The company's main products are high-voltage current-limiting fuses with voltage grades ranging from 3.6 kv to 40.5 kv. Products, divided into transformer, motor and voltage transformer and capacitor protection for high-voltage current-limiting fuses and a full range of high protection, voltage current-limiting fuses and other four series of more than 70 specifications. Products with standardization, serialization, miniaturization, diversity, “Haofang” brand fuses have high breaking ability (50kA) , short breaking time, low power consumption, over-operation, low voltage, stable characteristics, and equipped with a new sealed impactor (its energy is 0.8-1.2 joules) .