Power Assemblies and Controllers

Firing Circuits/Trigger Modules

Phase Angle Firing Circuits & Power Modules

This range of single phase firing circuits & power modules use variable phase angle control to deliver a 0-100% adjustable output to the load. Some versions have adjustable signal matching and selectable soft start. For all but the MAT, the power transformer is remote for increased reliability and wide operational voltage capacity. Suitable for most AC resistive and inductive loads via a triac or thyristor on single phase to neutral or phase to phase supplies within voltage limits.

Burst Firing Circuits & Power Modules

This range of single phase & three phase firing circuits & power modules all operate in Burst-Fire or Logic mode, suitable for most resistive loads. Phase timing problems are eliminated. The burst firing circuit provides trigger pulses coincident with the mains polarity crossover, ensuring complete sine wave cycles are passed through the resistive load. This inhibits RFI. Suitable for virtually all resistance heating loads including ovens, furnaces, hot plates, extruders, molders & space heaters.


  Standard data sheets

  BM3R 3Ph 1leg Single Cycle
  BM3R 3Ph 2leg Single Cycle






Dual Mode Firing Circuits & Power Modules

This range of microprocessor based trigger modules & programming modules have two modes of triggering control, phase angle and burst firing, either can be selected separately. The modules can also used for soft starting in phase angle and they will automatically switch to burst fire mode when the control signal has reached a preset level.


  Standard data sheets

  DMFC-12 (110v) FC
  DMFC-12 (230v) FC
  DMFC-12 (415v) FC
  FC36M (400v)
  FC36M (400v) DIN HOUSING
  FC36MV (400v)
  FC36M/MV Commander Module

  FC36M (400v) - User Manual
  FC36MV (400v) - User Manual
  FC36M/MV Commander Module - User Manual




For more information, data sheets and pricing, please call the sales team on 01444 243452.


United Automation

United Automation is one of the UK's leading manufacturers of industrial power control products. They have achieved this position as a result of our technical strengths and a dedication to customer service.

Further information:

You can find further information on United Automation using the following links:

United Automation Website