1 / 6

Power Thyristor Unit 500KW AC380V Three-Phase SCR Controller

Name: Power Thyristor Unit 500KW AC380V Three-Phase SCR Controller
Brand: Lingshine
SKU: LS-SCR-500KW
Price: 3540.29 USD
Availability: InStock

$3,540.29 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.

Description：

SoftStarterPro's LS-SCR-500KW is a power thyristor unit using 32-bit dual-core MCU control with built-in PID closed-loop regulation, engineered for industrial applications requiring precise, multi-mode power control. It shares the same 500-630KW enclosure size within the LS-SCR series, which scales from 16KW to 800KW with unit size increasing by power tier.

Key Features:

Dual-core MCU control with built-in PID closed-loop regulation for 100% linear output
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-500KW / 758.92A / 380V
Recommended Load (Resistive, with 1.3× safety margin)	≈384.6KW / ≈583.8A — 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:

Industrial heating equipment
Resistive load power regulation
Process heating systems
Power regulation for silicon carbon rod / silicon molybdenum rod loads

Note:

Ratings are based on 380V three-phase input. For 220V or 440V configurations, contact us for a custom configuration.
Not suitable for inductive loads such as motors or transformers — designed for resistive heating loads only.
Unused terminals must not be connected.
Cut off input power before servicing — SCR output remains charged even when switched off.
Load must exceed 0.6A for proper operation; testing without connected load is not valid.

Can't Find the Exact Model?

Our engineers can customize voltage, current, and configuration for your project.

Request a Custom Quote