GE Energy

Industrial Solutions

GEH-6253 Installation Instructions

Power Supply Assembly

For Spectra

®

RMS Molded-Case Circuit Breakers with micro EntelliGuard

TM

, MicroVersaTrip

®

PM or MicroVersaTrip

®

Plus Trip Units

For Catalog Number SPSAA

Circuit Breaker Accessory

Overview

The General Electric Power Supply Assembly is used to provide +24Vdc Control Power to Spectra ® RMS Molded-

Case Circuit Breakers with micro EntelliGuard TM or

MicroVersaTrip ® PM/Plus Trip Units via the Distribution

Cable System.

The Power Supply Assembly also provides power to the

Voltage Conditioner Assembly or Voltage Conditioner

Plate. Spectra ® RMS Molded-Case Circuit Breakers with micro EntelliGuard™ (with advanced metering) and

MicroVersaTrip ® PM Trip Units require connection to a

Voltage Conditioner Assembly or Voltage Conditioner

Plate to function properly.

The Power Supply Assembly is rated 24 watts (+24Vdc@

1.0 amp) and has the maximum capacity to power a

Distribution Cable System consisting of either a Voltage

Conditioner Assembly or a Voltage Conditioner Plate

AND 20 Spectra ® RMS Molded-Case Circuit Breakers with micro EntelliGuard TM or MicroVersaTrip ® PM/Plus

Trip Units with a maximum system cable length of 40 feet.

The assembly requires a minimum input voltage of

85Vac @ 60 Hz to operate properly (the maximum voltage rating is 240Vac @ 60 Hz). This input must

be fused with 2-amp class CC fuses (not included).

The Power Supply Assembly is designed to operate in temperatures between 0°C and 70°C.

GEH-6253 Installation Instructions

Figure 1 shows how the Power Supply Assembly is used in a typical MicroVersaTrip ® PM system. Figure 2 shows how the Power Supply Assembly is used in a typical MicroVersaTrip ® Plus system. The micro EntelliGuard TM Trip Unit can be used with either configuration, i.e. Figure 1 or Figure 2. The connection diagram shown in Figure 2 applies to micro EntelliGuard TM Trip Units with Basic Metering.

Figure 1. Typical MicroVersaTrip ® PM Trip Unit System detailing the Power Supply Assembly.

GEH-6253 Installation Instructions

Figure 2. Typical MicroVersaTrip ® Plus Trip Unit System detailing the Power Supply Assembly.

GEH-6253 Installation Instructions

Supplemental 24Vdc input terminals are provided for systems that have access to an external +24Vdc power supply. If this supplemental input is connected, the assembly will continue to pass the control power to breakers and accessories connected to the Distribution

Cable System if the primary AC power is lost or drops below the 85Vac minimum requirement. This backup input must meet ANSI C37.90.1 for oscillatory and fast transient surges (the Power Supply Assembly provides this protection for the primary AC input).

• “Output to 24Vdc”

– Two-screw terminal block for optional control power output (in lieu of using the Distribution Cable System).

• “Supplemental Input 24Vdc”

– Two-screw terminal block for connection of an external +24Vdc power supply.

By plugging the Power Supply Assembly into the

Distribution Cable System, you create system wide signals that are available to all breakers connected to the system; a list of those functions appears in Table 2.

Additional 24Vdc output connections are supplied for applications where +24Vdc control power is required independent of the Distribution Cable System (i.e. feeding an Air Circuit Breaker or Insulated Case Breaker with a

MicroVersaTrip ® PM/Plus or EntelliGuard TM TU Trip Unit).

NOTE: THE POWER SUPPLY ASSEMBLY IS SIZED FOR A

MAXIMUM OF 20 BREAKERS . Use of the Power Supply

Assembly to provide voltage sensing signals and/or

+24Vdc control power to a main Air Circuit Breaker or a main Insulated Case Breaker with a MicroVersaTrip ®

PM/Plus or EntelliGuard TM TU Trip Unit reduces the total quantity of 20 Spectra ® RMS Molded-Case Circuit

Breakers with micro EntelliGuard TM or MicroVersaTrip ®

PM/Plus Trip Units by one. The overall maximum cabling length of the system remains 40 feet.

