,
CENTERLINE MCCs with arc-resistant ratings have these additional requirements:
• MCCs with the 100 ms arc-resistant rating have a back-corner baffle at the end of each lineup and insulation on the side closing-plate at the end of the lineup. They also have external vertical support angles at each end of the lineup.
•
MCCs with the device-limited rating have insulation on the horizontal bus side closing-plates at each end of the lineup.
Installing and Joining Pull
Boxes
When pull boxes are supplied with your MCC, refer to Installing a Pull Box on a
Bulletin 2100 Vertical Section, publication 2100-IN029 , for installing and joining the pull box onto the vertical section.
Joining and Splicing NEMA
Type 12 MCCs
NEMA Type 12 MCCs must be properly installed to prevent the ingress of dust and dirt. Follow the caulking instructions in the NEMA Type 12 Sealing
Instructions, publication 2100-IN037 , supplied with the NEMA 12 MCC.
Using caulk, close any mounting holes in the bottom plates and bolt holes between shipping splits.
It is necessary that all door latches and wireway doors be fully latched to prevent dust and dirt from entering the enclosure and to meet NEMA Type 12 requirements.
Joining and Splicing NEMA
Type 3R and Type 4 MCCs
A main horizontal bus, a neutral bus (if required) and a ground bus splice kit must be installed between the internal sections for new and existing NEMA Type
3R and Type 4 MCCs. Refer to CENTERLINE 2100 Motor Control Centers
Joining and Splicing Vertical Sections Instructions, publication 2100-IN010 , for splicing Type 3R and Type 4 internal sections.
Figure 23 - Joining Instructions for NEMA Type 3R and 4 Sections
38 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installation Procedures Chapter 2
Cabinet Spacer
(2) 0.25 in. (6 mm) x 0.50 in. (12.7 mm) Taptites
MCC MCC
Remove right-hand driphood angle and discard. Drill out (5) 0.172 in. (4.36 mm) diameter holes to 0.25 in. (6 mm) diameter in driphood.
(2) wireway extensions required for 15 in. (381 mm) deep.
(2) wireway extensions required for 20 in. (508 mm) deep.
(1) 0.25 in. (6 mm) -20 x 0.70 in. (17.78 mm) taptite per wireway extension.
MCC
Remove left-hand driphood angle and remount after the adjacent driphood has been drilled out.
(2) 0.25 in. (6 mm) x 0.50 in. (12.7 mm) Taptite
Gasket
Gasket
Remove the right-hand and lefthand side plates before joining sections. The gasket is across the top of the driphood and down the backplate on one of the adjoining sections.
Gasket
Cabinet Spacer
(2) 0.25 in. (6 mm) x 0.50 in.
(12.7 mm) Taptites
Wireway Extensions
(2) or (4) 0.25 in. (6 mm) x 0.50 in.
(12.7 mm) Taptites
Cabinet Spacer
(2) 0.25 in. (6 mm) x
0.50 in. (12.7 mm)
Taptites
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 39
Chapter 2 Installation Procedures
Bus Torque Specifications
Tighten all bus splice connections with a torque wrench and socket at intervals established by your maintenance policy. See
for suggested maintenance. If a torque wrench is not available, tighten until the conical spring washer is flat.
Torque values can be found on the information label on the interior of the vertical wireway door or on the interior right-hand side plate of frame mounted units.
40 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing Conduit
Chapter
3
Installing Conduit and Cable
When installing conduit, make sure it is installed according to local codes - to assure water and moisture cannot enter or accumulate in the MCC enclosure.
Conduit must be installed so they are compatible with the NEMA rating of the
MCC. The conduit should be placed away from the horizontal ground bus to avoid damage. We recommend that the conduit be positioned to minimize cable bending and maintain relative vertical alignment to incoming connections.
Bottom Entry Conduit
Follow this procedure if your conduit is entering from the bottom.
1.
Prepare the installation site so the foundation is level.
2.
Before the MCC is installed, place and stub up conduit approximately 2 in.
(51 mm) above floor level, making sure all incoming conduit is clear of the horizontal ground bus.
For approximate section base dimensions and ground bus locations, refer to Installation Procedures,
Chapter 2 , or elevation and floor plan drawings
shipped with MCC.
For approximate bottom entry locations and wiring schemes for main fusible disconnects, main circuit breakers, and incoming line compartments, refer to Mains and Incoming Lines Dimension Reference, publication 2100-TD018 .
Top Entry Conduit
ATTENTION: For ArcShield units with 100 ms arc duration rating, conduit, cable, and wiring must be installed in such a way so that it does not interfere with the opening of the top plate vent (no cable or conduit in the top-rear of cabinet; cable trays must be a minimum of 12 in. (305 mm) above the top plate).
Follow this procedure if your conduit is entering from the top.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 41
Chapter 3 Installing Conduit and Cable
Installing Cable
42
1.
After the MCC is in place, leveled, and the sections are joined and spliced, bring conduit into the top of the incoming section.
For approximate top entry locations and wiring schemes for main fusible disconnects, main circuit breakers and incoming line compartments, refer to Mains and Incoming Lines Dimension Reference, publication 2100-TD018 .
2.
Remove the lifting angle and top plate.
3.
Modify the top plate for necessary conduit entries.
This method helps guard against metal chips falling into the MCC, which can cause serious damage to the components.
4.
Replace the top plate and lifting angle bolts to guard against dust or dirt from entering the top horizontal wireway.
5.
Make sure that all incoming conduit is clear of the horizontal ground bus.
For approximate location of the horizontal ground bus mounted in the top horizontal wireway, refer to Mains and Incoming Lines Dimension
Reference, publication 2100-TD018 .
For space availability for incoming cables, refer to the elevation drawings shipped with assembled MCCs.
Install the cable when the temperature is above freezing 0 °C (32 °F), unless the cable is suitable for installation at temperatures below freezing. This will help prevent cable insulation from cracking or splitting.
MCCs are rated for use with 75 °C (167 °F) cable. Cable must be sized by using a
75 °C (167 °F) column in NEC Table 310–16 (NEC 2005 Edition). The temperature rating of the lugs is not relevant.
ATTENTION: Properly connect all line and load cables to avoid a bolted fault and equipment damage.
Lugs
Follow this procedure to install the lugs.
1.
Verify the compatibility of wire size, type, and stranding versus the power lugs furnished.
Use correct lugs in all applications.
2.
Crimp compression lugs with manufacturer recommended tools.
3.
Use the MCC electrical schematics to verify field wiring connection points.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing Conduit and Cable Chapter 3
Incoming Line Compartment
Top or bottom entry to the incoming line-section bus is straight through to the connection terminals. The vertical bus provides pads for the incoming lugs. The lug selection should be based on the size, number, and type of conductor.
• Use of mechanical screw-type lugs is acceptable only when the incoming lines’ available short-circuit current is 42,000 A rms symmetrical or less.
•
Use of crimp or compression type lugs is acceptable when the incoming lines’ available short-circuit current does not exceed 100,000 A rms symmetrical.
Main Disconnect
Top entry is straight through to the line side of the main fusible disconnect or main circuit breaker. For bottom entry, the connection scheme varies depending on the rating of the main device. In some cases, the bottom entry connects to the top or line side of the main fusible disconnect or main circuit breaker. In other cases the connection is reverse-fed, the bottom entry cables connect to the bottom of the main fusible disconnect or main circuit breaker. For further information refer to Mains and Incoming Lines Dimension Reference, publication 2100-TD018 .
Mechanical screw-type lugs are supplied as standard with all main fusible disconnects or main circuit breakers. Crimp or compression lugs are optional.
Cable Bracing
The CENTERLINE MCC bus work system has been tested and is qualified to withstand maximum short-circuit forces exceeding the short-circuit withstand ratings for the MCC. Incoming line cables and outgoing feeder cables also need to be supported to withstand the same short-circuit forces. Follow NEC and local codes when bracing incoming and outgoing cables. There are many sizes and types of cables, as well as different means by which the cables can be supported.
Acceptable methods are shown on the following pages.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 43
Chapter 3 Installing Conduit and Cable
Securing Cables with Glass Tape
In this example, glass fiber-reinforced tape or glass filament tape is used. The taping should be continuous from the point the cables enter the MCC to the point the cables are terminated. It is important that cables are wrapped several times for additional strength. Cable slack should be drawn up during wrapping so that individual cables are supported by the tape as a single mass.
Figure 24 - Securing Cables with Glass Tape
Securing Cables with Nylon Rope
In this example, cables are lashed in a ‘figure 8’-type configuration by using nylon rope. The rope lashing should be continuous from the point the cables enter the
MCC to the point the cables are terminated. Other types of rope lashing may be acceptable. Cable slack should be drawn up during wrapping so that individual cables are supported by the rope as a single mass.
Figure 25 - Securing Cables with Nylon Rope
44 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing Conduit and Cable Chapter 3
Securing Cables with Hardwood
In this example, a hardwood brace (maple hardwood) made for the specific application is used. Holes are bored approximately the size of the cable diameter.
Several bolt holes are also bored the breadth of the hardwood brace. The brace is cut in two pieces and is used as a clamp to secure the cables. Through bolts are inserted into the brace and tightened so that cables are held tightly in place.
