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GE Energy
Industrial Solutions
GEH-6251 Installation Instructions
Power Supply Plate
For Spectra® RMS Molded-Case Circuit Breakers with microEntelliGuardTM,
®
MicroVersaTrip
PM or MicroVersaTrip® Plus Trip Units
For Catalog Numbers SPSA120, SPSA208, SPSA240, SPSA480, SPSA600
Circuit Breaker Accessory
Overview
The General Electric Power Supply Plate is used to
provide +24Vdc Control Power to Spectra
Case Circuit Breakers with microEntelliGuard
MicroVersaTrip
Cable System. The Power Supply Plate also provides
power to the Voltage Conditioner Assembly or Voltage
Conditioner Plate (Spectra
Breakers with microEntelliGuard
PM Trip Units require connection to a Voltage
Conditioner Assembly or Voltage Conditioner Plate to
function properly). The Power Supply Plate includes the
Power Supply Assembly (catalog number SPSAA) as an
®
PM/Plus Trip Units via the Distribution
®
RMS Molded-Case Circuit
TM
or MicroVersaTrip®
®
RMS Molded-
TM
or
integral component and also includes fuse protection
for the AC source input terminals.
The Power Supply Plate 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
with microEntelliGuard
Trip Units with a maximum system cable length of 40
feet. The Power Supply Plate is designed to operate in
temperatures between O°C and 70°C.
®
RMS Molded-Case Circuit Breakers
TM
or MicroVersaTrip® PM / Plus
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GEH-6251 Installation Instructions
Figure 1 shows how the Power Supply Plate is used in a typical MicroVersaTrip® PM system. Figure 2 shows how
the Power Supply Plate is used in a typical MicroVersaTrip
®
Plus system. The microEntelliGuard
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
TM
microEntelliGuard
Trip Units with Basic Metering.
Figure 1. Typical microEntelliGuard™ or MicroVersaTrip® PM Trip Unit System detailing the Power Supply Plate.
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GEH-6251 Installation Instructions
Figure 2. Typical microEntelliGuardTM or MicroVersaTrip® Plus Trip Unit System detailing the Power Supply Plate.
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GEH-6251 Installation Instructions
The Power Supply Plate is available in five ratings.
Table 1 contains a listing of all GE Power Supply
Plates. All units are rated 60 Hz. 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
minimum requirement. This backup input must meet
ANSI C37.90.1 for oscillatory and fast transient surges
(the Power Supply Plate provides this protection for the
primary AC input). 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 microVersaTrip
TM
EntelliGuard
TU Trip Unit).
PM/Plus or
NOTE: THE POWER SUPPLY PLATE IS SIZED FOR A
MAXIMUM OF 20 BREAKERS. Use of the Power Supply
Plate 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
TM
or EntelliGuard
of 20 Spectra
microEntelliGuard
TU Trip Unit reduces the total quantity
®
RMS Molded-Case Circuit Breakers with
TM
or MicroVersaTrip® PM/Plus Trip
PM/Plus
Units by one. The overall maximum cabling length of
the system remains 40 feet.
Table 1. Ge Power Supply Plates
Voltage
Rating
I20VAC SPSA12O
208VAC SPSA208 2amp 2
240VAC SPSA240 2amp 2
480VAC SPSA480 2amp 2
600VAC SPSA600 2amp 2
1
Fuse protection only in one leg – this is a line-to-neutral connection.
All other connections are line to line.
Catalog
Number
Class CC
Line Fuses
1
2amp 1
# Comments
SPSAA on mounting plate
with fuse holder
SPSAA on mounting plate
with fuse holder
SPSAA on mounting plate
with fuse holder
SPSAA on mounting plate
with fuse holder
and 480 Vac transformer
SPSAA on mounting plate
with fuse holder
and 480 Vac transformer
The Power Supply Plate contains six connection points.
Refer to Figures 4 and 5 for connection details and
location information. The following is a detailed list of
the Power Supply Plate 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
with microEntelliGuard
RMS Molded-Case Circuit Breakers
TM
, 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 Voltage”
– Two-screw terminals on the fuse block for
connection of the primary AC source.
• “Input”
– Three-screw terminal block on the Power Supply
Assembly. Use one-terminal screw for connection
of the ground (the other two-terminal screws are
factory wired to the load side of the fuse block).
• “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 Plate 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 3.
