3 Phase Thyristor TG20-30KW SCR Power Controller 380V 45A

roduct Description:
The SoftStarterPro TG20-G is a compact intelligent three-phase thyristor power controller with enclosed main-circuit terminals and built-in forced-air cooling, engineered for industrial heating systems requiring precise, closed-loop power control in a space-saving design.

Key Features:

• Enclosed Terminal Design: Main-circuit input/output terminals are recessed into the housing, reducing exposure to live parts
• Six Control Modes: Constant voltage, constant current, constant power, open loop, weekly zero-crossing, constant-period zero-crossing
• Adjustable PID Control: Proportional, integral, differential coefficients, keypad configurable
• Signal Input: 4-20mA, 0-5V, 0-10V, PWM (1-10kHz, 5-24V), 10V/PWM potentiometer — for external temperature controller/PLC integration
• RS485 Communication: Modbus RTU for remote monitoring and control
• LCD Display: Three lines of current, one line of voltage
• Built-In Cooling Fan: Heatsink with forced-air cooling, standard equipment
• Six-Way Protection: Phase loss, thyristor breakdown, overcurrent, load disconnection, overheating, three-phase imbalance
• Fault Record: Stored fault history, viewable/clearable via keypad

General Technical Parameters:

Application:

• Industrial Furnace and Kiln Temperature Control
• Large-Scale Heating and Thermal Processing Systems
• Manufacturing Process Heating Lines
• Applications Requiring Closed-Loop Power Stability

Note:

• Ratings are based on 380V three-phase input. For 220V, 440V, or 690V, contact us for a custom configuration — power, current, and recommended load values will differ.
• Do not connect capacitors to the output (U/V/W) terminals.
• Cut off input power before servicing. Both the upper and lower terminals remain energized when the input side is live.
• Keep the cooling fan and heatsink clear of obstruction for continuous operation.