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Voltage measuring and monitoring relay
Marsh Bellofram

The UPA-130 series Universal Voltage Alert is designed to reduce the risk of electric arc flash by pre-verifying the electrical isolation from outside of a control panel before it is re-verified with a meter. It operates over a standard range of 40 to 750 VAC (30 to 1000 VDC) line-to-line or ground-to-ground, is phase insensitive and offers high surge immunity protection. When hardwired to the load side of a circuit breaker or main disconnects, the UPA-130 series flashes upon detection of 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. The compact, 8-detector UPA-130 series offers a potted construction with six-foot leads and is designed to fit a 30mm knockout. Its design includes redundant circuitry and the incorporation of long-life display panel LED's for extended use, with components housed in NEMA 4X, 12 and 13 enclosures.

The UPA-130 series is a reliable safety tool for pre-verification of the presence or absence of residual electrical power or charges, or as a zero energy indicator before or during mechanical lock out/tag out (LOTO) procedures. It can be used to enhance NFPA 70E and OSHA regulatory compliance standards. It is ideal for circuit breaker disconnects, as well as with NFPA 70e Category III and IV high energy panels or as an added electrical safety tool on other types of frequently accessed electrical panels. The UPA-130 is also compliant to CATIII and CATIV standards, and is CE marked and UL-approved in both the US and Canada. For more information, visit www.marshbellofram.com.