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China OEM Mcb Supplier - CJM8-63 4P 4.5kA MCB Miniature Circuit Breaker with Household Failure Protection – C&J Detail:
Construction and Feature
- Protection against both overload and short circuit
- High short-circuit capacity
- Easy mounting onto 35mm DIN rail
- Terminal electric devices shall be mounted on Din rail of TH35-7.5D type.
- High short-short capacity 4.5KA.
- Designed to protect circuit carrying big current up to 63A.
- Contact position indication.
- Used as main switch in household and similar installation.
Normal Service Condition
- Altitude above sea level less than 2000m;
- Ambient temperature -5~+40, average temperature not exceeding +35 within 24 hours;
- Relative Humidity not exceeding 50% at maximum temperature +40 higher relative humidity allowed at lower temperature. For example, relative humidity 90% allowed at +20;
- Pollution class: II (means generally only non-electricity conducting pollution is considered, and also considers temporary electricity conducting pollution occasionally caused by condensed dew);
- Perpendicular installation with allowed tolerance 5.
Technical Data
Standard |
IEC/EN 60898-1 |
Rated Current |
6A,10A,16A,20A,25A,32A,40A,50A,63A |
Rated Voltage |
230/400VAC(240/415) |
Rated Frequency |
50/60Hz |
Number of Pole |
1P,2P,3P,4P(1P+N,3P+N) |
Module size |
18mm |
Curve type |
B,C,D Type |
Breakering capacity |
4500A |
Optimumoperating temperature |
-5ºC to 40ºC |
Terminal Tightening torque |
5N-m |
Terminal Capacity(top) |
25mm² |
Terminal Capacity(bottom) |
25mm² |
Electro-mechanical endurance |
4000cycles |
Mounting |
35mm DinRail |
Suitable Busbar |
PIN Busbar |
Test |
Tripping Type |
Test Current |
Initial State |
Tripping timeor Non-tripping Time Provisior |
a |
Time-delay |
1.13In |
Cold |
t≤1h(In≤63A) |
No Tripping |
t≤2h(ln>63A) |
b |
Time-delay |
1.45In |
After test a |
t<1h(In≤63A) |
Tripping |
t<2h(In>63A) |
c |
Time-delay |
2.55In |
Cold |
10s<t<60s(In≤63A) |
Tripping |
20s<t<120s(In>63A) |
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 |

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We are also specializing in improving the things management and QC method in order that we could retain terrific edge inside the fiercely-competitive small business for China OEM Mcb Supplier - CJM8-63 4P 4.5kA MCB Miniature Circuit Breaker with Household Failure Protection – C&J , The product will supply to all over the world, such as: Marseille, Estonia, Milan, Since our establishment, we keep on improving our products and customer service. We are able to provide you with a wide range of high quality hair products at competitive prices. Also we can produce different hair products according to your samples. We insist on high quality and reasonable price. Except this, we provide good OEM service. We warmly welcome OEM orders and customers all over the world to cooperate with us for mutual development in the future.
The customer service reprersentative explained very detailed, service attitude is very good, reply is very timely and comprehensive, a happy communication! We hope to have a opportunity to cooperate.
By Myrna from Vietnam - 2017.12.19 11:10
Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
By Adela from Slovakia - 2018.10.09 19:07