SCR power regulator
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Three-Phase Intelligent Digital Power Regulator

The SCR-6 Series is a high-performance, three-phase intelligent digital power regulator designed for precise control of resistive loads in industrial heating applications. Featuring a compact design with an integrated heatsink and cooling fans, the SCR-6 offers a reliable and cost-effective solution for thermal process automation.

  • Brand:

    PIDMaxWell
  • Item no.:

    SCR-6
  • Payment:

    T.T, Credit Card, Paypal etc, to be negotiate
  • Market price:

    $300
  • Price:

    $200
  • Product origin:

    Made in China
  • Min order:

    10
  • Product weight:

    2kg
  • Lead Time:

    14 days after payment confirmed
  • Ordering code:

    SCR-6

Key features

  • Intelligent Digital Control: Equipped with a clear LED display for real-time monitoring of output ratio, status, and error codes.
  • Universal Input Compatibility: Supports all standard analog signals including 4-20mA, 0-10Vdc, 0-5Vdc, and more.
  • Enhanced Protection: Built-in soft-start function protects the SCR and load from surge currents; includes phase absence detection and over-temperature alarms.
  • Flexible Configuration: Features adjustable maximum/minimum output limits and configurable output buffer (soft-start) range.
  • Communication Ready: Optional RS-485 Modbus RTU communication for seamless integration into PLC or HMI systems.
  • Robust Design: Integrated high-efficiency cooling system with temperature-triggered output constraints for maximum safety.

 

Technical Specifications

Feature Specification

Load Phase

Three-phase

Rated Load Voltage

200 ~ 480Vac (50/60Hz)

Auxiliary Power Supply

220Vac (Standard) / 24Vdc (Optional)

Rated Current Options

40A, 60A, 75A, 100A

Input Signals

4-20mA, 0-10Vdc, 0-5Vdc, 1-5Vdc, 2-10Vdc, 0-20mA, 0-10mA

Control Mode

Phase angle control

Load Type

Resistive load only (Delta or Star configuration)

Protection

Phase absence, Over-temperature, Surge current (Soft-start)

Communication

RS-485 Modbus RTU (Optional)

Display

Dual-line LED display for parameters and status

 

 

SCR - [1] [2] [3] [4] [5] [6] [7]

Code

Parameter

Options

[1]

Series

6: SCR-6 Series Digital Regulator

[2]

Load Phase

3: 3-Phase

[3]

Load Current

4: 40A / 6: 60A / 7: 75A / 1: 100A

[4]

Power Supply

2: 220Vac / D: 12-24Vdc

[5]

Input Signal

8: 4-20mA / 6: 0-10Vdc / 5: 0-5Vdc / 7: 1-5Vdc / 3: 2-10Vdc / 2: 0-20mA / 1: 0-10mA

[6]

Alarm

N: Without Alarm / M: With 1 Over-temp Alarm

[7]

Communication

N: Without RS-485 / M: With RS-485 Modbus RTU

Example: SCR-63128MM (SCR-6 Series, 3-Phase, 100A, 220Vac Supply, 4-20mA Input, with Alarm and RS-485)

Click below link to download catalog for SCR-6 Power Regulator

 

 

 

 

This video demonstrates a test we did on Maxwell SCR 3 phase power regulator The instruments you are able to see right away is an oscilloscope which shows the square wave of the load, the one our test engineer holds on hand is a standard signal generator which generates 4-20mA standard input signals, we feed the SCR with a small input and gradually increase the input, as you can see from the video, The lights in the video turned brighter as the input increase. And the 3 voltage meter shows the voltage of each phase, Voltage of each phase increases from 0V to somewhere close to 380Vac, other features like soft-start, minimum and maximum output, manual control, over temperature protections are also available with this SCR. RS-485 Modbus communication are also available

 

 

 

 

 

  • Industrial Furnaces & Ovens: Precise temperature control for heat treatment and drying processes.
  • Plastic Machinery: Heating control for extruders, injection molding machines, and blow molding.
  • Packaging Equipment: Heat sealing and shrink-wrap heating elements.
  • Glass & Ceramics: Kiln temperature regulation and annealing lehrs.
  • Chemical & Food Processing: Tank heating, jacketed vessel control, and food dehydration.
  • HVAC Systems: Electric duct heaters and industrial space heating.
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