GE Energy
Industrial Solutions
GEH-6253 Installation Instructions
Power Supply Assembly
For Spectra® RMS Molded-Case Circuit Breakers
TM
with microEntelliGuard
, 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
Case Circuit Breakers with microEntelliGuard
MicroVersaTrip
Cable System.
The Power Supply Assembly also provides power to the
Voltage Conditioner Assembly or Voltage Conditioner
Plate. Spectra
microEntelliGuard™ (with advanced metering) and
MicroVersaTrip
Voltage Conditioner Assembly or Voltage Conditioner
Plate to function properly.
®
RMS Molded-
TM
®
PM/Plus Trip Units via the Distribution
®
RMS Molded-Case Circuit Breakers with
®
PM Trip Units require connection to a
or
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
with microEntelliGuard
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.
®
RMS Molded-Case Circuit Breakers
TM
or MicroVersaTrip® PM/Plus
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 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
TM
to microEntelliGuard
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).
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 EntelliGuardTM 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
TM
PM/Plus or EntelliGuard
total quantity of 20 Spectra
Breakers with microEntelliGuard
TU Trip Unit reduces the
®
RMS Molded-Case Circuit
TM
or MicroVersaTrip®
PM/Plus Trip Units by one. The overall maximum cabling
length of the system remains 40 feet.
• “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.
Table 2. Signals Available on the Distribution Cable System by
connection of the Power Supply Assembly.
Spectra® RMS ™ Breaker
with microEntelliGuard™ or
MicroVersaTrip
Control Power (+24Vdc) Control Power (+24Vdc)
Control Power (-common) Control Power (-common)
®
PM Trip Unit
Spectra
MicroVersaTrip
microEntelliGuard™ with
Basic Metering Trip Unit
®
RMS Breaker with
®
Plus or
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
MicroVersaTrip
RMS Molded-Case Circuit Breakers with
®
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 microEntelliGuard
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 microEntelliGuardTM 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.
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).
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
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.
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).
Figure 6. Slide view of receptacle-plug insertion into the
Power Supply Assembly.
Figure 7. Side view of receptacle-plug removal from the
Power Supply Assembly.
Table 4. Recommended GE Control Power Transformers for use
with the Power Supply Assembly.
Input Rating Pri / Sec Rating Catalog Number
480Vac @ 50/60 Hz 480Vac / 120Vac 9T58K2802
600Vac @ 50/60 Hz 600Vac / 120Vac 9T58K2824
Table 5. Available GE Power Supply Plates.
Voltage
Rating
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
480 Vac SPSA480 2,2 amp
600 Vac SPSA600 2,2 amp
Catalog
Number
AC line
Fuses
Comments
larger mounting plate with fuse holders
and 480Vac to 120Vac transformer
larger mounting plate with fuse holders
and 600Vac to 120Vac transformer
GEH-6253 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-6251 Power Supply Plate
GEH-6252 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
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-6253 Rev. 4 (11/11 M45)
Loading...