V

YOU MUST READ THIS BEFORE INSTALLATION

ELECTRICAL SAFETY

INSTALLATION REQUIREMENTS

USER RESTRICTIONS

USAGE ENVIRONMENT

HOT SURFACE WARNING

WARNING: RISK OF ELECTRIC SHOCK

Always consult the Installation & Maintenance Instructions

before connecting this product to the power supply.

WARNING: Disconnect Power Before Servicing

Ensure the electrical supply is safely disconnected before

connecting to any supply, load, or control terminals.

WARNING: Installation by Qualified

Personnel Only

This product must only be installed or fitted by

a competent, qualified installer familiar with

the relevant electrical standards and

installation practices.

WARNING: Not for Use by Vulnerable Individuals

This product is not intended for use by persons

(including children) with reduced physical, sensory or

mental capabilities, or lack of experience and

knowledge, unless they are supervised or instructed

by a person responsible for their safety.

WARNING: Industrial Use Only

This is an industrial-grade product

and is not intended for household

use.

WARNING: Hot Surfaces

On certain models, surfaces marked

with this symbol become hot during

use. Avoid direct contact and follow all

thermal safety precautions.

More Info: https://united-automation.com/general-product-safety-regulation-gpsr/

1 July 2025 | Issue: 5 Page

1 of 2

TRIAC DRIVERS

FC36MV DUAL Mode Firing

X10622

110V, 230V, 400V

High Power Three Phase Thyristor Driver

0044 (0) 1704-516 501

enquiries@united-automation.com

www.united-automation.com

CONTACT US:

KEY FEATURES:

The

FC36MV Dual Mode Firing, High-Power 3-Phase Thyristor Driver is a

sophisticated, microprocessor-based firing circuit designed for seamless

integration into three-phase power control assemblies. This populated PCB is

ideal for controlling thyristors (SCRs) in high-power industrial applications.

Available in various supply voltage configurations, the FC36MV minimises phase

wiring complexity with its simplified gate/cathode outputs, eliminating the need for

external phasing transformers. The versatile driver offers a wide array of

selectable features, ensuring precision control and reliable performance.

Optimise your industrial power control solutions with the FC36MV, the ultimate

high-power thyristor driver designed for precision and reliability in demanding

environments.



Auto Phase Rotation

Correction & Phase-Loss

Detection.



Switch-Selectable Phasing

Reversal.



Versatile Control Modes:

Phase-Angle, Burst-Fire,

Combination



Opto-Isolated

Analogue/Digital Input

Options.



Load Type Selection

Switch: Tailors

performance for resistive or

inductive loads.



LED Status Indicators:

Provides real-time

operational feedback.



Current Limit & Over-

Current Protection.



Adjustable Ramp Control:

Smooth startup with

0-30 seconds delay.

TECHNICAL SPECIFICATIONS

Nominal Supply Voltages (±10%)

110V, 230V, 400V, or 440V AC @

50/60Hz

Primary Fusing

Three HRC-F1A (ceramic 20 x 5mm)

Current Consumption

650mA (Full Conduction)

Initial Short Circuit Gate Current

750mA

Sustaining Short Circuit Gate Current

400mA

Initial Pulse Voltage

9V

Sustaining Pulse Voltage

5V

Pulse Train Frequency

25kHz

Trigger Mode – selected by input

Burst Fire and Phase Angle

Voltage Signal into 10KΩ/20KΩ

0-5V DC/10V DC

Current Signal into 270Ω

4-20mA

Opto-isolated Inputs

5-24V DC

Adjustable Ramp Control from Power

Up

0-30 seconds

Control Limit or Over-current Trip

0-5V DC

Load Type – selected by switch (SW4)

Resistive or Inductive

Operating and Storage Temperature

Range

0°C to +65°C

Overall Dimensions

Firing Circuit Board (PCB) only

(L x W x H) (mm)

203 x 108 x 40

Fixing Centres of PCB

(6 x M3.5mm holes)

2 rows (75mm apart) of 3 holes

(96.5mm between each)

Firing Circuit with DIN-rail Enclosure

(L x W x H) (mm)

207 x 128 x 70

APPLICATIONS:

Universally compatible with AC,

DC, resistive, or inductive loads

via thyristor pairs in three-

phase assemblies. Its SCR

power handling capabilities

provide smooth, proportional

control across various industrial

processes, including furnaces,

electroplating, controlled

rectifiers, and transformer

management.