Figure 26 - Securing Cables with Hardwood
A second form of hardwood brace (not shown) is a yolk type in which the cables are passed through. Holes should be small enough to provide a snug fit for the cables. The connectors or lugs are attached to the cables and cables are bolted to the terminals.
When using the hardwood bracing method and the short circuit current is less than 42,000 A, cables should be braced every 12 in. (305 mm). When the short circuit current is 42,000 A or greater, cables should be braced every 6 in.
(153 mm).
Incoming Line Brace
Allen-Bradley manufactures an incoming line brace similar to the hardwood clamping-type brace. To order an incoming line brace, contact your local Allen-
Bradley sales office and reference assembly number 40113–848.
IMPORTANT Lugs should be installed so they are in line with each other and proper spacing is used between phases. Hardware must be torqued per the torque tables found on the enclosure door.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 45
Chapter 3 Installing Conduit and Cable
Notes:
46 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing and Removing Plug-in Units
Chapter
4
ATTENTION: When installing or removing MCC units, when possible, deenergize, lockout, and tag-out all sources of power to the MCC. If the
MCC units will be installed or removed with power applied to the main power bus, follow established electrical safety work practices. Refer to the NFPA 70E Standard for Electrical Safety in the Workplace publication.
ATTENTION: Review your company safety lockout and tag-out procedure.
De-energize all units before installing or removing.
ATTENTION: All covers and doors must be in place before applying power to the MCC. If units are removed, they must be replaced with the appropriate items such as units, doors, and unit support pans.
ATTENTION: When installing units for CENTERLINE 2100 Motor Control
Centers with the ArcShield rating, you must make sure you are installing a unit that has the same arc resistance rating as the MCC in which it is being installed. The arc resistance rating can be found on the ArcShield label on the vertical wireway door.
Units that are not rated for 100 ms arc duration must not be installed in a section that is rated for 100 ms arc duration. The arc resistant rating will not apply if that is done.
Installing Plug-in Units
For unit installation, refer to CENTERLINE 2100 Motor Control Centers
(MCC) Units with Vertical Operating Handles Installation Instructions, publication 2100-IN014 , and CENTERLINE 2100 Motor Control Center
(MCC) Units with Horizontal Operating Handles Installation Instructions, publication 2100-IN060 .
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 47
Chapter 4 Installing and Removing Plug-in Units
Remove a Plug-in Unit with a Vertical Operating Handle from a Section
1.
Make sure the disconnect handle is in the OFF/O position.
2.
For non-arc resistant units, turn the door latches 1/4 turn; for units that are equipped with arc-resistant door latches, push in the latch and rotate
1/4 turn.
Arc Containment Latch
48 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
3.
Open the door completely.
Installing and Removing Plug-in Units Chapter 4
4.
.Remove the unit door, if necessary.
TIP It is not necessary to remove the unit door to remove a unit from a section. However, these steps may still be necessary even when the door is not removed.
a. Remove the door-mounted devices and wiring, if necessary.
b. Remove the hinge pins by sliding upward with a flathead screwdriver.
For Units With
A control station
ArcShield units with
100 ms arc duration rating
Follow This Step
First slide the hinge pin out of the hinge and through the tab on the control station wiring.
Two hinges are required for each hinge leaf.
1. The upper hinge on each door must be removed from the structure to remove the uppermost hinge pin.
2. Remove the hinge pin through the lower hinge, then through the hinge leaf and upper hinge.
Only top hinge must be removed to install hinge pin.
Hinge for ArcShield Units with 100 ms Arc Duration Rating
Hinge
Hinge Pin
Hinge Leaf
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 49
Chapter 4 Installing and Removing Plug-in Units
The control station can be hung on the front of the unit by using square holes adjacent to the top unit latch.
c. Swing the door to near closed position.
d. Lift the door outward to remove.
5.
Disengage the captive latches at the front of the unit, one at the top and one at the bottom of the unit.
Units that are 2.0 space factor and larger have two latches at the top. All units with the 100 ms arc-resistant rating have two latches at the top.
50
Wiring
Tunnel
6.
Detach the front portion of the pull-apart terminal blocks from the unit base and place the wires and terminal blocks in line with the wiring clearance tunnel.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing and Removing Plug-in Units Chapter 4
.
7.
Remove other cables or devices that would prevent the unit from being withdrawn.
TIP It is not necessary to place wires and terminal blocks into the vertical wireway to remove a plug-in unit that includes the wiring clearance tunnel.
8.
Pull the unit forward (outward) approximately 3 in. (7.5 cm) out of the
MCC, using the handle provided at the lower left of the unit and the tab in the upper right of the unit as finger holds.
You may need to reposition your hands as necessary to properly support the unit while you are removing the unit from the MCC.
ATTENTION: Plug-in MCC units may be heavy or awkward to handle. Use an assistant or a platform lift device if necessary to help you handle the unit.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 51
Chapter 4 Installing and Removing Plug-in Units
For the CENTERLINE 2100 MCC units with arc-resistant door latches, you may need to tilt the top of the unit slightly to the rear to avoid interference with the top arc latch bracket before removing the unit. If you do not have enough clearance, you will need to loosen the latch bracket screw (approximately two turns) to remove the unit.
Latch Bracket
Latch Bracket
TIP For dual-mounted, fusible-feeder disconnect switch units, you will need to remove the bottom arc latch bracket. You can do this by first removing the unit below the dual disconnect unit.
9.
Remove the unit from the MCC.
10.
Carefully install protective caps or close manual shutters after the unit is removed.
Automatic shutters will close as units are removed.
ATTENTION: All covers and doors must be in place before applying power to the MCC. If units are removed, they must be replaced with the appropriate items such as units, doors, and unit support pans.
When installing units for CENTERLINE 2100 Motor Control Centers with the ArcShield rating, you must make sure you are installing a unit that has the same arc resistance rating as the MCC in which it is being installed. The arc resistance rating can be found on the
ArcShield label on the vertical wireway door.
Units that are not rated for 100 ms arc duration must not be installed in a section that is rated for 100 ms arc duration. The arc resistant rating will not apply if that is done.
52 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing and Removing Plug-in Units Chapter 4
Remove a Plug-in Unit with a Horizontal Operating
Handle from a Section
1.
Make sure the disconnect handle is in the OFF/O position.
2.
For non-arc resistant units, turn the door latch 1/4 turn; for units that are equipped with arc-resistant door latches, push in the latch and rotate 1/4 turn.
Arc Containment Latch
3.
Open the door completely.
4.
Remove the unit door, if necessary.
TIP It is not necessary to remove the unit door to remove a unit from a section. However, these steps may still be necessary even when the door is not removed.
a. Remove the door-mounted devices and wiring, if necessary.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 53
Chapter 4 Installing and Removing Plug-in Units
.
b. Remove the hinge pins by sliding upward with a flathead screwdriver.
For Units With
A control station
ArcShield units with
100 ms arc duration rating
Follow This Step
First slide the hinge pin out of the hinge and through the tab on the control station wiring.
Two hinges are required for each hinge leaf.
1. The upper hinge on each door must be removed from the structure to remove the uppermost hinge pin.
2. Remove the hinge pin through the lower hinge, then through the hinge leaf and upper hinge.
Only top hinge must be removed to install hinge pin.
Hinge for ArcShield Units with 100 ms Arc Duration Rating
Hinge
Hinge Pin
Hinge Leaf
The control station can be hung on the front of the unit by using square holes adjacent to the top unit latch.
c. Swing the door to near closed position.
d. Lift the door outward to remove.
54 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Installing and Removing Plug-in Units Chapter 4
5.
Detach the wiring/terminal block from the unit.
6.
Place the wiring/terminal block in the vertical wireway to the right of unit.
7.
Push the latch mechanism to the left with your right hand.
8.
Pull the unit forward (outward) approximately 3 in. (7.62 cm) out of the
MCC.
You may need to reposition your hands as necessary to properly support the unit while you are removing the unit from the MCC.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 55
Chapter 4 Installing and Removing Plug-in Units
For the CENTERLINE 2100 MCC units with swing-out door latches, you will need to rotate the latch bracket 90 o
clockwise to avoid interference with the unit.
56
Swing-out
Latch
Bracket
ATTENTION: Plug-in MCC units may be heavy or awkward to handle. Use an assistant or a platform lift device if necessary to help you handle the unit.
9.
Remove the unit from the MCC.
10.
Carefully install protective caps or close the manual shutters after unit is removed.
ATTENTION: All covers and doors must be in place before applying power to the MCC. If units are removed, they must be replaced with the appropriate items such as units, doors, and unit support pans.
Automatic shutters will close as units are removed.
11.
See the next section for additional information.
ATTENTION: All covers and doors must be in place before applying power to the MCC. If units are removed, they must be replaced with the appropriate items such as units, doors, and unit support pans.
When installing units for CENTERLINE 2100 Motor Control Centers with the ArcShield rating, you must make sure you are installing a unit that has the same arc resistance rating as the MCC in which it is being installed. The arc resistance rating can be found on the
ArcShield label on the vertical wireway door.
Units that are not rated for 100 ms arc duration must not be installed in a section that is rated for 100 ms arc duration. The arc resistant rating will not apply if that is done.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Remove the Support Pan
Installing and Removing Plug-in Units Chapter 4
1.