Table 3. Signals available on the Distribution Cable System
by connection of the Power Supply Plate
Spectra® RMS
Breaker with
MicroVersaTrip
Trip Unit
control power
(+24vdc)
control power
(common)
®
PM
®
Spectra
Breaker with
MicroVersaTrip
Plus Trip Unit
control power
(+24vdc)
control power
(common)
RMS
Spectra
Breaker with
®
microEntelliGuard
Trip Unit
control power
(+24vdc)
control power
(common)
®
RMS
TM
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GEH-6251 Installation Instructions
Dimensions, Weights and Wiring Diagrams
A Power Supply Plate dimensioned drawing is provided in Figure 3 to assist in mounting the accessory.
The maximum unit weight is eight pounds.
Figure 3. Dimensioned drawing of the Power Supply Plate (dimensions shown in inches).
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GEH-6251 Installation Instructions
Figures 4 and 5 contain point-to-point wiring diagrams for a Power Supply Plate as it integrates into a typical
TM
microEntelliGuard
or MicroVersaTrip® PM/Plus System.
Figure 4. Wiring connections to the Power Supply Plate for a typical microEntelliGuardTM or MicroVersaTrip® PM System.
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GEH-6251 Installation Instructions
Figure 5. Wiring connections to the Power Supply Plate for a typical microEntelliGuardTM or MicroVersaTrip® Plus System
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GEH-6251 Installation Instructions
Connections
The screw terminals on the Power Supply Plate are
labeled by function for clarity. The terminal strip
pockets on the AC INPUT fuse block will accommodate
a spade lug or ring terminal with a tongue width up
to 0.45 inches. The terminal screw size is 10-32. The
terminal strip pockets on the Power Supply Assembly
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 Plate also contains two
12-pin plug connectors. The connectors are keyed
so they cannot be inserted incorrectly into a mating
12-pin receptacle connector. To connect to the Power
Supply Plate plug(s), align the receptacle interlock
connector of a Distribution Cable Harness with the
plug hook connector of the Power. Supply Plate. Insert
the receptacle until the interlock and hook catch (see
Figure 6). To disconnect from the Power Supply Plate,
press down at the rear of the receptacle interlock until
the interlock clears the plug hook and withdraw the
receptacle interlock (see Figure 7).
Figure 7. Side view of receptacle-plug removal from the Power
Supply Plate
Parts And Options
The only user-serviceable components or parts 011
the Power Supply Plate are the fuses in the AC INPUT
fuse block. The fuses listed in Table 4 are recommended
as replacements for use with the Power Supply Plate.
Failure to use the proper type of fuses can result in
damage to the Power Supply Plate. Two fuses per
Power Supply Plate are required. If you prefer to
purchase a +24Vdc Power Supply without the factory
mounted AC line fuses or a control power transformer, a
Power Supply Assembly is available. This Power Supply
Assembly always requires AC line fuse protection and
in applications where the AC input voltage is greater
than 240Vac @ 60 Hz, a control power transformer
will always be required to step the voltage down to
85-240Vac @ 60 Hz. Table 5 lists the details on the GE
Power Supply Assembly.
Figure 6. Slide view of receptacle-plug insertion into the Power
Supply Plate.
Table 4. Recommended Replacement Fuses for use with the
Power Supply Plate
Ampere
Rating
2 amp Gould-Shawmut ATMR 2
Table 5. Available GE Power Supply Assembly
Catalog
Number
SPSAA
Catalog
Manufacturer
Description
Power Supply
Assembly
Number Comments
Class CC current
limiting fuse
AC Line Fuses
Requirement
2 amp class CC
Voltage Rating of
Assembly
85Vac to 240Vac
@50/60 Hz
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GEH-6251 Installation Instructions
Additional Information
Refer to these other user’s manuals for more details:
®
GEH-5934 MicroVersaTrip
PM Trip Units in Spectra
Plus and MicroVersaTrip®
®
RMS Molded-
Case Circuit Breakers
®
GEH-700 Spectra
G Breaker w/
microEntelliGuard™ Trip Unit
®
GEH-701 Spectra
K Breaker w/
microEntelliGuard™ Trip Unit
GEH-702 microEntelliGuard™ Trip Unit Users Manual
DEH-41318 Universal Rating Plug
GEH-6250 Voltage Module
GEH-6252 Voltage Conditioner Plate
GEH-6253 Power Supply Assembly
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
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GEH-6251 Installation Instructions
Notes
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GEH-6251 Installation Instructions
Notes
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Spectra and MicroVersaTrip are registered trademarks and EntelliGuard and
microEntelliGuard 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-6251 Rev. 4 (11/11 M45)
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