If the amperage load on any given common lug exceeds 25 amps, the circuit breaker will trip. Test the amperage load on all cables on each common lug using an amp clamp. The digital amp clamp should be set on the 200 Ã setting. Test each individual cable on each common lug with the amp clamp. To remedy an overload, either reduce the wattage of the lamps in the fixtures or rebalance the amp load between commons. Remember, each common can handle a maximum of 25 amps.
Using the digital amp clamp, turn the clamp on to the 200 Ã setting.
- Clamp around the cables on each common.
- Clamp each individual wire on each common.
- A reading over 25 amps on any given common indicates circuit overload. This is not a transformer problem; it’s an installation issue.
NOTE: Each circuit breaker is designed for 300W of fixtures on each common lug. If you have more than 300 watts of fixtures, the circuit will trip and not send voltage down the wire path. The transformer may take a little time before it trips.