Control Board Power Supply 

and Power Consumption

Power Supply: 380V AC ±10% 50HZ, requires same phase as load power supply 

Power Consumption: 5W maximum

Fan Power Supply

(depending on model)

Wiring required: 5 and 6 terminals of a six-wire terminal strip

Voltage: 220V AC 50/60Hz，20W/pcs.

Current: Below 0.5 A 

Input Indicator LED (1): Red 

Three-color Status LED (1): Green, Running (output on) 

                   Yellow flashing, Stopped (no output)

                     Red, overcurrent 

  Red-green flashing, Heat sink overtemperature alarm (no output)

Phase Control: Continuous voltage regulation

Power Control: Resistive cycle zero-crossing power regulation

PWM zero-crossing power regulation

0～175°, Star load (center point grounded) 

0～150°, Delta load or Star load (center point ungrounded)

With single silicon anti-parallel thyristor module Variable width pulse: 8°~120°  

Voltage: 5V   Current: 100mA maximum

Adjusted by onboard P1 potentiometer or external 10KΩ potentiometer.

Adjustment range: 0~100%

When the radiator is over-temperature and the current is overcurrent, it operates

Specification: 1 normally open contact, 1A 250V AC resistive
Output terminals: CN2-1, CN2-2

When the alarm is activated, the control output will stop urgently 

Action time: < 20ms 

Disable: After the alarm is dismissed, enter the standby state or power on again

The fan is connected to a normally open temperature switch at 40°C. When the heatsink temperature is below 40°C, the fan does not rotate, ensuring the fan's lifespan. 
Fan power supply: 220V.

Start/Stop Switch

(External Switch)

R1 terminal: CN1-3 terminal, RS terminal: CN1-8 terminal.
R1 - RS terminal: Voltage-free contact input.
Short-circuit voltage regulation (factory setting): slow shutdown, open circuit: slow start

ower regulation/voltage regulation/constant 

current switching

(SW1 DIP Switch)

Constant current control

 + current limiting

Current Limiting: Adjusted by the onboard P4 potentiometer or an external current-limiting potentiometer.
Adjustment Range: 20% to 100%. To cancel current limiting: Turn the P4 potentiometer to maximum or remove the external current-limiting potentiometer.
Constant Current Control: SW1-1 = ON, SW1-2 = OFF
During constant current control, it is not possible to test with a dummy load (because the load current is too small).
In this case, only open-loop testing is possible (SW1-1 = ON, SW1-2 = ON).

Insulation Resistance:
Between module output terminals and casing: 500VDC, minimum 20MΩ
Between control board power terminals and casing: 500VDC, minimum 20MΩ
Between control input terminals and casing: 500VDC, minimum 20MΩ
Between control board input terminals and power terminals: 500VDC, minimum 20MΩ
Dielectric Strength:
Between module output terminals and casing: 2000VAC, 1 minute
Between control power terminals and casing: 2000VAC, 1 minute

Selection Guide for Imported Three-Phase Power Controller Modules

Input Signal: 4-20mA (input impedance 100Ω), Output Mode: Voltage regulation or cycle power regulation.Features include soft start and shutdown upon power-up, overheating alarm for the heat sink, and seamless manual-automatic switching. Suitable for star-grounded, ungrounded, or delta-connected inductive and resistive loads, equipped with current limiting and overcurrent protection. Effectively controls silicon carbide rods, silicon molybdenum rods, heating tubes, nichrome wires, transformers, etc.

Load power

 (resistive)