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Power Controllers | Power Switching & Control | Process Control & Automation Products


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Gefran GFX4 Power controller single loop PID up to 120A, master/slave


An integrated system for industrial electric heating processes that efficiently controls power and temperature in multizone plants. It includes a control unit with a PID microprocessor controller and load control devices (AT and VT) and a power module (SSR) with an aluminum heat sink. The system is compact and user-friendly.

    • Three versions:

MASTER – independent temperature control and communication unit
SLAVE – independent temperature control unit
EXPANSION – for three-phase loads

    • SSR (Solid State Relay) zero crossing
    • Rated voltage: 480Vac rms, 50-50Hz
    • Rated current (AC1): 25A, 40A, 60A, 90A, 120A

Product Overview:


  • Protection: IP20
  • Installation: DIN bar and panel
  • Universal temperature input, accuracy 0.2%
  • Configurable digital input
  • Logic output or "cooling" relay
  • Load current detection with integrated CT
  • Heat/cool PID, selection of cooling fluid, self-tuning, auto-tuning, soft-start
  • 4 generic alarms, LBA and HB alarms
  • 2 configurable relay outputs
  • Serial: RS485 optically isolated "Modbus RTU" serial protocol
  • Field bus: PROFIBUS DP, CANopen

Main applications

  • Plastic extruders
  • Plastic injection presses
  • Blowers
  • Plastic and rubber processing machines
  • Wrapping machines
  • Packaging machines
  • Thermal processes with electric heating

Supplier link:

Data Sheets