Table 2. Signals Available on the Distribution Cable System by connection of the Power Supply Assembly.

Spectra with

® RMS ™ Breaker micro EntelliGuard™ or

MicroVersaTrip ® PM Trip Unit

Control Power (+24Vdc)

Spectra ® RMS Breaker with

MicroVersaTrip ® Plus or micro EntelliGuard™ with

Basic Metering Trip Unit

Control Power (+24Vdc)

Control Power (-common) Control Power (-common)

Dimensions, Weights and Wiring Diagrams

A Power Supply Assembly dimensioned drawing is provided in Figure 3 to assist in mounting the assembly.

The maximum unit weight is two and a half pounds.

The Power Supply Assembly contains five connection points. The following list contains a description and type of connection points.

• “To Distribution Cable”

– 12-pin plug connector that mates with the 12-pin receptacle of a Distribution Cable Harness (catalog number SDCHA11, SDCHA30 or SDCHA60).

• “To Voltage Conditioner”

– 12-pin plug connector that mates with the 12-pin receptacle of a Distribution Cable Harness (catalog number SDCHA11, SDCHA30 or SDCHA60). For

Spectra ® RMS Molded-Case Circuit Breakers with

MicroVersaTrip ® PM Trip Units, the other end of the harness MUST connect to either a Voltage

Conditioner Assembly (catalog number SVCAA) or a Voltage Conditioner Plate (catalog number

SVCA120Y, SVCA208Y, SVCA240D, SVCA277Y,

SVCA480Y, SVCA480D or SVCA600D) for the breaker to function properly.

• “Input”

– Three-screw terminal block for connection of the primary AC source (85Vac to 240Vac @ 50/60 Hz)

AND a ground connection.

Figure 3. Dimensioned drawing of the Power Supply Assembly

(dimensions shown in inches).

GEH-6253 Installation Instructions

Figure 4 shows how the Power Supply Assembly is used in a typical MicroVersaTrip ® PM system. Figure 5 shows how the Power Supply Assembly is used in a typical MicroVersaTrip ® Plus system. The micro EntelliGuard TM Trip Unit can be used with either configuration, i.e. Figure 4 or Figure 5. The connection diagram shown in Figure 5 applies to micro EntelliGuard TM Trip Units with Basic Metering.

Figure 4. Wiring connections to the Power Supply Plate for a typical MicroVersaTrip ® PM System.

GEH-6253 Installation Instructions

Figure 5. Wiring connections to the Power Supply Plate for a typical MicroVersaTrip ® Plus System

GEH-6253 Installation Instructions

Connections

The screw terminals on the Power Supply Assembly are labeled by function for clarity. The terminal strip pocket will accommodate a spade lug or ring terminal with a tongue width up to 0.320 inches. The terminal screw size is 10-32. To make the connection, attach an appropriate spade lug or ring terminal to the wire, then slip the fastener beneath the terminal screw and tighten.

The Power Supply Assembly also contains two 12-pin plug connectors. The connectors are keyed so they cannot be inserted incorrectly into a mating 12-pin receptacle connector.

PARTS AND OPTIONS

There are no user-serviceable components or parts within the Power Supply Assembly; however, in order for the unit to be properly protected the 85Vac to

240Vac 60Hz INPUT must be fused. Table 3 lists the fuses and fuse holders that are recommended for use with the Power Supply Assembly.

Table 3. Recommended replacement fuses for use with the

Power Supply Assembly.

Class CC Current limiting Fuse Fuse Holder

Gould-Shawmut ATMR 2 Gould-Shawmut 3012R & DFC3M

To connect to the Power Supply Assembly plugs, align the receptacle interlock connector of a Distribution

Cable Harness with the plug hook connector of the

Power Supply Assembly. Insert the receptacle until the interlock and hook catch (see Figure 6). To disconnect from the Power Supply Assembly, press down at the rear of the receptacle interlock until the interlock clears the plug hook and withdraw the receptacle interlock

(see Figure 7).

