Nader Circuit Breaker

1. Calculation of rated current of single-phase load P = UI COS (power = voltage current power factor) In the formula: U-single-phase 220V; COS--load power factor, generally 0.8; For example: the total capacity of single-phase load electrical equipment is 20KW, the line rated current is calculated ac...

The air switch is used as a main power protection switch or branch line protection switch in the household power supply. When a short circuit or overload occurs in residential wiring or household appliances, it can automatically trip and cut off the power supply, thereby effectively protecting these ...