1. MCB miniature circuit breaker 2. Outer case:unti-fire Nylon PA66 3. conductive part:copper 4. contact point:silver

MCB Mini circuit Breaker

1.Application

It is used in lighting distribution system or motor distribution system for protecting overload and short circuit in the system.The product is neoteric in structure,light in weight,reliable and excellent in performance.Its frame and parts adopt plastics of high fire resistant and shockproof.The product,withlong life,is mainly used in AC 50-60Hz single pole 240V or two,three,four poles up to 415V circuit for overload and short circuit protection,as well as for unfrequently switching on&off electric equipment and lighting circuit in normal case. The products comply with IEC 60898&GB10963

2.Basic specification and main parameters

Standard		IEC60898
Number of poles		1P,2P,3P,4P
Rated current(In)		6,10,16,20,25,32,40,50,63
Rated voltage(Un)		AC240/415V
Rated frequency		50/60Hz
Tripping curve		B,C,D
Release action characteristics	Time delay	1.13In>1h Non-trip
		1.45In<1h trip
		2.55In 1s~60S trip
	Instantaneous(Curve C)	5In >0.1s Non-trip
		10In<0.1s trip
Magnetic releases operate		B curve:between 3 and 5In
		C curve :between 5 and 10In
		D curve: between 10 and 15In
Ratedbreaking capacit(Lcn)		3000A
Endurance		>2500
Circumstance temperature		-5~+40
Electrical life		>6000times
Mechanical life		20000 times
Tropical ration		Treatmen 2(RH95%,at 55°C)
Protection degree		IP20

MCB Mini circuit breaker