Littelfuse MPU-32-01-00 is a conformally coated multifunction protection relay with a frequency range of 50, 60, and ASD. It features 3 Form C relay contacts with fail-safe/non-fail-safe operation. The device supports IEEE device numbers 37, 38, 46, 49, 50, 50G, 50N, 51, 51G, 51N, 66, 74, 86, 87. Resetting is enabled through front-panel switch or remote N.O. contact. Other features include standard harmonic filtering (DFT), GF trip time of 0.0-100.0s, supply voltage AC of 65-265, supply voltage DC of 80-275, communications via RS/TIA-232 and RS/TIA-485, analog output current range of 4-20mA, GF trip level range of 5-100% of CT-Primary Rating, single temp sensor configuration (expandable to 25 with PGA-0120), and 1 digital input.