Littelfuse, Inc. MPU-32 Series - Motor Protection Unit MPU-32-02-00

The MPU-32-02-00 is a motor protection unit for three-phase, low-voltage induction motors, providing current and temperature-based protection, metering, and data-logging. It supports standard TIA-232 and optional DeviceNet communications, and accepts phase current transformers via an external MPU-CIM module. The unit operates on 65-265 V ac or 80-275 V dc, has a 24 V dc source for digital inputs, three programmable Form C output relays, and a 4-20 mA analog output. It is conformally coated, panel-mounted by default, and meets CSA, UL, CE, and RCM certifications. The relay includes protections for overload, ground fault, phase loss, imbalance, jam, undercurrent, and temperature via RTD or PTC inputs, with a 10-year warranty.