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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.
  • Ac input voltages from 65 V ac to 265 V ac
  • Dc input voltages from 18 V dc to 32 V dc and 80 V dc to 275 V dc
  • Remote monitoring at up to 1.2 km from equipment being monitored
  • Conformally coated
  • DIN rail-mounted, panel-mounted, and surface-mounted versions available
  • 3-, 5-, and 8-contact versions available
  • 5- or 10-year warranties

Input Modules Parts

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Input Modules Applications

Highlights Section

  • Motor protection
  • Pump protection
  • Voltage monitors