China N7 IV factory and manufacturers

N7 IV

N7 IV Residual Current Circuit Breaker provide the function of isolation switching and earth

leakage protection of electrical circuits. And also provide the indirect protection of the operator’s

body against the dangerous effects of electric current and provide the protection of the fire caused

by the electrical circuit fault.

Specification

Number of poles	2P,4P
Rated current(ln)	25,32,40,63,80,100A
Rated residual operating current(lΔn)	30 100 300 500mA
Rated residual non-operation current(lΔno)	15 50 150 250mA
Rated voltage(Un)	AC 230/400V
Residual current off-time	≤0.03S
Type	A AC
Short-circuit capacity(lcn)	6000A
Endurance	≥4000
Protection degree	IP20