For ArcShield sections with 100 ms arc duration rating, remove the vertical wireway baffle and set aside for installation later.
2.
Pry the plastic retaining clip from the right-hand unit support by using a screwdriver.
This is visible in the vertical wireway.
Plastic
Retaining
Clip
For CENTERLINE MCC units with arc resistant latches, the unit support pan is secured to the right-hand unit support by the screw that retains the arc latch bracket. In order to remove the unit support pan, you must remove the arc latch bracket.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Arc Latch
Bracket
57
Chapter 4 Installing and Removing Plug-in Units
For CENTERLINE MCC units with the 100 ms arc duration rating, there is an additional screw that secures the unit support pan. This screw is at the left-rear corner of the unit support pan.
Unit Support Pan
Unit Support
Pan Screw
3.
Lift the right side of the support pan approximately 4 in. (102 mm).
58
4.
Pull the right side of the support pan forward to release from the left rear slot on the structure.
5.
Push back on the left side of the support pan until the support pan is free from the structure.
Vertical sections may be supplied with plug-in stab opening protective caps, manual shutters, or automatic shutters. Refer to the next step if any of these options are supplied.
6.
Carefully install the protective caps or close the manual shutters after the unit is removed.
Automatic shutters will close as the units are removed.
ATTENTION: All covers and doors must be in place before applying power to the MCC. If units are removed, they must be replaced with the appropriate items such as units, doors, and unit support pans.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
5
Arc Flash Protection Marking as Required by the National Electrical Code
Flash Protection Marking
Requirement
The flash protection marking requirement was initially established in 2000 by
The National Fire Protection Association (NFPA 70E), Standard for Electrical
Safety Requirements for Employee Workplaces. NFPA 70E applies to workers who install, maintain, or repair electrical systems.
In 2002, NFPA 70, The National Electrical Code (NEC) added the Article
110.16, and reinforced the flash protection marking of equipment. The 2002 version of the article is stated below.
110.16 Flash Protection
Switchboards, panelboards, industrial control panels, and MCCs that are in other than dwelling occupancies and are likely to require examination, adjustment, servicing, or maintenance while energized shall be field marked to warn qualified persons of potential electric arc flash hazards.
The marking shall be located so as to be clearly visible to qualified persons before examination, adjustment, servicing, or maintenance of the equipment.
FPN No. 1: NFPA 70E-2000, Electrical Safety Requirements for
Employee Workplaces, provides assistance in determining severity of potential exposure, planning safe work practices, and selecting personal protective equipment.
FPN No. 2: ANSI Z535.4-1998, Product Safety Signs and Labels, provides guidelines for the design of safety signs and labels for application to products.
As Arc Flash Technology emerges, new developments have caused changes to arc flash criteria. For example, in 2004, the NFPA 70E was reissued in a completely new format along with changes reflecting new developments. The NEC is revised every three years and the NFPA 70E is revised every four years. The latest editions of the NEC and NFPA 70E should be used in establishing potential electric arc flash hazards and arc flash marking.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 59
Chapter 5 Arc Flash Protection Marking as Required by the National Electrical Code
Arc Flash Marking
Clarification
The flash protection marking per NEC Article 110.16 is a field marking requirement and is to be applied by the MCC end-user for each specific application. The marking is similar to other NEC marking requirements, for example, voltage, voltage hazard labels, and circuits. However, flash protection markings must be based on application information and calculations from the installation site. The intent of the marking is to identify the presence of a potential flash hazard and to provide assistance in determining necessary protective clothing and personal protective equipment (PPE) that should be worn by qualified electrical persons when servicing electrical equipment. You must establish field marking requirements based upon:
• the level of the on-site personnel safety training.
• the level of required clothing and required PPE.
• consistency for the level of marking of various equipment, for example, switchboards, panelboards, industrial control panels, and MCCs.
• the available flash energy on each piece of equipment. This energy is determined from available fault current, arc flash duration due to the type and degree of short circuit protection equipment.
Rockwell Automation
Services
Rockwell Automation understands the importance of you fulfilling the field arcflash hazard marking requirements as defined by Article 116.10 in the NEC.
Rockwell Automation may assist you in determining the necessary arc flash marking as required by NFPA 70E.
Rockwell Automation offers services that can provide assistance in the following areas:
•
Arc-flash hazard analysis
•
Providing input on the specific Bulletin 2100 MCC design being used
•
The zone determination for the NFPA 70E Hazard/Risk levels
•
Your required NEC field marking
For information regarding arc-flash hazard analysis, contact your local Rockwell
Automation sales office or distributor.
60 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Operator Handle and Unit Interlock
Chapter
6
The operator handle is an integral part of each MCC unit. Adjustment of the handle is not required. The operator handle is interlocked with each unit door as outlined by UL 845.
Defeating the Unit Door
Interlock
Refer to the following information for defeating the unit door lock.
Open the Door When the Operating Handle Is in the ON/I
Position
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
When the unit door is closed and the operator handle is in the ON/I position, a defeater screw must be deliberately operated to open the unit door (for example, opening the door of an energized unit).
The defeater screw is just below (on units with a vertically mounted operator handle) or just to the right (on units with a horizontally mounted operator handle) of the pivot point of the operator handle. To operate the defeater mechanism and defeat the door interlock while the operator handle is in the
ON/I position, use a flat-head screwdriver to turn the defeater screw clockwise one-eighth to one-quarter turn.
ATTENTION: Opening the door reduces arc flash safety.
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
Personal protective equipment (PPE) is not shown for clarity.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 61
Chapter 6 Operator Handle and Unit Interlock
Figure 27 - Operating Handle Defeater for Vertical Operator Handle
Figure 28 - Operating Handle Defeater for Horizontal Operator Handle
Defeating the Unit Interlock
Lever
Refer to the following information for defeating the unit interlock lever.
62 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Operator Handle and Unit Interlock Chapter 6
Energize a Unit with the Unit Door Open
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
Personal protective equipment (PPE) is not shown for clarity.
When the unit door is open and the operator handle is in the OFF/O position, the defeater lever must be deliberately lifted on the vertical handles or pushed to the left for horizontal handles, to move the operator handle to the ON/I position, and energize the unit.
Figure 29 - Defeater Lever for Vertical Operator Handle
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
Personal protective equipment (PPE) is not shown for clarity.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 63
Chapter 6 Operator Handle and Unit Interlock
Figure 30 - Defeater Lever for Horizontal Operating Handle
Locking Provisions
Refer to the following sections for locking provisions.
Lock Vertical Operating Handles in the OFF/O Position
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
To lock the small, medium, and large operator handle in the OFF/O position, put the shackle of the lock through the opening in the operator handle assembly. The opening can accommodate up to three padlocks.
Figure 31 - Locking Vertical Handles in OFF/O Position
64
Small and Medium Vertical Handle
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Large Handle
Operator Handle and Unit Interlock Chapter 6
Lock Horizontal Operating Handles in the OFF/O Position
Some units use a horizontal operating handle. The horizontal operating handle can be locked in the OFF/O position by putting the shackle of the lock through the open slotted area to the left of the operator handle.
Figure 32 - Locking a Horizontally Mounted Operating Handle in OFF/O Position
Lock Units with Operating Handles in the ON/I Position
ATTENTION: Locking an operating handle in the ON/I position may be in conflict with local codes and emergency shut down requirements.
Follow this procedure to lock the operator handle in the ON/I position.
1.
Drill out the hole to 3/8 in. (9.5 mm) diameter maximum.
2.
Insert the shackle of the lock.
The following instructions assume that the handle is in the ON/I position:
•
For units with small handles, the hole is in the upper portion of the operator handle assembly.
•
For units with medium and large operator handles, the hole is underneath the operator handle on the handle assembly.
•
For units with a horizontally mounted handle, the hole is on the left-hand side of the handle assembly.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 65
Chapter 6 Operator Handle and Unit Interlock
Figure 33 - Locking Small Handle in ON/I POSITION, Vertical Operating Handle
Drill Out
Figure 34 - Locking the Medium Handle in ON/I Position
Drill Out
66 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Operator Handle and Unit Interlock Chapter 6
Figure 35 - Locking Large Handle in ON/I Position
Figure 36 - Locking Horizontal Handle in ON/I Position
Drill Out
Unit Interlocks
A unit interlock is provided with each plug-in unit. Unit interlocks prevent units from being removed from or inserted into a vertical section when the operator handle is in the ON/I position.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 67
Chapter 6 Operator Handle and Unit Interlock
Units can also be locked out with a padlock preventing installation of the unit into a vertical section. The lockout feature of the unit interlock can be used with a padlock to keep the interlock in an extended position, which will prevent the unit from being inserted into an MCC section. The unit interlock can also be used with the unit installed in the section, but partially removed from the section.
In this position, the unit is partially removed from the MCC and the slot in the interlock plate is in line with the flange of the unit support pan above this unit.
When the unit is locked in this position, the unit power and ground stabs are disengaged. This position can be used to prevent insertion of a unit into the
MCC.
Figure 37 - Unit Interlock to Prevent Insertion - Vertical Operating Handler
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
We recommend that maintenance performed on the MCC units be performed away from the MCC in a suitable work area, when possible.
