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Instruction Book
Effective: May 2016
Page 53
IB131017EN
For more information visit:
www.Eaton.com
Table 6.4 Troubleshooting Guide (continued on next page)
Symptom
Probable Cause
Corrective Actions
Circuit breaker undesirably opens
Opening coil is energized
Check control signal to circuit
breaker for proper connection
Interlock switch is closed (drawout
only)
Check that interlocks are in correct
positions and free from obstruc-
tions
Circuit breaker undesirably closes
Closing coil is energized
Check control signal to circuit
breaker for proper connection
Interlock switch is closed (drawout
only)
Check that interlocks are in correct
positions and free from obstruc-
tions
When attempting to close, the circuit
breaker opens immediately
The vacuum interrupter contact wipe
is incorrectly adjusted
Contact EATON Service Center
Interlock switch is closed (drawout
only)
Check that interlocks are in correct
positions and free from obstruc-
tions
Circuit breaker cannot be opened
remotely, but can be opened locally
Secondary contact wiring problem
Check for correct installation of
pins and sockets and that the plug
us properly connected
A voltage is being supplied to the
open circuit
A dry contact must be used to
open the circuit breaker remotely
Controller wiring problem
Inspect for loose wires into con-
troller
Circuit breaker cannot be opened
locally, but can be opened remotely
Controller or pushbutton switch
wiring problem
Inspect for loose wires into con-
troller or open pushbutton switch
Circuit breaker makes no attempt to
open with either local (manual) or
remote controls
Opening spring broken or one or
more vacuum interrupter contacts
welded
Contact EATON Service Center
Controller or pushbutton switch
wiring problem
Inspect for loose wires into con-
troller or open pushbutton switch
Damaged auxiliary switch or open
coil
Contact EATON Service Center
Circuit breaker cannot be closed
remotely, but can be closed locally
Secondary contact wiring problem
Check for correct installation of
pins and sockets and that plug is
properly connected
Controller wiring problem
Inspect for loose wires into con-
troller
A voltage is being supplied to close
circuit
A dry contact must be used to
close the circuit breaker remotely
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