SCR Heater Controller 550KW 825A Three-Phase Power Regulator for Electric Furnaces

$4,066.00 USD
Shipping fees will be calculated at checkout.
Quantity
How to Order from SoftStarterPro? We support both direct online orders for our standard series and custom engineering for specialized projects.
  • Direct Purchase: Ready to ship or quick delivery available for standard configurations.
  • Custom Quote: For non-standard specs, cabinets, or bulk project pricing, our engineering team is ready to help.
How to Order from SoftStarterPro? We support both direct online orders for our standard series and custom engineering for specialized projects.
  • Direct Purchase: Ready to ship or quick delivery available for standard configurations.
  • Custom Quote: For non-standard specs, cabinets, or bulk project pricing, our engineering team is ready to help.
Correct Model Selection for Your Project
Project & Ordering FAQs
Specification
  • Model: LS-SCR-550KW
  • Current: 825A
  • Voltage: AC380V±15%
  • Dimension: 640*480*295MM
  • Gross Weight: 37KG
📄 Technical Support & Downloads

Product Description :
The SoftStarterPro LS-SCR 550KW SCR power regulator is a specialized 825A three-phase AC controller designed specifically for electric furnace heating systems. This advanced regulator ensures precise temperature management and reliable performance in high-temperature industrial environments.

Key Features

  • Dual-core MCU control with built-in PID closed-loop regulation for 100% linear output, optimized for furnace-grade thermal regulation
  • Customizable four-line LCD display, freely configurable to show input, output, voltage, current, or power
  • Parameter save + one-key factory restore, retains settings after debugging
  • Customizable output relays, function assignable via menu (fault signal or run status)

General Technical Parameters:

Parameter Value
Rated Capacity (Model Designation) LS-SCR-550KW / 825A / 380V
Recommended Load (Resistive, with 1.3× safety margin) ≈423.1KW / ≈634.6A — do not exceed this value in continuous operation
Control Modes Constant voltage / constant current / constant power / open loop / cycle zero-crossing / fixed-cycle zero-crossing
PID Parameters Proportional, integral, differential coefficients (keypad adjustable)
Signal Input DC 0-20mA / 4-20mA (AI1), 0-5V / 0-10V / potentiometer (AI2)
Communication RS485, MODBUS RTU
Protection Functions Phase failure, thyristor breakdown, load overcurrent, load disconnection, radiator overheat, three-phase current imbalance
Display LCD, 4 lines, customizable parameter display
Cooling Heatsink + dual built-in DC cooling fans
Enclosure Protection IP20
Control Method Terminal control, keypad control, communication control, or keypad + communication
Minimum Test Load >0.6A
Operating Temperature 0~40°C (max 60°C; above 40°C, rated current derates 1.2% per °C)
Humidity ≤90% RH
Warranty 18 months

Application

  • Electric furnace heating systems
  • Industrial furnace control
  • High-temperature processing
  • Thermal treatment equipment
  • Industrial heating installations

Note
This furnace regulator requires proper thermal management systems. Ensure compatibility with heating elements and follow high-temperature safety protocols. Not suitable for inductive loads such as motors or transformers — designed for resistive heating loads only.

Can't Find the Exact Model?

Our engineers can customize voltage, current, and configuration for your project.
Our engineers can customize voltage, current, and configuration for your project.
Request a Custom Quote