Circuit Breaker Testing
NOTE:
To check for correct circuit breaker operation, 2 separate tests are necessary.
- Before connecting circuit breaker to volt-amp tester, short leads together and adjust current draw until it equals circuit breaker rating. Connect breaker to ammeter. Leave breaker connected to tester for 10 minutes. Hold current reading on ammeter at rated current. If circuit breaker opens during 10 minutes, replace circuit breaker.
- Short tester leads together and adjust current draw until it is twice rated current. Connect breaker. Hold current reading on ammeter at twice rated current. Circuit breaker should open and current drop to zero within 30 seconds. If not, replace circuit breaker.