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33
Installation
01.4IB.77020
Remove the incorrectly rated circuit breaker
and insert a properly rated circuit breaker into
the circuit breaker compartment.
1) Prior to Inserting the Circuit Breaker into the
Circuit Breaker Compartment
a. Check the Primary Disconnecting
Devices and Circuit Breaker
Compartment
Examine the primary disconnecting
devices for any signs of damage and
contamination. Check to see that
none are bent out of alignment. If
contamination is found refer to
Description, 2) Inspection and Cleaning
for cleaning and
lubrication procedures. If the primary
disconnecting devices are damaged
make no attempt to repair. Contact
Powell for further information.
Examine the circuit breaker
compartment to see that it is clean and
clear of debris that might interfere with
circuit breaker travel.
Before inserting any circuit breaker into a
compartment, the user must verify that the
circuit breaker rating meets or exceeds the
metal-clad switchgear rating.
CAUTION
Before inserting a circuit breaker into the
circuit breaker compartment, be sure that
the indicator flag on the front cover
of the circuit breaker displays “TEST”.
CAUTION
b. Racking the Circuit Breaker into the
Circuit Breaker Compartment
The described racking procedures apply
only for the PowlVac-ND® Series 4 circuit
breakers. For all other constructions,
refer to the appropriate instructions or
instruction bulletin(s) for the applicable
racking procedures.
The PowlVac-ND Series 4 circuit breaker
may be racked manually or electrically
using the optional Power Racking
device.
The PowlVac-ND Series 4 circuit breaker
is designed to be manually racked into
the circuit breaker compartment with
the compartment door closed. The
optional Power Racking device may
be fitted on the closed circuit breaker
compartment door to eliminate manual
operation.
Note:
The described racking procedures
are for racking the circuit breaker
into the lower circuit breaker
compartment only. To rack the circuit
breaker into an upper circuit breaker
compartment, refer to the metal-clad
switchgear instruction bulletin for
detailed information.
