Overload Protector is a protective device designed to prevent damage to electrical equipment or circuits due to overload (excessive current). Its core function is to avoid equipment overheating, insulation damage, and even fire hazards by cutting off the circuit, limiting the current, or sounding an alarm when the current in the circuit or equipment exceeds a preset safe value. It is widely used in household appliances, industrial motors, power systems, and other fields, and is a key component in the electrical safety system. Applicable scope: small generators, treadmills, small appliances, inverters, transformers, compressors, power strips, UPS, PDU, water pumps, new energy fields, and various motors.