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FC36MV (400v) Dual Mode Firing Board

SKU A34428 Category

Three phase Dual Mode Firing circuit

£536.48 ex. VAT

Quantity discounts
1-4 5-9 10-19 20+
£536.48 £509.66 £484.17 £460.03


  • Power Supplies
  • Half and Fully controlled Rectifiers
  • AC Motor Control
  • DC Motor Control
  • Soft Starters
  • Heater Controllers
  • Induction Generator
  • AC Voltage Regulation
  • Three Phase Transformer Control


Additional Firing boards can be configured to trigger paralleled SCR’s for very high current applications or to provide a twelve pulse driver for smooth DC control

Optional Extras

Din rail housing (W30105)

Commander module (A402131)

Signal conditioning board (A402086)

Thyristor modules, fuses & complete assemblies.


Thyristors require a high initial gate current pulse and comparatively wide sustaining pulses to ensure reliable firing, particularly at small phase control angles. The FC36MV provides the following firing specifications

  • Gate Drive: Picket Fence with a PRF of 25Khz

an initial firing pulse of; 10 volts open circuit. 750 mA into 10 Ohm, and sustaining pulses 400mA into 10 Ohm per output. The sustaining pulses are 20 uS Wide.

  • High output initial triggering pulses
  • Gate isolation to 3500 V rms.
  • Adjustable Soft start and soft start times
  • Selectable hard start and hard stop
  • 50/60 Hz operation auto selection
  • Remote Logic input for control in noisy environment 5-24 V dc
  • 3 analogue control inputs 0-5V, 0-10V dc and 4-20mA
  • Current control input 0-5V dc
  • Over-current limit trip (Latching)
  • Adjustable ramp control 0-30 seconds
  • Pre-selectable or automatic Phase Angle to Burst Fire control
  • Switchable Phase reversal
  • Selectable Inductive or Resistive load setting
  • Selectable timing delay for use as a twelve pulse driver
  • High immunity to mains voltage distortions
  • Complete with integral supply transformer.
  • Closed loop current or voltage control via optional remote programmer and signal conditioning board

Additional information

Download the technical document for this product below.

Download Technical Datasheet
Weight 1 kg
Technical Support
customer service United Automation

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