Instruction Leaflet
IL29C146C
Effective August 2011
Supersedes IL 29C146B Dated 6/96
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
Contents
Description Page
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Instruction Leaflet IL29C146C
Effective August 2011
WARNING
CONTACT ENERGIZED EQUIPMENT CAN
RESULT IN DEATH, SEVERE PERSONAL INJURY, OR
SUBSTANTIAL PROPERTY DAMAGE. DO NOT
ATTEMPT TO INSTALL OR PERFORM
MAINTENANCE ON EQUIPMENT WHILE IT IS
ENERGIZED. ALWAYS VERIFY THAT NO VOLTAGE IS
PRESENT BEFORE PROCEEDING THE TASK,
AND ALWAYS FOLLOW GENERALLY ACCEPTED
SAFETY PROCEDURES.
EATON NOT LIABLE FOR THE MISAPPLICATION
OR MISINSTALLATIONOF ITS PRODUCTS.
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
1.
INTRODUCTION
The user is cautioned to observe all recommendations, warnings, and cautions relating to the safety of personnel and equipment as well as all general and local health and safety laws, codes, and procedures.
The recommendations and information contained herein are based on Eaton experience and judgement, but should not be considered to be all every application or circumstance which may arise. If any questions arise, contact Eaton for further information or instructions.
Fig. I I Shunt in L-Frame Circuit Breaker
GENERAL INFORMATION
The shunt trip (Fig.
1-1) provides remote controlled electrical tripping for the circuit breaker. It consists of an intermittent rated solenoid with a tripping plunger and a cutoff switch attached to a plug-in module. The plug-in module is mounted in slots in the top of the trip unit and occupies the accessory cavity in the circuit breaker frame. When the solenoid is energized, the plunger extends and presses against an intermediate plunger which operates the trip bar in the trip unit. As the circuit breaker trips, the molded crossbar presses against the cutoff switch operating arm to open the cutoff switch, disconnecting power to the solenoid and preventing coil burn out.
2 EATON CORPORATION www.eaton.com
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
WARNING
IF ENERGY IS APPLIEDTO SHUNT TRIP LEADS,DO
NOT ATTEMPT TO RESET ANDCLOSETHE CIRCUIT
BREAKER.ATTEMPTINGTO CLOSETHE CIRCUIT
BREAKER WHILE ENERGIZED WILLRESULTIN A
"SHOCKOUT" CONDITION.
Table 1-1 lists application and electrical operating rating data for the shunt trip.
For this publication, the term circuit breaker shall also include molded case switch and motor circuit protector.
Depending on the model ordered, connectionsfor the shunt trip are in one of four forms. The standard wiring configuration is pigtail leads exiting the rear of the base directly behind the shunt trip. Optional configurations include a terminal block mounted on the same side of the base as the accessory, leads exiting the side of the base where the accessory is mounted, and leads exiting the rear of the base on the side opposite the accessory. The
18-inch long pigtail leads are color coded for identification; identification labels are provided for pigtail leads and terminal block points. For allowable locations of all accessories, refer to Frame Book 29-104.
Note: Whenthe walking beam interlock is used with the circuit breaker,the rear trough cannot be used for accessory pigtail leads.
This instruction leaflet (I.L.) gives detailed procedures for installing the shunt trip.
2. INSTALLATION
Note:The shunt trip can be field-installed in LD, HLD, and LDC circuit breakers under UL File E64983.
The shunt trip can be field-installed in LW, HLW, and
LWC circuit breakers.
The shunt trip is listed for factory installation under
UL File E7819.
For sealed circuit breakers (LDB), Underwriters Laboratories Inc. UL 489 requires that internal accessories be installed at the factory. The shunt trip is listed for factory installation under UL File E7819.
Where local codes and standards permit and UL listing is not required, internal accessories can be field installed in sealed circuit breakers. In this case, UL listing becomes invalid and the label should be removed.
Instruction Leaflet IL29C146C
Effective August 2011
Before attempting to install the shunt trip, check that the catalog number is correct as ordered and that the rating of the accessory satisfies job requirements.
The shunt trip, shown in kit form in Fig. 2-1, is installed in the right or left accessory mounting cavity of a 2-, 3-, or
4-pole circuit breaker with an LT (fixed thermal) or LTA
(adjustable thermal) trip unit; and, in the left pole only of a circuit breaker with an LS (electronic) trip unit. A shunt trip must be installed in the circuit breaker before the circuit breaker is mounted in an electrical system. To install the shunt trip, perform the following procedures:
Note:A circuit breaker that ismounted inan electri
-calsystem must be removed toinstall the accessory. To ensure correct accessory installation, the circuit breaker must be placed on a horizontal surface.
WARNING
THE VOLTAGESIN ENERGIZED EQUIPMENT CAN
CAUSE DEATH OR SEVERE PERSONALINJURY.
BEFORE REMOVING A CIRCUIT BREAKER
INSTALLEDIN AN ELECTRICAL SYSTEM, MAKE
SURE THE CIRCUIT BREAKERIS SWITCHEDTO THE
OFF POSITION AND THERE IS NO VOLTAGE
PRESENT WHERE WORK IS TO BE PERFORMED.