68 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Operator Handle and Unit Interlock Chapter 6
Figure 38 - Unit Interlock to Prevent Insertion - Unit Completely Withdrawn
In this position, the unit is partially removed from the MCC and the intermediate slot in the interlock plate is in line with the bushing in the unit support pan. When the unit is locked in this position, the unit power and ground stabs are disengaged. This position can be used to prevent insertion of a unit into the MCC.
Figure 39 - Unit Interlock to Prevent Insertion - Horizontal Operating Handle
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 69
Chapter 6 Operator Handle and Unit Interlock
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
We recommend that maintenance performed on the MCC units be performed away from the MCC in a suitable work area, when possible.
Figure 40 - Unit Interlock to Prevent Insertion - Unit Completely Withdrawn
70 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
7
Final Checklist Before Energizing
Introduction
This section provides guidance for the startup of a newly installed MCC.
We recommend making an itemized list including:
• serial number.
• number of sections.
• number of units and their corresponding voltage.
• current ratings.
• horsepower ratings
• types of circuits.
• fuse sizes.
• circuit breaker ratings and trip settings.
• heater elements requirements.
• arc resistant components.
• other important data.
The itemized list could be modeled after the MCC layout drawings supplied with each MCC. This itemized list should be saved in a file along with other data for the MCC such as, component manuals, heater element instructions, MCC manuals, and wiring diagrams. Blank sample forms are provided at the end of this chapter.
Pre-energizing Check
Procedure
The following procedures should be executed by a ‘qualified person’ as defined by
NEMA Standards Publication / No. ICS 2.3, Instructions for the Handling,
Installation, Operation and Maintenance of Motor Control Centers, Section 1 as follows:
1.4 Qualified Person
For the purpose of this guide, a qualified person is one who is familiar with the installation, construction and operation of the equipment and the hazards involved. In addition, he or she has the following qualifications:
1.4.1 Is trained and authorized to energize, de-energize, clear, ground and tag circuits and equipment in accordance with established safety practices.
1.4.2 Is trained in the proper care and usage of protective equipment such as rubber gloves, hard hat, safety glasses or face shields, flash clothing, etc., in accordance with established safety practices.
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Chapter 7 Final Checklist Before Energizing
Perform the Pre-energizing
Check Procedure
ATTENTION: To ensure the safety of personnel performing the preenergizing check, make sure the MCC remote power sources are disconnected and locked in the OFF/O position.
Using a voltmeter, verify that the MCC remote power sources are disconnected.
ATTENTION: Power factor correction capacitors (PFCCs) should be applied correctly. For application instructions refer to Power Factor
Correction Capacitors for Bulletin 2100 MCC Starter Units Application
Techniques, publication 2100-AT001 . When PFCCs are connected to the motor circuit and the start-up procedure requires the respective motors to be jogged, inched, or bumped (rotation direction check), temporarily disconnect PFCCs. For more information contact, Rockwell Automation LV
MCC Technical Support at 1.440.646.5800 and follow the prompts to
Allen-Bradley>Low Voltage Motor Control Centers>Post Shipment
Support.
ATTENTION: Verify that motor acceleration times are within specific application specifications.
Excessive starting currents and/or acceleration times may cause inverse time circuit breakers, power fuses, overload relays, and other components to overheat and/or shutdown equipment.
1.
Remove all blocks or temporary holding means used for shipping all component devices in the MCC.
2.
Inspect the enclosure and units for damage.
If structural damage is present, contact MCC technical support a t
1.440.646.5800 and follow the prompts to Allen-Bradley>Low Voltage
Motor Control Centers>Post Shipment Support. If no structural damage is visible, the electrical spacings should be intact. Refer to the tables starting on page 82 for the required minimum electrical spacings.
3.
Check and verify that the MCC is properly installed, as described in
, and inspect and verify that it is level, supported, and anchored.
4.
For MCCs with the 100 ms arc-resistant rating, check that clearance height is at least 12 in. (305 mm).
5.
Check the integrity of the bus splice connections.
Recommended torque values can be found on the information label on the interior of the vertical wireway door or on the interior right-hand side plate of frame mounted units. See Joining and Splicing Vertical Sections, publication 2100-IN010 , for splicing information.
72 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Final Checklist Before Energizing Chapter 7
The factory-made power bus connections are tightened by a computercontrolled torquing system. The following connections do not require retorquing:
• vertical to horizontal bus connections.
• power conductor to horizontal bus connections.
These factory-made horizontal to vertical bus connections do not require servicing for the life of the MCC.
6.
Check and verify that all ground connections are made properly, based on local standards.
If ground bus is not provided or has been removed, check that the MCC sections are connected to provide a continuous ground path. Verify that
100 ms units are connected to the vertical equipment load ground bus.
7.
Check the field wiring.
a. Check the field wiring for proper conductor sizing.
MCC field conductors should be sized by using the National Electrical
Code (NEC) 75 °C (167 °F) wire tables.
b. Removal of barrier or barriers may have been required for field wiring.
Check that all barriers and parts that may have been removed during installation have been reinstalled.
TIP We recommend that a barrier checklist is developed including such items as, unit location, and barrier location. This checklist should be saved for future reference.
c. Check that all incoming and outgoing power wiring is secure and braced to withstand the effects of a fault current as detailed in
. d. Check that conduit and cabling are well supported.
For incoming line compartments, 2.0 space factors, 26 in. (660.4 mm) or less, the incoming cables should be firmly secured halfway between the top of the section and the incoming line compartment terminals. In a full section (6.0 space factor) incoming line compartments the cables should be braced every 12 in. (305 mm); if the system’s available short circuit current is above 42,000 A but less than 65,000 A rms symmetrical. Above 65,000 A rms symmetrical available current bracing should occur every 6.5 in. (165 mm). This bracing is in accordance with the Underwriters Laboratories (UL) listing and is necessary to withstand forces resulting from high fault currents. For information on cable bracing methods, see
of this publication.
e. Check the integrity of all field connections.
Recommended torque values not found on individual devices can be found on the unit wiring diagrams.
f. Check field wired connections made to the MCC for agreement with wiring diagrams and verify that proper spacings between adjacent phases and/or phases to ground are being used. Refer to page 82 for the minimum electrical spacing requirements.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 73
Chapter 7 Final Checklist Before Energizing
8.
Check that the voltage and horsepower ratings on the motor correspond with the MCC unit ratings.
9.
Check that the overload relays or heater elements are selected, installed and/or adjusted to relative full load current shown on the motor rating nameplate.
10.
For applications requiring power fuses, install the fuses in the fusible switches in accordance with the NEC application requirements.
Refer to CENTERLINE Motor Control Centers Power Fuses Product
Data, publication 2100-TD003 for fuse information. Do not apply grease or NO-OX-ID to fuse ferrules.
All fuses must be completely inserted in the fuse clips. Recommended torque values for fuse clamp screws can be found on the unit wiring diagram. Verify that all fuses fit each application.
11.
For circuit breaker applications, verify that the circuit breakers are in accordance with NEC application requirements, and have correct ampacity and trip settings.
Refer to MCC Instantaneous Trip Motor Circuit Protectors (MCP) in
Combination NEMA Starter, Soft Starter (SMC), and Variable Frequency
AC Drive Units Technical Data, publication 2100-TD001 , and MCC
Inverse Time Circuit Breakers in Combination NEMA Starter, Soft
Starter (SMC), and Variable Frequency AC Drive Units Technical Data,
2100-TD002 for circuit breaker information in MCC units.
IMPORTANT High efficiency motors may have higher locked rotor and inrush currents, therefore, higher magnetic trip settings than those required equivalent standard motors may be required.
12.
Refer to the device instruction sheets or manuals supplied with the MCC for specific start-up guidance. Component devices in MCC units such as transfer switches, PFCCs, transducers, motor protectors, line monitors, over and under-voltage relays, and motor windings heaters may require unique start-up procedures. Set and verify adjustable current, voltage, and other settings, according to device instructions or wiring diagrams.
Allen-Bradley AC drives and soft starter units are shipped with preset factory settings such as ramp speed, current limits, switch positions, and readouts. Preset factory settings may not be suitable for many applications.
Refer to instruction manuals, supplied with the MCC for specific startup guidance.
ATTENTION: Verify that the parameters of configurable devices, such as drives, soft starters, and overload relays, are suitable for the specific application and change them as needed for the specific application.
74 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Final Checklist Before Energizing Chapter 7
13.
Manually exercise all switches, control auxiliary switches, circuit breakers, their respective operators, unit interlocks, trip mechanisms (test by pushing the ‘Push to Trip’ button), and any other operating mechanisms to verify proper operation.
14.
Check timing relay settings as required.
15.
Check the vents and fans.
a. Check all vents to ensure they are free from obstructions.
b. Check all fans, used for forced air cooling to ensure the shaft rotates without obstructions.
c. Check that filters are in place and clean, and set up an in-house program for scheduled cleaning or replacement.
If you have an MCC with arc-resistant design features, if a unit has been provided with arc resistant baffles over door vents and fans, these baffles must be fastened securely in place in order to maintain the arc resistant capabilities of the MCC. Do not install any type of filter in place of, or in addition to, the arc resistant baffles.
