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Multifunctional speed controller: this electronic speed controller is function mainly includes: speed control, voltage control, temperature control, dimming overload protection function, etc 4000W high power: the peak power of the speed controller is 4000W, the maximum power of the ohmic load must not exceed 2000W, the maximum power of the inductive load must not exceed 500W, and the maximum power of capacitive load must not exceed 300W, otherwise the speed controller may be damaged Overload Function The speed controller of the temperature motor has an overload protection function, which effectively protects high-performance hyristors from overvoltage, voltage spikes and RC absorption. The knob and digital display of the speed controller use a high-precision potentiometer to adjust the voltage, which is easy and convenient to use High-quality materials: the electronic voltage regulator with overload protection is made of flame retardant, plastic thickened material, which is high temperature resistant, flame retardant, rust-proof, high pressure resistant and durable Wide Application Electronic voltage regulator with overload protection are widely used in electric heating tubes, electric furnaces, tungsten lamps, small motors, electric soldering irons, electric drills, etc. With the electronic voltage regulator, lighting, tool speed, voltage, temperature, etc. are adjusted to effectively protect high-performance hyristors