SPECIALATTENTION SHOULDBE PAIDTO
REVERSE FEED APPLICATIONSTO ENSURE NO
VOLTAGEIS PRESENT.
Note: For new circuit breaker installation, the trip unit must beinstalled in circuit breaker before attempting toinstall a shunt trip.
Refer toI.L. 29C607, I.L. 29C608, I.L. 29C609, orI.L. 29C610 for instructions onhowto install trip unit.
2.1. Switch circuit breaker to OFF position.
2.2. Disconnect and remove circuit breaker from installation and terminal connections.
2.3. Remove cover screws and covers
- side exiting pigtail leads, thread leads through centertroughin side of base before attempting toinsert the mounting bracket.
Pigtail leads exiting in this manner should be eased through trough as mounting bracket isinserted into trip unit retaining slots. Use center trough also for leads exiting the side of the circuit breaker.
2.4. Route wiring to meet installation requirements.
(See Fig. 2-2.):
EATON CORPORATION www.eaton.com
3
Instruction Leaflet IL29C146C
Effective August 2011
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
CAUTION
LEADSSHOULD BE FORMED AND ROUTED TO
CLEAR ALLMOVING PARTS WHEN ACCESSORY IS
PROPERLY INSTALLED. PIGTAILWIRES COULD BE
DAMAGEDIF IN CONTACT WlTH MOVING PARTS.
IF SHUNT TRlP IS REMOVED FROM CIRCUIT
BREAKER, INTERMEDIATE PLUNGER MUST ALSO
BE REMOVED. FAILURETO REMOVE THE INTERME-
DIATE PLUNGER CAN RESULT IN EQUIPMENT DAM-
AGE.
2.5. Insert shunt trip as described in the following steps
(Fig. 2-3).
WARNING
FAILURE TO KEEP FINGERS AWAY FROM MOVING
PARTS CAN CAUSE PERSONAL INJURY. WHEN
INTERMEDIATEPLUNGER IS POSITIONED IN TRlP
UNIT, CIRCUIT BREAKER WILLMOVE TO THE TRlP
POSITIONCARE SHOULD BE TAKENTO KEEP FIN-
GERS CLEAR OF CIRCUIT BREAKER MECHANISM
PARTS AND HANDLE.
a. Remove barrier from trip unit accessory mounting slots in pole being used for accessory. b. Position intermediate plunger in trip unit
(Fig. 2-3).
c. Trip circuit breaker by pressing intermediate plunger into recess in top of trip unit, and hold plunger in position. d. Slide shunt trip plug-in module into slots until retaining clip snaps into trip unit. Cutoff switch actuator must be above the crossbar. For terminal block assemblies, slide terminal block into mounting slot on side of base as plug-in module is being positioned.
e.
If required, complete routing of leads to opposite side through rear wiring trough.
WARNING
CONTACT WlTH MOVING PARTS CAN CAUSE PER-
SONALINJURY. WHEN CHECKING ACCESSORY, DO
NOT PUT FINGERS NEAR MOVING PARTS INSIDE
CIRCUIT BREAKER CASE. SPRINGS CAUSE INTER-
NAL PARTS TO MOVE QUICKLY AND WlTH FORCE.
2.6. Perform mechanical check of shunt trip after installation: a. With the circuit breaker still electrically isolated, reset the circuit breaker.
b. Using a small flat-blade screwdriver, depress solenoid plunger (Fig. 2-4). Circuit breaker should move to trip position. c. If mechanical check does not trip circuit breaker, see if shunt trip and intermediate plunger are correctly installed. If shunt trip and intermediate plunger appear to be properly installed and problem persists, contact
Eaton.
CAUTION
WHEN INSTALLINGCIRCUIT BREAKER MAIN
COVER, MAKE SURE THAT ALLINTERNAL PARTS
ARE IN PLACE:
SLIDING HANDLE BARRIER IS POSITIONEDSO
THAT THE HANDLE OPENING IS ALIGNED WlTH
THE HANDLE.
ALLLEADSARE CLEAR OF THE COVER.
2.7. With circuit breaker handle in TRIPPED position and accessory pigtail leads (if used) routed as required, install circuit breaker covers. Secure with pan-head cover screws. Torque to 20-22 Ib-in
(2.26-2.49 N.m.).
4 EATON CORPORATION www.eaton.com
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
Shunt Trip
Plug-in
Module With
Pigtail
Leads
"Suitable for
Fault Device
Intermediate
Plunger
Accessory
Nameplate
Connection
Diagram
Label
(Pigtail Leads
Shown)
Fig.
2-1 Shunt Trip Kit
Instruction Leaflet IL29C146C
Effective August 2011
Fig. 2-3 Installing Intermediate Plunger and Shunt Trip
Terminal Block
Fig. 2-2 Accessory Wiring Options
EATON CORPORATION www.eaton.com
5
Instruction Leaflet IL29C146C
Effective August 2011
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
6
Fig. 2-4 Screwdriver Depressing Shunt Trip Solenoid
Plunger
2.8. Remove and discard UL listing label on LDB circuit breakers only.
2.9. Place accessory labels (supplied with kit) on circuit breaker. (See Fig. 2-5.)
Note: Accessory labels show connection diagram for shunt trip. Pigtail leads are color coded white and yellow.
