Item Type: SCR Voltage Regulator_x000D_ Input Voltage: AC220V_x000D_ Plug Specifications: EU Plug_x000D_ Output Voltage: 0-220V adjustable, and the voltmeter does not work when the output voltage is below 5V. _x000D_ Power: 4000W, suitable for 2000W-3000W resistive loads. _x000D_ Voltage Regulation Range: 0-220V stepless adjustable under load, voltage reduction to 0V, voltage increase from 10V. _x000D_ Overload Protection: 15A_x000D_ Rated Current: 9A_x000D_ Maximum Current: 18A 1Volt Regulator: This SCR voltage regulator can turn the AC 220V input voltage to provide 0?220V adjustable output voltage with high stability. 2Simple Control: Equipped with multipurpose socket and power indicator, this voltage control switch uses a knob for stepless voltage adjustment. 3High in Safety: No delay, the effective protection of high power thyristors with peak voltage absorption circuit can safely prevent the surges. 4Better Utility: Allows for flexible application in motor speed control, label printing machine, EE laboratory, railway switch test and so on. 5Easy to Install: Light in weight and compact in size as well, the voltage regulator controller is very convenient to install in several minutes.1. The measured output voltage when the machine is empty is a virtual voltage, and the the correct output voltage can be measured when a load of over 20W is connected. _x000D_ 2. Input AC power, the output is also AC power, not DC power. _x000D_ 3. 4000W mentioned refers to the maximum power when working under resistive loads. Inductive loads account for one third of resistive loads, while resistive loads refer to tungsten filament lamps, heating wires, etc. Inductive loads refer to series excited motors, etc. Please be cautious when using circuit board electronic products. _x000D_ 4. The metal casing of this product must be securely grounded.1 x_x000D_ _x000D_ SCR Voltage Regulator