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

PAC60A Three-Phase Power Controller Selection Guide

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)

Mounting hole spacing:222*343mm, 

hole diameter 8mm