ATTENTION: Current transformer secondaries should not be
‘open’. To avoid possible injury and electrical shock to personnel, do not energize a current transformer with its secondary open.
16.
Check all current transformers for proper polarity and ensure their secondaries are not ‘open’, but are either connected to their respective devices or ‘shorted.’
17. Recheck that all barriers and parts that may have been removed during installation have been reinstalled. Refer to your barrier checklist, see step
18.
Before closing the enclosure and/or individual units, remove all tools, metal chips, scrap wire and other debris from the MCC interior.
If there is an accumulation of dust or dirt, clean out the MCC using a brush, vacuum cleaner or clean, lint-free rag. Do not use compressed air - it will redistribute contaminates on other surfaces.
ATTENTION: When conducting an electrical insulation resistance test, isolate equipment sensitive to high test voltages, such as meters, solid state devices, motor winding heaters, and capacitor units.
19.
Conduct an electrical insulation resistance test to verify the MCC wiring integrity.
Conduct this test using an insulation resistance tester (megger) with a potential of 500...1000V. This megger test should be conducted phase-tophase, phase-to-ground, and when applicable, phase-to-neutral on the
MCC buswork. The test should be conducted with all of the switches or circuit breakers in the open or OFF/O positions. Typical insulation resistance values are 50 M
Ω or greater.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 75
Chapter 7 Final Checklist Before Energizing
Next, check the field wiring; for example, motor cables and incoming line cables. Insulation resistance values are affected by temperature, humidity, or dampness, which may cause a considerably lower insulation resistance reading. If the insulation resistance values are below 1 M
Ω
(for example, affected by dampness, temperature, or humidity) or the MCC has been stored in a damp or humid area, we recommend that the equipment be dried out. Dry out the motor cables by injecting a low voltage current or by using space heaters.
Once the equipment is dry, repeat the insulation resistance test. The minimum value for insulation resistance on a new installation at startup or energizing is 1 M Ω . These readings may be recorded in the Megger
Reading Recording Table . This table allows for additional megger readings to be recorded during regular maintenance periods.
20.
Check that all arc-resistant parts are installed.
See ArcShield Components for more information.
21.
Check that all unit latches are secure.
See
Door Latch Position Diagrams for more information.
22.
Close and latch all doors, making certain that no wires are pinched.
23.
Check that all section closing plates are in place.
Certain applications may have latch requirements different from those provided.
If you have questions regarding proper latching, contact Rockwell Automation
LV MCC Technical Support at 1.440.646.5800 and follow the prompts to Allen-
Bradley>Low Voltage Motor Control Centers>Post Shipment Support.
Refer to the following illustrations for various latch placements.
76 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Door Latch Position Diagrams
Figure 41 - Vertical Wireway Door
Final Checklist Before Energizing Chapter 7
Standard Latches Arc Resistant Latches
0.5 Space Factor
Figure 42 - 0.5 Space Factor and Units with Horizontal Disconnect Handles
1 Space Factor or Larger
Standard Latches Arc Resistant Latches
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 77
Chapter 7 Final Checklist Before Energizing
Figure 43 - 1.0 Space Factor and Units with Vertical Disconnect Handles
1 Space Factor to 2.5
Space Factor
2.5 Space Factor or
Larger
An arc resistant latch is used for the center latch only for main incoming power units and 100 ms arc-resistant rating.
Standard Latches Arc Resistant Latches
For most units, the center latch is a standard quarter-turn latch. For some units a multi-turn latch is used.
Torque the latch to 20 lb•in +/- 2 lb•in.
78 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Final Checklist Before Energizing Chapter 7
Figure 44 - 6 Space Factor (full section) Units
An arc resistant latch is used for the second and fourth positions. Other latches are standard quarter turn.
All center latches are arc-resistant latches for units with 100 ms arcresistant rating.
Standard Latches Arc Resistant Latches
When properly latched, the slots on all arc resistant latches are vertical and the latch springs are compressed. The spacing of the spring coils are decreased.
Figure 45 - Spring Compression
Uncompressed Spring Compressed Spring
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 79
Chapter 7 Final Checklist Before Energizing
ArcShield Components
Checklist
ATTENTION: Arc resistant CENTERLINE 2100 MCCs are provided with certain components to achieve the arc-resistant rating. These components must be in place prior to using the MCC in order to maintain the arc resistant capabilities.
TIP Not all of the components and features necessary for the arc-resistant rating are shown in these images.
Figure 46 - Arc-resistant MCC with Insulating Sheet (15 in. deep, right side visible)
Insulation Sheet
End Closing Plate
80 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Pressure Relief Vent
(100 ms ArcShield rating only)
WARNING
HOT GASES MAY BE EXHAUSTED IF AN INTERNAL
ARCING FAULT OCCURS.
41006-404-01 (1)
ArcShield Door Latches
Figure 47 - ArcShield Components
Final Checklist Before Energizing Chapter 7
Vertical Support Angle
(end of lineup)
Support Pan Screws
ArcShield Rating Label
100 ms Rating
Device Limited
Rating
ARC RESISTANT EQUIPMENT
PER IEEE C37.20.7-2007
ACCESSIBILITY:
TYPE 2
ARC SHORT CIRCUIT CURRENT:
ARC DURATION: ≤
100 ms
OPERATIONAL VOLTAGE
:
≤
≤
480 V
65 kA
WARNING
ARC FLASH HAZARD
DOORS AND COVERS MUST BE PROPERLY
CLOSED, LATCHED, AND SECURED.
EQUIPMENT MUST BE INSTALLED PER
MANUFACTURER’S INSTRUCTIONS. REFER TO
PUBLICATION 2100-IN012.
ONLY INSTALL ArcShield 100ms / 480V / 65kA
RATED UNITS IN THIS STRUCTURE.
EQUIPMENT WILL NOT FUNCTION AS
ARC RESISTANT IF ABOVE GUIDLINES
ARE NOT FOLLOWED.
FAILURE TO FOLLOW THESE GUIDELINES COULD
RESULT IN SEVERE INJURY OR DEATH.
41006-402-01 (1)
ARC RESISTANT EQUIPMENT
PER IEEE C37.20.7 2007
ACCESSIBILITY : TYPE 2
ARC SHORT CIRCUIT CURRENT :
≤
ARC DURATION : DEVICE LIMITED
65 kA
PROTECTIVE DEVICE :
UL LISTED FUSES
1200 A
CLASS J – ANY FUSE
600 A
≤ 600 A
UL LISTED MOLDED CASE CIRCUIT BREAKERS
ALLEN-BRADLEY – BULLETIN 140U, FRAME I, JD, or K
CUTLER-HAMMER – SERIES C, FRAME F, J, K, L, M, or N
WARNING
ARC FLASH HAZARD
THE ARC CONTAINMENT CAPABILITY OF THE MOTOR
CONTROL CENTER IS DEPENDENT UPON THE MAIN
PROTECTIVE DEVICE. PROTECT ONLY WITH UL LISTED
PROTECTIVE DEVICE SPECIFIED ABOVE.
DOORS AND COVERS MUST BE PROPERLY CLOSED,
LATCHED, AND SECURED. EQUIPMENT MUST BE INSTALLED
PER MANUFACTURER’S INSTRUCTIONS.
REFER TO PUBLICATION 2100-IN012.
EQUIPMENT WILL NOT FUNCTION AS ARC RESISTANT IF
ABOVE GUIDELINES ARE NOT FOLLOWED.
FAILURE TO FOLLOW THESE GUIDELINES COULD RESULT IN
SEVERE INJURY OR DEATH.
41006-401-01 (1)
Vertical Wireway Baffle
Top and Bottom Horizontal
Wireway U-nuts
Frame-mount Support
Support Brackets
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Back Corner Baffles
(end of lineup only)
81
Chapter 7 Final Checklist Before Energizing
Required Minimum
Electrical Spacing
.
Table 7 - General Spacing Requirements for MCCs
(1) (2) (3)
Voltage
125 or less
126...250
251...600
Min Spacing, in. (mm)
Between Live Parts of Opposite Polarity
Through Air
1/2 in. (12.7 mm)
3/4 in. (19.1 mm)
1 in. (25.4 mm)
Over Surface
3/4 in. (19.1 mm)
1.25 in. (31.8 mm)
2 in. (50.8 mm)
Between Live Parts and
Grounded Metal Parts,
Through Air and Over
Surface
1/2 in. (12.7 mm)
1/2 in. (12.7 mm)
1 in. (25.4 mm)
(4)
(1) Reference Underwriters Laboratories, Inc. Standards for Motor Control Centers, UL 845, Tables 16.1 and 16.3.
(2) Spacings at all horizontal and vertical buses, at incoming terminals, at the plug-in portion of all units and at feeder units consisting of fusible disconnect switches or circuit breakers only, having other than horsepower ratings, shall be as specified above. (See 17.2.2 from UL 345.)
(3) An isolated dead metal part, such as a screw head or a washer, interposed between uninsulated live parts of opposite polarity or between an uninsulated live part and grounded dead metal is considered to reduce the spacing by an amount equal to the dimension of the interposed part along the path of measurement.