2.10. Test cutoff switch. Connect ohmmeter across pigtail leads or terminal block connections. Check continuity as follows: a. Circuit breaker handle OFF no continuity. b. Circuit breaker handle ON less than 9000 ohms.
(When Used)
Fig.
2-5 Preferred Mounting Locations for Accessory
Nameplate Labels
Note: For molded case switches, omit step c.
c. Press PUSH-TO-TRIP button no continuity. d. If cutoff switch fails test, make sure that shunt trip module is properly seated in trip unit slots. If problem persists, contact Cutler-Hammer.
2.11. Install circuit breaker.
2.12. Connect shunt trip as required (see Fig.
2-6).
Eaton assumes no responsibilityfor malfunctioning accessories installed improperly by the customer.
Pigtail Leads
Contact and
Indication
Requiredl
Terminal Block
I
Voltage (Supplied By
Source Customer)
When Required
Fig.
2-6 Shunt Trip Connection Diagram
EATON CORPORATION www.eaton.com
Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
Instruction Leaflet IL29C146C
Effective August 2011
TABLE 1-1. SHUNT TRIP ELECTRICAL RATING DATA
Average circuit breaker contact total opening time approximately 6 milliseconds, depending on voltage.
Endurance 400 electrical operations plus 5600 mechanical operations
Shunt trip can be operated up to a maximum of six times per minute
Maximum operating voltage 110% of maximum voltage range rating
Terminal block is approved for use with one or two No. 18 to No. 14 AWG solid or stranded copper wires.
Torque is 7 Ib-in (0.8 Nm).
Catalog Suffix
Field
Mounting
Kit
Factory
Installed
03K
05K
14K
23K
26K
03
05
14
18
23
26
Application Ratings
Voltage Frequency
(V)
12-24
12-24
48-60
110-240
380-440
220-250
480-600
48-60
110-125
50160
DC
50160
50160
50160
DC
50160
DC
DC
Supply Minimum
Voltage Operating
Voltage
ElectricalOperating Ratings lp
(A) lrmsat lrmsat
0.250s
0.033s
380
400
415
440
220
250
480
525
550
600
48
60
110
120
125
9
12
24
9
12
24
48
60
110
120
127
208
220
240
6
6
34
77
266
154
336
34
77
7.2
11.6
28.6
0.72
1.2
0.89
1.03
1.1
2.3
2.4
2.6
0.30
0.34
0.35
0.38
0.07
0.07
0.08
0 .
1 1
8.5
8.6
17.4
0.34
0.34
0.76
0.95
0.42
0.43
0.44
5.1
8.2
20.2
0.51
0.84
0.63
0.73
0.80
1.6
1.7
1.8
0.21
0.24
0.25
0.27
0.05
0.05
0.06
0.08
VA
80
96
104
119
75
85
24
26
33
48
36
57
46
52
55
46
98
485
75
103
418
25
50
69
88
102
333
374
432
One
Minute
Dielectric
Withstand
Voltage(V)
1048
1120
1480
1880
2200
1120
1250
Notes:
(1) Suitable for use with Class 1 GFP devices; marking label supplied with accessory kit.
EATON CORPORATION www.eaton.com
7
Instruction Leaflet
Effective August 2011
IL29C146C Installation Instructions for Shunt Trip for LDB, LD, HLD,
LDC, LW, HLW, LWC Circuit Breakers, Series C Molded
Case Switches, and Motor Circuit Protectors (HMCP)
The instructions for installation, testing, maintenance, or repair herein are provided for the use of the product in general commercial applications and may not be appropriate for use in nuclear applications. Additional instructions may be available upon specific request to replace, amend, or supplement these instructions to qualify them for use with the product in safety-related applications in a nuclear facility.
This Instruction Booklet is published solely for information purposes and should not be considered all-inclusive. If further information is required, you should consult an authorized Eaton sales representative.
The sale of the product shown in this literature is subject to the terms and conditions outlined in appropriate Eaton selling policies or other contractual agreement between the parties. This literature is not intended to and does not enlarge or add to any such contract.
The sole source governing the rights and remedies of any purchaser of this equipment is the contract between the purchaser and Eaton.
NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR
MERCHANTABILITY, OR WARRANTIES ARISING FROM COURSE
OF DEALING OR USAGE OF TRADE, ARE MADE REGARDING
THE INFORMATION, RECOMMENDATIONS, AND DESCRIPTIONS
CONTAINED HEREIN.
In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or otherwise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment, plant or power system, cost of capital, loss of power, additional expenses in the use of existing power facilities, or claims against the purchaser or user by its customers resulting from the use of the information, recommendations and description contained herein.
Eaton Corporation
Electrical Sector
1111 Superior Ave.
Cleveland, OH 44114
United States
877-ETN-CARE (877-386-2273)
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© 2011 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. IL29C146C / TBG000678
Part No. 6633C05H03
August 2011
Eaton is a registered trademark of Eaton
Corporation.
All other trademarks are property of their respective owners.
