Gold Member Since 2006
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CNC Electric Group Co., Ltd.

Mcb, Miniature Circuit Breaker, Mini Circuit Breaker manufacturer / supplier in China, offering Hot Product Explosion Proof MCB (CBK53), Drop out Fuse (PRW1-24), Double-Winding Non-Excitation Tap-Changing Oil Immersed Distribution Transformer of 6~10V and so on.

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Hot Product Explosion Proof MCB (CBK53)

FOB Price: US $56.1-78.56 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $56.1-78.56/ Piece
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Production Capacity: 3000/Day
Transport Package: Export Packing
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: CBK53
  • Operation: Electric Type
  • Arc-extinguishing Medium: Air
  • Structure: MCB
  • Certification: ISO9001-2000, CE, CB, CCC
  • Rated Current (a): 1, 2, 4, 6, 10, 16, 20, 25, 32
  • Dielectric Test Voltage(Kv): 2.0
  • Rated Impulse Withstand Voltage(V): 6000
  • Protection Degree: IP20
  • Mechanical Life: 8000
  • Specification: IEC/EN 60898-1, CE, 3C, CB
  • Breaking Capacity: Low Voltage Circuit Breakers
  • Speed: Normal Type Circuit Breaker
  • Installation: Insert
  • Poles Number: 1p+N,2p,3p,3p+N,4p
  • Rated Voltage (V): 380/220
  • Rated Frequency(Hz): 50/60
  • Rated Breaking Capacity(a): 4500 / 6,000
  • Insulation Voltage(V): 500
  • Curve: a,AC
  • Trademark: CNC
  • Origin: Zhejiang, China
Product Description
About CNC

1. China Top 500 Enterprise
2.26 years rich experience in manufacturing electrical products
3. Sales in over 100 countries



1. Protection against the effects of sinusoidal alternating earth fault currents
2. Protection against indirect contacts and additional protection against direct
3. Protection against fire hazard caused by insulation faults
4. Controlling and Switching
5. Used in residential building, non-residential building, energy sources, industry
And infrastructure.

1. Diecasted aluminium alloy shell with plastic-sprayed surface.
2. Inside is installed minicircuit breaker of high breaking capacity or The inside packs
3. A footlight tube, the fleetness starts in a moment, can according to customer
Request refit the one foot light tube.
4. With overload and shortcircuit protection, leakage protection is available as
5. Required Cent the takes off to button up the etc. Protection device.
6. Suitable for steel pipe and cable wiring.
7. Suitable for GB3836-2000, IEC60079 standard request.


1. We Are Suppler of Three Gorges Project, China National Petroleum, Sinopec Group;

2. China Famous Export Enterprise, Our Products Sale in Over 100 Countries;

3. Our Laboratory is China Key Industrial Electrical Laboratory;

4. We have completely sales service system, ensure every detail is going smooth.

5. We have new designed products each year by our R&D Dpartment.

6. Perfect testing system ensure each product is qualified.

7. Want know more of us? Waiting for your inquiry.
How to Order?
1. Please let us know what kind of model, color, battery capacity you need.
2. Proforma invoice (PI) will be sent to you.
3. Please check and confirm the PI.
4. Once we confirmed the order, please pay it soon.
5. After full payment, all goods will be sent to you in 3-5 days as usual.
6. OEM/ODM is welcomed. Free OEM for more than 500 sets orders.
1. Products are shipped via UPS / DHL / EMS / HK EMS / FedEx / TNT and so on expresses (door to door).
2. We Provide Drop shipping Service.
3.5 days delivery upon receiving payment if the qty is lower than 1000PCS and it is not customized products.
4. In order to ensure you receive your order tax free upon import, we declare lower value.
5. Shipping via EMS. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.

1. We accept Western Union and T/T, Paypal (extra 4% commission charge)
2.30% deposit and 70% before shipping
3. No payment collection. We only can deliver goods after getting full payment

1.6 months for batteries, 3 months for atomizers.
2. If the product is defective, please notify us within 3 days of delivery.
3. All products must be returned on their original condition, in order to qualify for a refund or exchange of goods
We provide 1 year warranty.
If the item is defective, please notify us within 3 days of delivery.
All item please be returned in their original condition in order to qualify for a refund or exchange of goods

Welcome to inquire, negotiate, we will be happy to provide you with the best quality products and personalized service!
Type Standard   lEC/EN 61008-1
Electrical features Leakage type   Electromagnetic type
Rated current In A 1, 2, 4, 6, 10, 16, 20, 25, 32
Type (wave form of the earth leakage sensed)   A,AC
Poles P 2,4
Rated voltage Ue V 380/220
Insulation voltage Ui V 500
Rated frequency Hz 50/60
Rated breaking capacity Inc=IΔc A 45,006,000
SCPD fuse A 6000
Rated impulse withstand voltage (1.2/50) Uimp V 6000
Dielectric test voltage at ind. Freq. for 1min kV 2.5
Rated sensitivity IΔn A 0.03,0.1,0.3
Rated residual making and breaking capacity IΔm A 500(In≤40A); 630(In>40A)
Pollution degree   2
Electrical life t 4000
Mechanical life t 8000
Protection degree   IP20
Storage temperature °C -25~+70
Ambient temperature (with daily average≤35°C) °C -5~+40
Installation Terminal connection type   Cable/U-type bar/Pin-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 2.5
In-Ibs 18
Mounting   On DIN rail EN 60715(35mm)by means of fast clip device
Connection   From top and bottom

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