(4) A through-air spacing of not less than 1/2 in. (12.7 mm) is acceptable at a circuit breaker or fusible disconnecting means and between grounded dead metal and the neutral of a 277/480V, three-phase, four-wire
MCC.
Table 8 - Spacing Requirements within MCC Units
(1) (2) (3)
Voltage
125 or less
126...250
251...600
Min Spacing, in. (mm)
Between Uninsulated Live Parts of
Opposite Polarity and Between an
Uninsulated Live Part and an Exposed or
Uninsulated Dead Metal Part other than the Enclosure
Between Uninsulated Live
Parts and the Walls of a Metal
Enclosure
(3)
, Including Fittings for Conduit or Armored Cable
Through Air
1/8 in. (3.2 mm)
(2)
1/4 in. (6.4 mm)
3.8 in. (9.5 mm)
Over Surface
1/4 in. (6.4 mm)
3.8 in. (9.5 mm)
1/2 in. (12.7 mm)
Shortest Distance
1/2 in. (12.7 mm)
1/2 in. (12.7 mm)
1/2 in. (12.7 mm)
(1) Reference Underwriters Laboratories, Inc. Standards for Motor Control Centers, UL 845, Tables 16.1 and 16.3.
(2) The spacing between wiring terminals of opposite polarity shall not be less than 1/4 in. (6.4 mm) if the terminals are in the same plane.
(3) The enclosure refers to the section enclosure.
A metal piece attached to the enclosure is considered a part of the enclosure for the purpose of this note if deformation of the enclosure is likely to reduce the spacing between the metal piece and a live part.
82 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Final Checklist Before Energizing Chapter 7
Figure 48 - Sample MCC Layout Worksheet
Horizontal Wireway
1.0 S.F.
113 in.
(330 mm)
K
L
M
H
J
F
G
A
B
C
D
E
1A
1E
1G
Horizontal Wireway
2A
Full
Width
Section
Table 9 - Location of Sample Units within above MCC Layout
Unit Data
1A
1E
1G
2A
Cat. No.
2113B-EDB-48CA
2112A-BDBD-24J-38-7FEC1A
2100-NJ30
2113B-2PAB-56WT
Wiring Diagram
CSXXXXXXXX
Y-XXXXXX
N/A
Y-XXXXXX
4
1
FVNR
FVNR
77
4.8
— Blank —
450A FVNR(V) 364
60
3
—
250
W73
7FECIA
—
W43
—
—
—
—
C
—
—
6
—
10
—
—
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 83
Chapter 7 Final Checklist Before Energizing
Table 10 - Unit Description
METER
NCP
NLD
PLC
RVAT
SMC
SPD
TERM
TS1W (R)
TS2W (R)
VFD (VT)
VFD (CT)
VFDR
XFMR
FVR
FVNR (V)
INSRT
LPAN
(M)BPS
(M)CB
(M)FDS
(M)LUG
Unit Type Code
CN2DN
DNC
DNPS
EN2DN
FCBX
FDSX
FVLC
Code Description
ControlNet to DeviceNet
DeviceNet Connector
DeviceNet Power Supply
Ethernet to DeviceNet
Insert with Circuit Breaker
Insert with Fusible Disconnect
Full Voltage Lighting Contactor
Full Voltage Reversing
Full Voltage Non-Reversing (Vacuum)
Unit Insert
Lighting Panel
MAIN Bolted Pressure Switch
MAIN Circuit Breaker
MAIN Fusible Disconnect Switch
MAIN Line Lugs
Metering Unit
Neutral Connection Plate
ControlNet to DeviceNet
Programmable Logic Controller
Reduced Voltage Autotransformer
Solid State Motor Controller
Surge Protection Device
Terminal Unit
Two-Speed One Winding (Reversing)
Two-Speed Two Winding (Reversing)
Variable Frequency Drive (Variable Torque)
Variable Frequency Drive (Constant Torque)
Variable Frequency Drive Supplemental Unit
Transformer
84 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Final Checklist Before Energizing Chapter 7
Table 11 - MCC Layout Worksheet
MCC Name / Number
___________________________________________________________
Unit Data
Cat. No.
Wiring Diagram
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 85
Chapter 7 Final Checklist Before Energizing
Table 12 - Megger Reading Recording Table
MCC Name / Number
___________________________________________________________
Date
Circuit / Unit
Name / Number
Phase-to-Phase
A - B B - C C - A
Phase-to-Ground Phase-to-Neutral
A - Grd.
B - Grd.
C - Grd.
A - Neut.
B - Neut.
C - Neut.
86 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
8
Energizing the Equipment
Energize the Equipment
ATTENTION: This procedure is provided as general guidance for energizing a newly installed CENTERLINE MCC and should be used after the Final Check procedure has been completed. See
for more information.
ATTENTION: Energizing a MCC for the first time is potentially dangerous.
Serious damage and or personal injury can result when power is applied.
Therefore, only qualified personnel should energize the equipment.
ATTENTION: When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
1.
Review any additional instructions supplied for the proper operation of special units such as variable frequency drives and soft starters with appropriate and qualified personnel.
2.
Check that there is no load on the MCC when it is energized.
3.
De-energize all main and unit disconnect devices.
4.
Check to see if any associated remote devices are de-energized.
5.
Energize the MCC remote power source.
ATTENTION: The disconnect-device handles should be operated with a firm, direct motion. Handles should not be ‘teased’ into the closed (ON/I) position.
6.
Energize the main devices followed by the feeder devices and the branch circuit devices.
Always energize from the source of the system, working towards the loads.
7.
After all of the disconnects have been closed, loads such as lighting circuits, motor starters, and contactors may be energized.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 87
Chapter 8 Energizing the Equipment a. When power-factor correction capacitors are energized with the motor windings and the start-up procedure requires that the respective motors be jogged or inched, temporarily disconnect the power factor correction capacitors.
For more information on power factor capacitors and MCC units, refer to the Power Factor Correction Capacitors for Bulletin 2100 Motor
Control Center Starter Units Application Techniques, publication
2100-AT001 .
b. Verify that any acceleration times are within application specifications.
Excessive starting currents and acceleration times may cause inverse time circuit breakers, power fuses, overload relays, and other components to overheat and shut down the equipment.
88 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
9
Maintenance
Establish a periodic maintenance program for MCCs to avoid unnecessary downtime. The frequency of service to the MCC will depend upon the equipment usage and the environment in which it operates. The following is a suggested checklist and can be used to establish a maintenance program.
ATTENTION: De-energize the MCC before servicing.
Maintain the MCC
1.
Inspect the MCCs once per year or per established maintenance program.
2.
Carefully inspect doors and enclosure sides for evidence of excessive heat.
3.
Check for moisture or any signs of dampness or drippings inside the
MCC.
IMPORTANT Condensation in conduit or dripping from an outside source is a common cause of MCC failure. Eliminate any source of moisture.
a. Seal off conduit, cracks, and openings that have allowed and/or could allow moisture to enter the MCC enclosure. b. Dry or replace and clean insulating material that is damp or wet or shows signs of moisture. c. Check devices such as contactors, circuit breakers, disconnect switches, relays, and push buttons for wetness or signs of moisture, corrosion, or contamination. d. Replace damaged or malfunctioning parts.
4.
Check the integrity of bus splice connections.
Bus splices can be easily identified by the label on the interior of the vertical wireway door or on the interior right-hand side plate of frame mounted units. Recommended torque values can be found on the information label on the interior of the vertical wireway door or on the interior right-hand side plate of frame mounted units.
The factory-made power bus connections are tightened by a computercontrolled torquing system. The following connections do not require retorquing, vertical to horizontal bus connections and power conductor to horizontal bus connections. These factory-made connections do not require servicing for the life of the MCC.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 89
Chapter 9 Maintenance
90
5.
Periodically clean or replace the air filters depending on the environmental conditions.
6.
Check for the proper function and freedom of movement (no sticking or binding) for the disconnect handle operating and defeater mechanisms.
7.
Replace broken, deformed, malfunctioning, or badly worn parts or assemblies.
8.
Inspect unit bus-stab connections for wear or corrosion.
Wear and/or corrosion can increase resistance and cause an increased temperature of the contact point, leading to failure. Replace bus stabs if wear or corrosion is excessive. Lubricate bus stabs with NO-OX-ID grease
(catalog number 2100H-N18 or 2100H-N18T) before installing the unit into the section.
ATTENTION:
When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA
70E Standard for Electrical Safety in the Workplace.
To prevent injury or death to personnel lubricating disconnect switch contacts, make sure the MCC power source(s) is disconnected and the respective disconnect(s) is locked in the OFF/O position. For plugin units, remove the unit from the MCC.
To prevent personal injury or damage to equipment, make sure that the unit handle operator is in the OFF/O position before removing the unit.
9.
Inspect current carrying parts such as fuse clips, knife blades of disconnects, and line and load terminals of devices for discoloration, corrosion, or other signs of wear or possible failure.
10.
Check locking or interlocking devices for proper working condition.
11.
Adjust, repair, or replace any device if necessary.
12.
Check power contacts for excessive wear and dirt accumulation and vacuum or wipe contacts with a soft cloth to remove dirt as needed.
