Feature: 1. Internal Settings: 3 phase AC solid state regulator internally integrates 3 phase electrical phase detection, phase shifting circuit, trigger circuit and 3 sets of anti parallel thyristor, no external synchronous transformer. 2. Simple Signal Control: 0‑5vdc, 0‑10vdc, 4‑20mA signal automatic control or external potentiometer (10K) manual control, which can realize the stepless adjustment of the 3 phase load voltage from 0V to the full voltage of the grid. 3. Powerful Characteristics: Has the characteristics of input and output photoelectric isolation, phase shifting voltage regulation circuit and main circuit integration, high control power, high insulation voltage, etc. 4. Automatic and Manual Control: The voltage change at the input terminal can be used to realize automatic control of the load power at the output terminal, and a potentiometer can be used to manually adjust the output power. 5. Wide Applications: Widely used in industrial electric furnaces, electric ovens, lighting, primary side voltage regulation of transformer and other equipment for temperature, light, voltage regulation and other controls. Specification: Item Type: Solid State Voltage Regulator External Power Supply: No need Manual Control: 10K potentiometer Analog Control: 4-20ma, 0-5V, 0-10V LED Display: Yes Load Voltage Range: 380VAC On State Voltage Drop: Less than 1.5V Minimum Conduction Current: Greater than 50mA Off State Leakage Current: Less than 10mA Frequency Range: 45-65Hz Turn On Time: 10ms Turn Off Time: 10ms Medium Withstand Voltage: 2500VAC/minute Working Environment Temperature: -35℃~75℃ Radiator Working Voltage: AC220V. Package List: 1 x Voltage Regulator1 x Protective Cover Note: The resistive load is more than 2.5 times, and inductive load is more than 4 times. Use with a radiator!