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Recommended Renewal Parts and Replacement Procedures
01.4IB.50023A
Ch 7 Recommended Renewal Parts and
Replacement Procedures
A. o
rderInG
I
nStructIonS
1. Order Renewal Parts from Powell at
or call 1.800.480.7273.
2. Always specify complete nameplate
information, including:
• Ground and Test Device Type
• Serial Number
• Rated Voltage
• Rated Amps
• Impulse Withstand
• Control Voltage (for control devices and
coils)
3. Specify the quantity and description
of the part and the instruction bulletin
number. If the part is in any of the
recommended renewal parts tables, specify
the catalog number. If the part is not in
any of the tables, a description should be
accompanied by a marked illustration from
this instruction bulletin, a photo or simply
submit a sketch showing the part needed.
B. r
ecommended
r
eneWAl
p
ArtS
A sufficient amount of renewal parts should be
stored to enable the prompt replacement of
any worn, broken or damaged part. A sufficient
amount of stocked parts minimizes service
interruptions caused by breakdowns and saves
time and expense. When continuous operation
is a primary consideration, a larger quantity of
renewal parts should be stocked depending
on the severity of the service and the time
required to secure replacements parts.
Since parts may be improved periodically,
renewal parts may not be identical to
the original parts.
lists the recommended spare
parts to be carried in stock by the user. The
recommended quantity is not specified. This
must be determined by the user based on the
application. As a minimum, it is recommended
that one set of parts be stocked per ten circuit
breakers or less.
Powell recommends that only qualified
technicians perform maintenance on these
units. Refer to the
section in
the front of this instruction bulletin. If these
circuit breakers are installed in a location
where they are not maintained by a qualified
technician, a spare circuit breaker should be on
site ready for circuit breaker replacement. The
malfunctioning unit can then be returned to
the factory for reconditioning.
Table B Recommended Renewal Parts
Quantity
Description
Catalog Number
3
Grounding Switch Moving
Contact
60221P01
6
G.S. Stationary Contact
Finger
60219P01
3
Test Probe
50577G02
1
Closing Coil, 120V 60Hz (1)
50026G01
1
Charging Motor, 120V
60Hz (1)
50960G04
1
Shunt Trip Coil, 120V 60Hz
(1) (2)
50025G03
1
Motor Relay
GS187
1
Latch Check Switch
BA-2RV2-A2
1
Trip Paddle Interlock
Switch
BA-2RV2-A2
1
Motor Cutoff Switch
Assembly
50756G03
2
Auxiliary Switch
MT-4RV-A28
3
Primary Contact Spring
Assembly
50740G02
2
Ground Shoe Finger
Assembly
50952G02
Notes:
1) For other control voltages, contact
factory.
2) When device is equipped with this
optional feature.