Littelfuse EL731-13-10 is a conformally coated relay with 3 Form C (N.O./N.C.) contacts. It operates in fail-safe and non-fail-safe modes, with IEEE device numbers from 38 to 79. The reset type can be done using a front-panel switch or a remote N.O. contact. It provides standard harmonic filtering and can be used in solidly grounded AC, solidly grounded DC, and resistance grounded AC systems. It operates at a supply voltage of 24VAC or 48VDC. The reset options include latching trip and non-latching alarm. It supports EtherNet-IP communication and offers a wide GF trip level range of 0.03 to 5.00A. It comes with a single PTC/RTD temperature sensor configuration and can be mounted using DIN, panel, or surface methods.