Instruction Book
Effective: May 2006
I.B. 2C12060H08
For more information visit: www.EatonElectrical.com
Page 69
Table 7.1 Circuit Breaker Troubleshooting Guide (continued from previous page)
Circuit breaker cannot Spring release (closing) coil Check power supply voltage;
be closed remotely (can supply voltage low or spring replace spring release if faulty
be closed locally) release faulty
Secondary contact wiring Make sure electrical pin and
problem socket connectors are properly
seated in molded plug. Verify
proper wiring
Spring release closing coil Clear Digitrip 1150 relay contact
signal blocked
Circuit breaker cannot Opening and/or closing Check reason for lock
be closed locally (but pushbuttons locked
can be closed remotely)
Circuit breaker does not Charging motor supply voltage Check charging motor electrical
recharge electrically but absent or too low (<85%) circuit voltage (check under
will recharge manually load)
Charging motor faulty Replace charging motor assembly
Drawout circuit breaker Circuit breaker will not fully Circuit breaker ratings do not
will not lever-in enter cell (cell rejection correspond to the cassette
code plate) requirements
Levering-in screw not in Rotate levering-in screw
fully DISCONNECT counterclockwise to
position at insertion DISCONNECT position, then
insert breaker fully into cassette
Levering-in screw in Push circuit breaker in as far
DISCONNECT position it will go, cover should be flush
but not pushed in far enough with front of cassette side plate
Protective boots covering Remove boots
stationary disconnects
Shutter jammed or locked Clear problem
Symptom Probable Cause Corrective Actions
To Next Page
Loading...
Need help?
General
