Opening, Closing, and Resetting the Circuit Breaker
Opening and Closing Locally
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To close the circuit breaker, turn the rotary handle clockwise from the O (OFF) position to the I (ON) position.
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To open the circuit breaker, turn the rotary handle counterclockwise from the I (ON) position to the O (OFF) position.
Resetting After a Trip on Electrical Fault
The circuit breaker has tripped on electrical fault, the rotary handle has moved from the I (ON) position to the Trip position.
 WARNING |
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HAZARD OF CLOSING ON ELECTRICAL FAULT
Do not close the circuit breaker again without first inspecting
and, if necessary, repairing the downstream electrical equipment.
Failure to follow these instructions can result in death, serious injury, or equipment
damage.
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The fact that a circuit breaker has tripped does not remedy the cause of the fault detected on the downstream electrical equipment.
To reset after a fault trip:
|
Step |
Action |
Position |
|
|---|---|---|---|
|
1 |
– |
Isolate the feed before inspecting the downstream electrical equipment. |
Trip |
|
2 |
– |
Look for the cause of the detected fault. |
Trip |
|
3 |
– |
Inspect and, if necessary, repair the downstream equipment. |
Trip |
|
4 |
– |
Inspect the equipment in the event of a short-circuit trip. |
Trip |
|
5 |
Reset the circuit breaker by turning the rotary handle counterclockwise from the Trip position to O (OFF). |
O (OFF) |
|
|
6 |
Close the circuit breaker by turning the rotary handle clockwise to I (ON). |
I (ON) |
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