4000W 0-220V AC SCR Electric Voltage Regulator Motor Speed Controller Dimmer خافض جهد متردد

The 4000W 0-220V AC SCR Electric Voltage Regulator is a high-power controller designed to adjust AC output voltage for motor speed control, lamp dimming, and general AC load regulation. Using silicon-controlled rectifier (SCR) phase angle control, this regulator provides continuous, stepless adjustment of output voltage from 0 to 220V AC to match the requirements of compatible resistive and inductive loads.Key capabilities include smooth, variable control of motor speed and light intensity, and the ability to handle loads up to 4000 watts when properly installed on a suitable supply circuit. The unit is engineered for applications where robust, manual voltage regulation is required, such as workshop motors, industrial fans, heaters, and dimmable lighting systems that are compatible with SCR control.Installation and usage notes: mount the regulator in a well-ventilated enclosure to allow heat dissipation, provide adequate cooling and clearance from flammable materials, and ensure wiring is performed by a qualified electrician. Use appropriate circuit protection including fuses or breakers sized to the full-load current of the connected equipment. Avoid connecting equipment that is explicitly incompatible with phase-angle SCR control, such as some electronic motor drives or sensitive electronic timing circuits.Safety and maintenance: disconnect mains power before wiring or servicing, confirm correct input voltage and load ratings before operation, and inspect connections periodically for tightness and signs of overheating. If the regulator is used in continuous heavy-load applications, provide forced ventilation or an external heat sink to maintain stable operation. This product is intended for users familiar with AC mains wiring and safe handling of high-power electrical devices.