If the incoming AC power supply is greater than the

240 Vac @ 60 Hz maximum rating of the Power Supply

Assembly, then refer to Table 4 for a listing of GE control power transformers that are recommended for use with the Power Supply Assembly. The INPUT to the

Power Supply Assembly must always be protected. It is recommended that the primary side of the control power transformer be fused with the fuses previously described.

Figure 6. Slide view of receptacle-plug insertion into the

Power Supply Assembly.

If there is a preference to purchase a +24Vdc Power

Supply that has factory-mounted AC line fuses and/ or a higher AC voltage rating, Table 5 contains a listing of GE Power Supply Plates. These Power Supply Plates contain the Power Supply Assembly as an integral part of the plate and are factory-wired from the Power

Supply Assembly to the control power transformer

(where required) and to the fuse holders (one set of fuses is included).

Table 4. Recommended GE Control Power Transformers for use with the Power Supply Assembly.

Input Rating

480Vac @ 50/60 Hz

600Vac @ 50/60 Hz

Pri / Sec Rating

480Vac / 120Vac

600Vac / 120Vac

Catalog Number

9T58K2802

9T58K2824

Table 5. Available GE Power Supply Plates.

Voltage

Rating

Catalog

Number

AC line

Fuses

Comments

120 Vac SPSA120 1,2 amp larger mounting plate with fuse holder

208 Vac SPSA208 2,2 amp larger mounting plate with fuse holder

240 Vac SPSA240 2,2 amp larger mounting plate with fuse holder

Figure 7. Side view of receptacle-plug removal from the

Power Supply Assembly.

GEH-6253 Installation Instructions

Additional Information

Refer to these other user’s manuals for more details·:

GEH-5934 MicroVersaTrip ® Plus and MicroVersaTrip ®

PM Trip Units in Spectra ® RMS Molded-

Case Circuit Breakers

GEH-700 Spectra ® G Breaker w/ micro EntelliGuard™ Trip Unit

GEH-701 Spectra ® K Breaker w/ micro EntelliGuard™ Trip Unit

GEH-702 micro EntelliGuard™ Trip Unit Users Manual

DEH-41318 Universal Rating Plug

GEH-6250 Voltage Module

GEH-6251

GEH-6252

Power Supply Plate

Voltage Conditioner Plate

GEH-6254 Voltage Conditioner Assembly

GEH-703 MET Battery Pack Adapter

GEH-704 MET Advanced Distribution Cable

Junction Box

DEH-006 Distribution Cable Junction Box

GEH-705 MET Distribution Cable Extension (20-pin)

GEH-6256 Distribution Cable Extension (12-pin)

GEH-6255 Distribution Cable Harness (12-pin)

GEH-706 MET Distribution Cable Terminal Blocks

(11 point & 22 point)

GEH-6257 Distribution Cable Terminal Block (11 point)

GEH-6491 POWER LEADER™ Modbus Concentrator

GEH-6502 POWER LEADER™ PMCS 5.0 Network

Architecture Guide

GEH-707 MET Sealable Cover kits

DEH-4568 GTU digital test kit (GTUTK20)

GEH-5551 Shunt Trip and UVR instructions

GEH-5593 Aux switch and bell alarm

GEK-64467 TIM-1 Zone Selective Interlock Module

Spectra and MicroVersaTrip are registered trademarks and EntelliGuard and micro EntelliGuard are trademarks of the General Electric Company.

These instructions do not cover all details or variations in equipment nor do they provide for every possible contingency that may be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise that are not covered sufficiently for the purchaser’s purposes, the matter should be referred to the GE Company.

GE Energy

41 Woodford Avenue, Plainville, CT 06062 www.geelectrical.com

© 2011 General Electric Company

imagination at work

GEH-6253 Rev. 4 (11/11 M45)