China wholesale High Quality Miniature Circuit Breaker MCB 1p/2p/3p/4p 6A 10A 25A 63A

Short Description:

1. Application:For protecting cables and equipments against overload and short circuit.

2. General rules for choosing MCB.

2.1 Technical data of the network at the point considered:

The earthing systems, short-circuit current at the circuit breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.

2.2 There are 3 curve characteristics for magnetic operation:

B curve (3-5 In) protection and control of the circuits against length cables in TN and IT systems.

C curve (5-10 In) protection and control of the circuits against overloads and short-circuits; protection for resistive and inductive loads with low inrush current.

D curve(10-20 In) protection and control of the circuits against overloads and short-circuits; protection for circuits which supply loads with high inrush current at the circuit closing (LV/LV transformers, breakdown lamps).

3. CJB1 is of high current limiting performance to limit the destuction energy due to short circuit to the greatest extent.

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Sticking to your principle of “Super Good quality, Satisfactory service” ,We are striving to get a fantastic business enterprise partner of you for China wholesale High Quality Miniature Circuit Breaker MCB 1p/2p/3p/4p 6A 10A 25A 63A, We always follow the principle of “Integrity, Efficiency, Innovation and Win-Win business”. Welcome to visit our site and tend not to be reluctant to communicate with us. Are you prepared? ? ? Allow us to go!!!
Sticking to your principle of “Super Good quality, Satisfactory service” ,We are striving to get a fantastic business enterprise partner of you for China MCB and MCCB, We strongly believe that technology and service is our base today and quality will create our reliable walls of future. Only we’ve got better and better quality , could we achieve our customers and ourselves, too. Welcome customers all over the word to contact us for getting further business and reliable relationships. We’ve been always here working for your demands whenever you need to have.

Technical Data

	Standard	Unit	IEC/EN 60898-1
Electrical features	Rated current In	A	1,2,4,6,10,16,20,25,32,40,50,63
	Poles	P	1,2,3,4
	Rated voltage Ue	V	AC 240/415
	lnsulation voltage Ui	V	500
	Rated frequency	Hz	50/60
	Rated breaking capacity	A	750010000
	Rated impulse withstand voltage(1.2/50) Uimp	V	4000
	Dielectric test voltage at ind.Freq. for 1min	kV	2
	Pollution degree		2
	Thermo-magnetic release characteristic		B,C,D
Mechanical features	Electrical life	t	4000
	Mechanical life	t	10000
	Protection degree		IP20
	Reference temperature for setting of thermal element	℃	30
	Ambient temperature(with daily average ≤35℃)	℃	-5~+40(Special application please refer to temperature compensation correction)
	Storage temperature	℃	-25~+70℃
lnstallation	Terminal connection type		Cable/Pin-type busbar/U type busbar
	Terminal size top / bottom for cable	mm²	25
		AWG	18-3
	Terminal size top / bottom for busbar	mm²	25
		AWG	18-3
	Tightening torque	N*m	2
		In-Ibs.	18
	Mounting		On DIN rail EN 60715(35mm)by means of fast clip device
	Connection		From top and bottom

Temperature Derating

Please refer to table below for temperature compensation correction

Rated Current In(A)	Temperature compensation coefficient under various operational temperature
Rated Current In(A)	-10℃	0℃	10℃	20℃	30℃	40℃	50℃	55℃	60℃
7~6	1.20	1.14	1.09	1.05	1.00	0.96	0.80	0.75	0.70
10~32	1.18	1.12	1.08	1.04	1.00	0.96	0.92	0.88	0.84
40~60	1.16	1.12	1.07	1.03	1.00	0.97	0.87	0.83	0.80

Sticking to your principle of “Super Good quality, Satisfactory service” ,We are striving to get a fantastic business enterprise partner of you for China wholesale High Quality Miniature Circuit Breaker MCB 1p/2p/3p/4p 6A 10A 25A 63A, We always follow the principle of “Integrity, Efficiency, Innovation and Win-Win business”. Welcome to visit our site and tend not to be reluctant to communicate with us. Are you prepared? ? ? Allow us to go!!!
China wholesale China MCB and MCCB, We strongly believe that technology and service is our base today and quality will create our reliable walls of future. Only we’ve got better and better quality , could we achieve our customers and ourselves, too. Welcome customers all over the word to contact us for getting further business and reliable relationships. We’ve been always here working for your demands whenever you need to have.

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