Contacts are not harmed by discoloration and slight pitting. Contacts should never be filed, as this could reduce the life of the contacts. Contact spray cleaners should not be used, as they cause sticking on magnetic pole faces or in operating mechanisms, interfering with the electrical continuity of the contacts. Contacts should be replaced only after the silver has become badly worn. Always replace contacts in complete sets to avoid misalignment and uneven contact pressure.
13.
Check for loose wire connections on power and control circuit terminals.
Loose connections can cause overheating, hot spots, or arcing faults that could lead to equipment malfunction or failure. Replace any damaged parts or wiring.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Maintenance Chapter 9
14.
Check contactor and relay coils for evidence of overheating, such as cracking, melting, or burning of insulation.
If there is evidence of overheating, the coil must be replaced. When replacing a coil, check and correct the overvoltage or undervoltage conditions that may have caused the coil failure. Be sure to clean any residue of melted coil insulation from other parts of the device and replace as necessary.
15.
Check all pilot lights and replace lamps and damaged lenses as necessary.
16.
Check all fuses.
If replacing fuses, install the same type and rated fuse that was originally furnished with the MCC.
17.
Remove accumulated dust and dirt from structure and individual units by vacuuming.
Do not use compressed air, as it may contain moisture and blow debris within the enclosure.
18.
Refer to individual user policies, NFPA 70B, Recommended Practice for
Electrical Equipment Maintenance for MCC Servicing Guidelines.
Disconnect the Switch and
Contact Lubrication
ATTENTION:
Follow NFPA 70E safety guidelines when working on energized equipment.
To prevent injury or death to personnel lubricating disconnect switch contacts, make sure the MCC power source(s) is disconnected and the respective disconnect(s) is locked in the OFF/O position. For plug-in units, remove the unit from the MCC.
To prevent personal injury or damage to equipment, make sure that the unit handle operator is in the OFF/O position before removing the unit.
If a switch that is used frequently becomes difficult to operate or is in a highly corrosive or caustic environment, it may require lubrication. The lubricant to be used is NO-OX-ID Compound (catalog number 2100H-N18 for a 1 pt can or catalog number 2100H-N18T for a 1 oz tube). To obtain the lubricant, contact your local Rockwell Automation Sales Office, distributor or Rockwell
Automation.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 91
Chapter 9 Maintenance
1.
Determine your unit type.
Plug-in Units
If a disconnect switch requires lubrication and is housed in a plug-in unit,
remove the plug-in unit from the MCC (For removal of unit, refer to 4
,
Installing and Removing Plug-in Units
, before lubricating the switch).
Frame Mounted Units
If a disconnect switch requires lubrication and is housed in a frame mounted unit, turn off the power sources to the MCC so the switch can be lubricated.
ATTENTION: To prevent injury or death to personnel lubricating disconnect switch contacts, make sure that the MCC remote power sources are disconnected and the respective disconnects are locked in the OFF/O position.
Save all parts for reinstallation.
2.
Remove the line guard from the disconnect.
3.
For access to the disconnect's stationary contacts, remove the arc hood.
4.
Generously apply the NO-OX-ID compound (sufficient enough to cover with a noticeable film) to both sides of the movable contact blades and to the adjacent insides stationary contacts and the hinge.
5.
Reinstall the arc hood that was removed in step 3 .
6.
Reinstall the line guard cover that was removed in step 2 .
7.
If the lubricated disconnect switch is housed in a plug-in unit, reinstall the unit.
For installation of unit, refer to Installing Units with Vertical Operating
Handles, publication 2100-IN014 .
If the unit requires lubrication because of corrosion (for example, a sulfuric environment), replacing the unit disconnect may be required to avoid overheating conditions. Lubrication may temporarily resolve overheating, however replacing the disconnect switch would be the ideal, long-term solution.
92 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Maintenance Chapter 9
Use Thermal Infrared or
Other Temperature
Measurement Techniques for Preventive Maintenance
ATTENTION:
Temperature measuring techniques are often performed with the units fully energized and the doors and covers open.
Use extreme caution when performing these measurements so that energized parts are not shorted.
If care is not taken, electrical shock, severe injury or death will result.
When working on or near energized electrical equipment, follow established electrical safety-related work practices. Refer to NFPA 70E Standard for
Electrical Safety in the Workplace.
Use the following procedure when using thermal infrared or other temperature measurement techniques as part of a periodic preventative maintenance program on CENTERLINE 2100 Low Voltage MCCs.
1.
Use test equipment to determine the temperature differential and the temperature rise of accessible components within the unit.
2.
Determine the services and repair recommendations based on the temperature category in the following guidance chart.
Table 13 - Temperature Guidance
Category
1
2
3
4
Temperature
Differential
(1)
°C
< 10°
°F
< 18° < 70°
°C
Temperature
Rise
(2)
< 126°
°F Service Interval
No service or repair required.
Repair/Service
Recommended Action
See step 1 below.
10°...25° 18°...45° 70°...100° 126°...180° Service or repair the unit at next maintenance schedule (not greater than six months but continue monitoring as a part of preventive maintenance.)
See step 2 below.
25°...50° 45°...90° 100°...115° 180°...207° Service or repair the unit within the next two weeks and monitor the unit at the next maintenance interval.
> 50° > 90° > 115° > 207° Shutdown the unit and repair. Verify that the temperature is reduced after re-energization.
(1) Temperature (measured or rise) differential between adjacent phases or like elements. Load between phases must be balanced with a normal variation not exceeding seven percent.
(2) Measured temperature less ambient.
Due to difficulty obtaining accurate infrared temperature measurements from highly reflective surfaces, we recommend using temperature differential readings in determining the Service/Repair guidelines, for example, emissivity of tin or silver plated material.
Inspect the Units for Signs of Overheating
1.
If there are no signs of overheating and thermal infrared tests indicate service is not necessary, document the units as acceptable.
Use this information for reviewing the mean time to maintenance for preventative maintenance for the specific facility.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 93
Chapter 9 Maintenance
94
ATTENTION:
To service the units, make sure that the MCC remote power sources are disconnected and that the respective disconnects are locked in the OFF/O position.
If servicing a plug-in unit, remove it from the MCC to facilitate
servicing. Refer to Chapter 2 of this publication for unit removal
guidelines.
When plugging units back in, refer to CENTERLINE 2100 Motor
Control Centers (MCC) Units with Vertical Operating Handles
Installation Instructions, publication 2100-IN014 , and CENTERLINE
2100 Motor Control Center (MCC) Units with Horizontal Operating
Handles Installation Instructions, publication 2100-IN060 .
2.
If there are no signs of overheating, but thermal infrared tests indicate service is required, check the power connections for proper torque. a. On disconnect switches, service the knife blades with a Scotch-Brite cleansing pad.
b. Remove all hardened grease.
Care should be taken not to distort the disconnect jaw (stationary contact). c. Lubricate with a fine film of NO-OX-ID (catalog number 2100H-N18 for a 0.47 L (1 pt) can, or catalog number 2100H-N18T for a 29.5 ml
(1 oz) tube).
Should the disconnect be subject to environmental conditions causing chronic tarnishing, it may be necessary to determine if there is an incompatibility in the plating material, for example, hydrogen sulfide and silver plating.
On fuses and fuse clips, service by polishing with a Scotch-Brite cleansing pad. Do not lubricate the fuses or the fuse clips.
3.
If overheating has occurred as indicated by severe tarnishing, infrared test results, crystallization of insulation on conductors, discoloration of the components, darkening of the molding materials, brittle conductor insulation, or deformation and melting of parts, replace the components that are suspect.
For more information contact, Rockwell Automation LV MCC Technical
Support at 1.440.646.5800 and follow the prompts to Allen-Bradley>Low
Voltage Motor Control Centers>Post Shipment Support.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Maintenance After Fault Condition
Chapter
10
Maintain the MCC After a
Fault Condition
ATTENTION: Make sure that the MCC remote power sources are disconnected and that the respective disconnects are locked in the OFF/O position.
The opening of the short circuit protective device (such as fuses or circuit breakers) in a properly coordinated motor branch circuit is an indication of a fault condition in excess of operating overload and must be corrected.
Fault conditions can cause damage to control equipment. When a fault occurs, follow this procedure.
1.
De-energize the MCC.
2.
Investigate the cause of the fault and inspect all equipment thoroughly per
NEMA Standards publication ICS 2.3-1995, Instructions for the handling installation operator and maintenance of MCCs not rated more than
600V, Section 11, Maintenance after a Fault has Occurred.
3.
Make necessary repairs to units, components and structures as required, prior to reenergizing the equipment.
Be sure that replacement parts are suitably rated for the application.
An insulation resistance test (megger) may be required. Refer to
.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 95
Chapter 10 Maintenance After Fault Condition
Notes:
96 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Order Information
Chapter
11
Renewal Parts
A Renewal Parts Stocking Program for MCCs is recommended in conjunction with a maintenance program. This is important for minimizing expensive downtime and to be able to facilitate critical repairs.
Factors to consider when developing an effective Renewal Parts Stocking
Program include the following:
•
The frequency of ON-OFF cycling and the amount of ON or operating time.
•
The need for items such as continuous operation, inherent design limitations, and environmental considerations.
•
The total number of similar devices supplied as original equipment within the MCC.
•
Individual user policies governing spare parts.
