NBH8-40□ Household circuit breaker

Function and use

NBH8-40□ small circuit breaker is mainly used for overload and short-circuit protection in lines with AC 50Hz, rated voltage up to 230V, and rated current up to 40A. It can also switch on and off electrical devices and power lines infrequently under normal circumstances. Comply with standards: GB/T 10963.1, IEC/EN 60898-1, and obtain CCC, CE, SEMKO, VDE, EAC, RCC and other certifications.

Detailed parameters

< td>Rated limited short-circuit current (Icu) td>Number of terminals

Parameter classification	Parameter items	Parameter values
System parameters	Rated voltage (AC)	AC 230V
	Rated current (A)	1A, 2.2A, 3A, 4A, 6A, 10A, 16A, 20A, 25 A, 32A, 40A
	Rated insulation voltage (Ue)	500V
	Rated impulse withstand voltage (Uimp)	6kV
	Rated frequency (Hz)	5 0Hz
	Rated short-time withstand current (Icw)	1kA
	Type B, Type C
	Tripping characteristics	See Table 2 and Figure 1
	Operating environment temperature	-25℃～+70℃
	Live part Minimum electrical clearance between parts and accessible conductors (mm)	2.5mm
	Creepage distance between live parts and accessible conductors (mm)	4mm
	Rated short circuit breaking capacity (kA)	A500A(NH)B@40A, 600A(NH)B@40A
	Temperature rise level	3
	Creepage distance	≥5mm
	Bending moment	1.2N·m
	Shell protection Level and installation dimensions	IP65
	Small circuit breakers	2 pieces
	HP20
	Installation category	Class I