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China OEM Mcb Rccb 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 emphasize progress and introduce new merchandise into the market each and every year for China OEM Mcb Rccb 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: Philippines, Uruguay, Manchester, Our company promises: reasonable prices, short production time and satisfactory after-sales service, we also welcome you to visit our factory at any time you want. Wish we have a pleasant and long terms business together!!!
The sales manager has a good English level and skilled professional knowledge, we have a good communication. He is a warm and cheerful man, we have a pleasant cooperation and we became very good friends in private.
By Honorio from Colombia - 2018.12.11 14:13
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
By Tyler Larson from Ecuador - 2018.07.27 12:26