Opening, Closing, Resetting and Testing a Circuit Breaker with a Side Rotary Handle
Opening and Closing with the Side Rotary Handle
Open and close a circuit breaker with a side rotary handle in the same way as for a circuit breaker with an extended rotary handle (see Opening and Closing with the Front Extended Handle).
Resetting with the Side Rotary Handle After a Trip
After a trip, reset a circuit breaker with a side rotary handle in the same way as for a circuit breaker with an extended rotary handle (see Resetting with the Front Extended Handle After a Trip).
Testing the Trip Mechanism with a Side Rotary Handle
HAZARD OF NUISANCE TRIPPING
Circuit breaker tests must only be done by qualified electrical personnel.
Failure to follow these instructions can result in injury or equipment damage.
When testing the trip mechanism, take precautions against:
Activating inappropriate alarms
Triggering unwanted actions
For example, tripping the circuit breaker with the push-to-trip button can lead to inappropriate fault indications or corrective actions (such as switching to an alternate power source).
There is no push-to-trip button on the door of a circuit breaker with a side rotary handle. To check the trip mechanism, the door must first be opened.
Follow these steps to test the trip mechanism.