Consideration should also be given to stocking complete units when the job site is in an area remote from a distributor or district sales office or when it is critical to maintain continuous operation of a system.
The following information is required when ordering renewal parts:
•
Description of part or unit
•
Series letter
•
Part or catalog number
•
Quantity
•
Shipping address
•
MCC serial number and complete nameplate data
Refer to
, Parts Illustration, for pictures and descriptions of common section and unit parts.
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 97
Chapter 11 Renewal Parts
Notes:
98 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Chapter
12
Parts Illustrations
Typical Section
Construction
Lifting Angle
Top Horizontal
Wireway Baffle
Removable Top Plate
Top Horizontal
Wireway Cover
Left Hand
Top End Closing Plate
Right Hand Unit Support
Vertical Wireway Assembly
Bus Splice Access Cover
Horizontal and Vertical
Bus Support
Vertical Power Bus
Section Nameplate
Horizontal Power Bus
Left Hand
Center End Plate
Vertical Plug-in
Ground Bus
Vertical Wireway Door
Vertical to Horizontal Bus
Connection Access Cover
Vertical Bus Support Cover
Unit Support Pan
Left Hand Side Plate Assembly
Horizontal Ground Bus
Top or Bottom
Left Hand
Bottom End Closing Plate
Sealing Strap
Top and Bottom
Bottom Support Angle
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Bottom Horizontal
Wireway Cover
99
Chapter 12 Parts Illustrations
Typical Construction of a Unit with a Vertical Operating Handle
Captive Latch
Diagram Pocket
Starter or Contactor
Unit Stab Assembly
Control Circuit
Fuses and
Fuse Block
Auxiliary
Contacts
Overload
Control Circuit
Transformer (not shown)
Control Transformer
Fusing and Fuse Block
Power and Control
Terminal Blocks
Unit Identification Nameplate
Captive Latch
Unit Nameplate
UL Label
Unit Handle Interlock
Circuit Breaker or Fusible
Disconnect (shown)
Disconnect Handle
Defeater Mechanism
Short Circuit Rating Label
Control Station
Handle Cutout
Unit Door
Reset Button
Pilot Devices
Unit Support Pan
Plastic Retaining Pin
Bulletin 2112, Size 1, FVNR with Transformer Shown
100 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Parts Illustrations Chapter 12
Typical Construction of a Half Space Factor Unit with a Horizontal Operating Handle and Door Mounted Pilot Devices
Control Circuit Transformer
Unit Stab Assembly
Contactor or Starter
Overload Relay
Circuit Breaker (shown) or Fusible Disconnect
Control Circuit Fuse block and Fuses
Handle Mechanism
Unit Latch/Interlock
Unit Nameplate
Starter
Control Terminal Block
Unit Door
Pilot Devices
Unit Support Pan
Unit Support Pan Bushing Plastic Retaining Pin
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 101
Chapter 12 Parts Illustrations
Typical Construction of a Unit with a Horizontal Operating Handle
Control Circuit Transformer Unit Stab Assembly Contactor or Starter
Overload Relay
Circuit Breaker (shown) or Fusible Disconnect
Control Circuit Fuse block and Fuses
Handle Mechanism
Unit Latch/Interlock
Control Terminal Block
Pilot Devices
Auxiliary Contacts
Unit Nameplate
Unit Door
Unit Support Pan
102
Unit Support Pan Bushing
Plastic Retaining Pin
Bulletin 2413, IEC Style Shown
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Index
A
adding sections
additional resources
air filter check
air filters
altitude class
arc flash
protection marking requirement
Rockwell Automation services
ArcShield
components checklist
door hinge removal
door latch positions
IEEE
insulating sheet
joining and splicing
opening door
pressure relief plate
rating
rating label
section clearance
support pan removal
top entry conduit
unit removal
B
bottom entry conduit
bus splice check
bus torque specifications
bus-stab check
C
cable installing
lugs
rating
cable bracing
glass tape
hardwood
nylon rope
check air filters
bus splice
bus stabs
cabling
circuit breakers
conduit
contactor and relay coils
disconnect handle
fuses
interlocking devices
locking devices
moisture
pilot lights
power contacts
wiring
check list
circuit breaker
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 conduit
bottom entry
top entry
contactor and relay coil check
cUL designation
D
defeater lever
defeating unit door interlock
dimensions
disconnect handle check
door latch positions
door removal
dust and dirt
E
electrical insulation resistance test
electrical spacing
end closing plate
energize the MCC
energize unit door open
F
flash protection
fuse check
G
general description
general spacing requirements
grounding
H
handle height
handling
height considerations
horizontal bus
splicing
horizontal handle
door interlock defeater screw
swing-out door latches
horizontal handle removal
I
incoming line brace
inspection timeline
installation
cable
conduit
horizontal handle
103
Index
104 lugs
plug-in units
vertical handle
interlocking devices check
J
joining and splicing
bus torque
joining and splicing NEMA Type 12 motor control centers
joining and splicing NEMA Type 3R and Type
4 units
L
labels
ArcShield
short circuit rating
UL
layout worksheet
lifting angle
lifting sections
line compartment
location planning
locking horizontal handle
horizontal operating handle
large vertical handle
medium vertical handle
padlock
small vertical handle
units
vertical operating handle
locking device check
section installation
securing
seismic requirements
storage
weights
MCC receiving, handling, and storage
measuring temperature
moisture check
mounting dimensions
10 in. wide
15 in. and 20 in.
15 in. and 20 in. corner sections
15 in. and 20 in. deep 40 in. wide
25 in.
30 in. and 40 in.
9 in. wireway
NEMA 3R
NEMA 4
mounting dimesions
71 in. sections
N
nameplate
NFPA 70E
O
operating handle locking the horizontal operating handle in the
OFF/O position
locking the units with the operating handle in the ON/I position
locking the veritical operating handle in the
OFF/O position
opening the door when the handle is in the
ON/I position
operation
order information
M
main disconnect
bottom entry connection
top entry connection
maintaining the MCC
MCC after a fault condition
overview
dimensions
energizing
joining and splicing exisiting motor control centers
joining and splicing NEMA Type 12 motor control centers
joining and splicing NEMA Type 3R and Type
4 units
joining and splicing new motor control centers
maintenance
mounting
mounting dimensions
operation
product construction
P
pilot light check
plug-in unit
plug-in unit removal horizontal operating handle
vertical operating handle
power contacts check
power-factor correction capacitors
pre-energizing check procedure
pre-energizing checklist
preparing MCC
product overview
publications
pull boxes
Q
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
qualified persons
R
rearranging sections
receiving
removing large units
renewal parts
S
sections adding
installation
lifting
numbering
rearranging
seismic requirements
bolt down
IEEE 344
weld down
sequence numbering
series lettering
number and series ID
shipping weights
export
standard
short circuit rating label
sections
units
shutters
space factor
spacing requirements within the MCC
storage
support
support pan removal
ArcShield
swing-out door latches
switch lubrication
T
temperature guidance
measurement
test electrical insulation resistance
top entry conduit
U
UL label
UL/CSA marking
unit construction
description
door removal
horizontal handle removal
interlock
interlock lever
latches
overheating
partially removed and locked
removal
removed and locked
space factor
type
vertical handle removal
unit door interlock
unit interlock
unit removal
using a padlock
V
vertical bus
vertical handle
vertical handle unit removal
W
weights
wiring
integrity
Index
Rockwell Automation Publication 2100-IN012D-EN-P - September 2010 105
Index
106 Rockwell Automation Publication 2100-IN012D-EN-P - September 2010
Rockwell Automation Support
Rockwell Automation provides technical information on the Web to assist you in using its products.
At http://www.rockwellautomation.com/support/ , you can find technical manuals, a knowledge base of FAQs, technical and application notes, sample code and links to software service packs, and a MySupport feature that you can customize to make the best use of these tools.
For an additional level of technical phone support for installation, configuration, and troubleshooting, we offer TechConnect support programs. For more information, contact your local distributor or Rockwell Automation representative, or visit http://www.rockwellautomation.com/support/ .
Installation Assistance
If you experience a problem within the first 24 hours of installation, review the information that is contained in this manual.
You can contact Customer Support for initial help in getting your product up and running.
United States or Canada
Outside United States or
Canada
1.440.646.3434
Use the Worldwide Locator at http://www.rockwellautomation.com/support/americas/phone_en.html
, or contact your local Rockwell Automation representative.
New Product Satisfaction Return
Rockwell Automation tests all of its products to ensure that they are fully operational when shipped from the manufacturing facility.
However, if your product is not functioning and needs to be returned, follow these procedures.
United States
Outside United States
Contact your distributor. You must provide a Customer Support case number (call the phone number above to obtain one) to your distributor to complete the return process.
Please contact your local Rockwell Automation representative for the return procedure.
Documentation Feedback
Your comments will help us serve your documentation needs better. If you have any suggestions on how to improve this document, complete this form, publication RA-DU002 , available at http://www.rockwellautomation.com/literature/ .
Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: +90 (216) 5698400
Publication 2100-IN012D-EN-P - September 2010 108
Supersedes Publication 2100-IN012C-EN-P - April 2009
PN-
93799
Copyright © 2010 Rockwell Automation, Inc. All rights reserved. Printed in the U.S.A.
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