Littelfuse EL731-00-00 is a conformally coated relay with 3 Form C contacts (N.O./N.C.). It operates in fail-safe or non fail-safe mode and has IEEE Device Numbers 38-49-50G-50N-51G-51N-79G. It can be reset via a front-panel switch or remote N.O. contact. The product provides standard harmonic filtering and is suitable for solidly grounded AC, solidly grounded DC, and resistance grounded AC systems. It supports supply voltages of 120V/240V AC and DC. It offers latching trip or non-latching alarm, with a trip time range of 0.05-2.00 seconds. It includes a single PTC/RTD temperature sensor and can be mounted using the DIN, panel, or surface methods. No communications feature is available. The ground fault trip level ranges from 0.03 to 5.00A.