The 4000W 220V AC SCR Voltage Regulator Dimmer is a multi function control device designed to regulate voltage, dim wattage loads, and provide thermostat based regulation for heating elements. Built around a silicon controlled rectifier (SCR), it delivers smooth and reliable control for 220V AC mains up to 4000 watts. The unit combines an electronic starter, speed controller, electronic voltage regulator, dimmer, thermostat regulator and motor starters in a single compact package. Key benefits power handling for demanding loads: supports up to 4000W at 220V AC, enabling control of large heating elements, lighting, and motors on standard mains. Smooth, reliable regulation: SCR based voltage regulation provides gradual, stable control ideal for dimming, speed adjustment and temperature control. Integrated soft start and protection: electronic starter aids safe motor start and reduces voltage shock to electrical devices. Multi function capability in one unit: functions include voltage regulator, dimmer, thermostat regulator, speed controller, and motor starters, reducing the need for multiple devices. Temperature controlled operation: thermostat regulation helps maintain setpoint with responsive feedback for heating applications. Versatile motor and load control: suitable for driving 220V loads such as fans, blowers, and other motors within the rated power. Easy installation in control panels: compact design intended for panel mounting and standard wiring to mains and load circuits. Robust, dependable performance: designed for professional or workshop environments where steady regulation and control are required. Key attributes Functionality: SCR voltage regulator and dimmer with electronic starter, speed controller, electronic voltage regulator, thermostat regulator, and motor starters. Compatibility: designed for 220V AC systems with loads up to 4000W; suitable for a range of resistive and certain inductive loads within the rated capacity. Size and form: compact enclosure suitable for panel mounting and integration into electrical control setups. Construction: built to handle power applications with a focus on reliable operation and long service life. Performance: delivers controlled voltage and adjustable output with stable regulation for consistent device performance. Applications and use cases Heating control with thermostat regulation: connect a heating element or electric heater and set a temperature point. The device maintains the desired temperature by modulating the output, improving energy efficiency and comfort. Motor and fan speed control: regulate the speed of 220V motors, blowers or conveyors within the 4000W limit. Soft start helps reduce electrical stress and prolongs motor life. wattage lighting dimming: adjust brightness for large incandescent or halogen lighting installations, stages, studios or workshops, enabling flexible illumination while staying within the 4000W rating. Notes for installation and use Ensure the total connected load does not exceed 4000W at 220V AC. Verify compatibility with the specific load type, as some inductive loads may require appropriate sizing and wiring. Follow standard electrical safety practices during installation, wiring, and maintenance. Use appropriate enclosure and wiring methods for panel mounting to ensure safe operation in the intended environment. In summary, this 4000W 220V AC SCR Voltage Regulator Dimmer provides a single, versatile solution for regulating voltage, dimming wattage loads, and implementing thermostat and speed control. Its integrated functions for electronic startup, speed control, thermostat regulation and motor starting make it suitable for heating, motor, and lighting applications in professional settings, workshops, and industrial environments.