Input Modules

Current and temperature input modules acquire and share information used by protection and control relays. In addition to resistance temperature detectors (RTDs), the modules include sensing circuits that detect current unbalance, ground faults, overloads, overcurrent events, overvoltage events, phase differential, phase loss, phase reverse, undercurrent events, and undervoltage events. Each Littelfuse input module can be mounted remotely, used in hazardous environments, and interface with multiple types of relays.