Littelfuse PGR-4700-120 is a versatile product suitable for solidly grounded AC systems. It features two Form C relay contacts that support fail-safe/non-fail-safe operations. With optional conformal coating and standard harmonic filtering, it ensures reliable performance. The reset type is a front-panel switch, and it offers a latching/autoreset option. Monitoring capabilities include CT loop monitoring, while front-panel test buttons provide convenience. The device operates at a supply voltage of 120V AC and has a GF trip level range of 0.01-3.0A with a trip time of 0.0-1.5s. Additionally, it includes IEEE device numbers 50G-50N-51G-51N and an analog output current range of 0-1mA.