Series UPA-130S is designed to reduce the risk of electric arc flash by pre-verifying the electrical isolation from outside of a control panel before its re-verification with a meter. The series operates over a standard range of 40 to 750 VAC (30 to 1,000 VDC) line-to-line or ground-to-ground. It is phase insensitive and offers high surge immunity protection. When hardwired to the load side of a circuit breaker or main disconnects, the power alert device detects stored hazardous AC and DC voltage in any individual phase. After disconnecting power to an enclosure, electricians can pre-verify voltage isolation while an enclosure door is still safely closed.
Marsh Bellofram Corp., Diversified Electronics Division, (304) 387-1200