Littelfuse, Inc. SYMC Protection Relays 460-575

The 460-575 is a three-phase voltage monitor designed to protect 475-600 V ac, 50/60 Hz motors. It automatically senses line voltage and detects harmful conditions including low, high, and unbalanced voltage, phase loss, and phase reversal. It features a 1-30 second adjustable trip delay, a 1-500 second restart delay, and a Form C output relay. The unit is housed in a polycarbonate enclosure, measures 88.9 mm H × 52.9 mm W × 59.69 mm D, and mounts on 35 mm DIN-rail or via #6 or #8 screws. It complies with UL508 and IEC 60947-6-2 standards and operates in ambient temperatures from -20° to 70 °C.