Note: This rule applies only when the circuit breaker is used as the switch. If a general-use snap switch or contactor is used to control the lighting, this rule doesn't apply. UL 489, Standard for ...

I discovered this useful tip after some trial and error and many, many trips up and down the two flights of stairs in my home: Once I’ve determined which circuit that a switch or outlet belongs to, I ...

Based on our testing, we confirmed the B-TRAN®-based circuit breaker design meets or exceeds all of the customer-defined target specifications. The SSCB prototypes were then shipped to the ...