Littelfuse EL731-20-00 is a conformally coated device with 3 Form C relay contacts. It operates in fail-safe or non fail-safe modes and has IEEE device numbers 38 to 51 and 79G. The reset type can be done through a front-panel switch or a remote N.O. contact. It provides standard harmonic filtering and has a GF trip time range of 0.05 to 2.00 seconds. It can be used in solidly grounded AC, solidly grounded DC, or resistance rounded AC systems with a 24V DC supply voltage. The auto/manual reset can be either latching trip or non-latching alarm. The communications option is not available. It supports a GF trip level range of 0.03 to 5.00A. The temperature sensor configuration is single PTC/RTD. It can be mounted using DIN, panel, or surface methods (optional).