The LineGard PGFM GFCI Sensing Module is a ground fault or equipment leakage sensing device designed and manufactured by North Shore Safety, a leader in innovative safety products. The PGFM operates in tandem with an approved Airpax LEL Series, UL 489 listed circuit breaker, with shunt trip and auxiliary switch. The combined assembly is recognized as a Class A UL 943 rated device. The sensing module is available in models to operate at supply voltages of 120 VAC or 240VAC and can monitor single and split phase circuits. These devices meet the requirements of OSHA 29 CFR1926.404 (b)(1)(ii) and OSHA 29 CFR 1926.405 (a)(2)(ii)(G).