China OEM Mcb Mccb Supplier - Miniature Circuit Breaker (MCB) CJM2-63-2 – C&J

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China OEM Mcb Mccb Supplier - Miniature Circuit Breaker (MCB) CJM2-63-2 – C&J Detail:

Construction and Feature

High short-short capacity 10KA
Designed to protect circuit carrying big current up to 63A
Contact position indication
Used as main switch in household and similar installation

Specification

Standard			IEC/EN 60898-1
Pole No			1P,1P+N, 2P, 3P,3P+N,4P
Rated voltage			AC 230V/400V
Rated Current(A)			1A,2A,3A,4A,6A,10A,16A,20A,25A,32A,40A,50A,63A
Tripping curve			B, C, D
Rated short-circuit capacity(lcn)			10000A
Rated frequency			50/60Hz
Rated impulse withstand voltage Uimp			4kV
Connection terminal			Pillar terminal with clamp
Mechanical life			20,000 Cycles
Electrical life			4000 Cycles
Protection degree			IP20
Connection capacity			Flexible conductor 35mm²
			Rigid conductor 50mm²
Installation			On symmetrical DIN rail 35mm
			Panel mounting

Overload Current Protection Characteristics

Test	Tripping Type	Test Current	Initial State	Tripping timeor Non-tripping Time Provisior
a	Time-delay	1.13In	Cold	t≤1h(In≤63A) t≤2h(ln>63A)	No Tripping
b	Time-delay	1.45In	After test a	t<1h(In≤63A) t<2h(In>63A)	Tripping
c	Time-delay	2.55In	Cold	10s<t<60s(In≤63A) 20s<t<120s(In>63A)	Tripping
d	B curve	3In	Cold	t≤0.1s	No Tripping
	C curve	5In	Cold	t≤0.1s	No Tripping
	D curve	10In	Cold	t≤0.1s	No Tripping
e	B curve	5In	Cold	t≤0.1s	Tripping
	C curve	10In	Cold	t≤0.1s	Tripping
	D curve	20In	Cold	t≤0.1s	Tripping

What is MCB?

Miniature Circuit Breaker (MCB) is a type of circuit breaker that is small in size. It immediately cuts off the electrical circuit during any unhealthy condition in the electricity supply systems, such as an overcharge or a short-circuit current. Although a user may reset the MCB, the fuse may detect these situations, and the user must replace it.

The MCB is an electromagnetic device that protects electrical wires and loads from inrush current, preventing fires and other electrical risks. MCB is safer to handle, and it recovers power rapidly. For overloading and transient circuit protection in residential applications, the MCB is the most popular choice. MCBs are extremely quick to reset and require no maintenance. The bi-metal complementary idea is used in MCBs to defend against overflow current and short circuit current.

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