Power Controller – REVEX PA

REVEX PA thyristor (SCR) power controllers are ideal for switching 3 phase inductive loads that require phase angle firing, with or without current limit.

  • Ideal for 3PH transformer loads requiring phase angle firing
  • Perfect for ‘special’ element types such as MoSi2 and SiC
  • Robust design manages high current peaks typical of ultra short wave lamps
  • Available in 4 current sizes, 35A, 50A, 75A and 90A
Availability: In stock SKU: REVEX-PA GET A QUICK QUOTE



The New REVEX PA thyristor (SCR) power controllers are ideal for switching 3 phase inductive loads such as transformers that require phase angle firing, and normal resistance or short, medium or long wave infrared lamps.

REVEX-PA can be controlled via 4-20mA, 0-10V or DC logic (SSR) direct connection inputs, or from a PLC / software system and Modus RTU.

REVEX PA Firing Example


  • Optimised for 3 phase inductive loads (i.e. primary of a transformer) and variable resistance loads (MoSi2 and SiC elements)
  • Robust design manages high current peaks typical with ultra short wave lamps
  • Total flexibility to change spec with ability to reconfigure control input signal, firing and feedback types via the front panel, or free configuration software & USB port
  • Connect seamlessly with your management software 24/7 with the most popular Fieldbus systems
  • Small footprint optimises cabinet space
  • Easily configure and setup the unit with free simple and intuitive software
  • Excellent cost/performance ratio with ability to choose or deselect specific options


  • Designed for 3PH inductive (transformer) load types.
  • Current Limit feature.
  • Also controls short, medium and long wave infrared lamps and normal & variable resistance load types.
  • Available in 3 phase (3 or 4 wire) configurations.
  • Firing modes include Zero Cross (ON/OFF), Burst Firing, Phase Angle & Delayed Triggering.
  • Feedback types include voltage, current, power or V2 and I2 with VxI transfer.
  • Control through RS485 RTU communications (or fieldbus systems).
  • Available in 4 amp sizes 35A, 50A 75A & 90A and 2 voltage sizes, up to 480V and up to 600Vac.
  • Plug and play PC configuration software
  • Real character organic LED display intuitively provides setup and process data


Suitable for Load Types

  • Normal Resistance
  • Transformer Coupled with Variable Resistance
  • Short Wave Infrared Lamps (SWIR)
  • Medium and Long Wave Infrared Lamps
Product Name Thyristor Power Controller - REVEX-PA
Ideal For Inductive (Transformer) loads, Normal & Variable resistance and short, medium and long wave infrared lamp loads
Load Type Three Phase (3 and 4 wire)
Controlled Phases 3
Current Size 35A, 50A, 75A and 90A
Voltage Power Supply From 24V to 480Vac (Standard) or 600V as option
Firing Types Phase Angle (P), Delayed Triggering (D), Burst Firing (B) and Zero Cross Firing (Z)
Input Signal SSR, 0-20mA, 4-20mA, 0-10V, 10K Pot, RS485 RTU Communications
Communication Modbus RTU as standard, Profibus DP, ProfiNet IO or Ethernet IP as option
Feedback Type Open loop, Voltage, Current, Power (VxI), V2, I2, External Feedback
Options Current Limit & Heater Break Alarm as options.
Display, Internal Fuses & USB Port as standard
Configuration Software Yes
Approvals EMC approved
Altitude Over 1000m of altitude reduce the nominal current of 2% for each 100m
Auxiliary Voltage Supply 24Vdc
Heater Break Alarm To diagnose partial or total load failure with automatic setup, relay alarm output and LED indication
Voltage Frequency Automatically from 47 to 70 Hz
Humidity From 5 to 95% but without condensation or surface ice
Mounting DIN-rail & Screw mounting
Panel Sealing IP20
Storage Temperature -25 °C to 50 °C Max



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