Main features & Overview


In industrial electric heating applications the use of modular and robust SCR power controllers allows to safely and immediately control the different heat treatment processes.

The GFW Power Controller range from 40 to 300A, offers a robust control solution with simple and safe diagnostics and a complete integration into existing factory automation systems.

The ease and flexibility of configuration, with dedicated wizards, allow a safe and fast use in all situations.

A special attention has been focused on the size of the product, which position it as the most compact on the market, ensuring its use even in extremely limited installations.


  • Current rating from 40A to 300A
  • Voltage rating 480Vac , 600Vac, 690Vac
  • Single, Two and Three phase
  • Firing mode configuration “Zero crossing” (Fixed Cycle, Burst Firing, Half single Cycle) or “Phase angle”
  • Configurable analogue inputs: mA, V, Potentiometers, digital (PWM)
  • Configurable retransmission analogue outputs: mA, V
  • Current limit
  • Feedback V, V2, I, I2, P
  • Fieldbus: ProfiNET, Profibus DP, Modbus-RTU/TCP, Ethernet/IP, EtherCAT, CanOpen,
  • GF_eXpress configuration tools
  • SCCR UL 508 100KA



GFW - Flyer
Gefran product range brochure
Power control
4.0 Gefran product catalog
GFW datasheet
Catalog Read Me
GF_eXpress ReadMe
GF_eXpress UserGuide
HW - Installation and Operation Manual for GFW400…600A
HW - Installation and Operation Manual for GFW40…300A
SW - Programming and Configuration for GFW400…600A
SW - Programming and Configuration for GFW40…300A
GFW - Quick start guide for GFW400…600A
GFW - Quick start guide for GFW40…300A
Modbus Memory Map for GFW400…600A
Modbus Memory Map for GFW40…300A
Catalog ver. 2.91.0
GF_eXpress ver 2.1.39
GFW-1PH 150/300A
GFW-1PH 400/600A
GFW-2PH 150/300A
GFW-2PH 400/600A
GFW-3PH 150/300A


CSA Certifications - GTF, GFW
SCCR 100KA – GFX4, GFX4-IR and GFW
UK Conformity declaration - GFW
SCCR 100KA – GFX4, GFX4-IR and GFW