The miniature circuit breaker is suitable for overload and short circuit protection of AC 50/60Hz rated voltage 230V/400V, rated current up to 63A, and can also be used as a rare operation conversion of the line under normal conditions, mainly used in industry, commerce, high-rise, and civil use, etc. Various places.
Elegant appearance, simple and reliable use, support short circuit protection, overload protection. Our circuit breakers come in a variety of options to meet a variety of needs while safely protecting your equipment and systems from overcurrent disturbances.
Overall & Installation OEM Factory Electrical 63 Amp MCB 1P CJM2-63-2 Dimensions

OEM Factory Electrical 63 Amp MCB 1P CJM2-63-2 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.
OEM Factory Electrical 63 Amp MCB 1P CJM2-63-2 Technical Data
■Pole No.: 1,1P+N, 2, 3,3P+N 4
■Rated voltage: AC 230V/400V
■Rated Current(A): 20,25,32,40,50,63
■Tripping curve: C, D
■Rated short-circuit capacity(lcn): 10000A
■Rated service short-circuit capacity(Ics): 7500A
■Rated frequency: 50/60Hz
■Rated impulse withstand voltage: 6kV
■Electro-mechanical endurance: Ins100=10000:n125=8000
■Connection terminal: Pillar terminal with clamp
■Connection capacity:
□Flexible conductor 35mm2
□Rigid conductor 50mm2
■Installation:
□On symmetrical DIN rail 35mm
□Panel mounting
■Terminali Connection Height: 20mm
OEM Factory Electrical 63 Amp MCB 1P CJM2-63-2 Compliance
■IEC60947-2
■EN60947-2
The tripping characteristic curves
OEM Factory Electrical 63 Amp MCB 1P CJM2-63-2 Power Conumption
| Power Conumption | Voltage Drop (mV) | Consumption (W) |
| 20 | 141 | 2.82 |
| 25 | 88 | 2.2 |
| 32 | 84 | 2.7 |
| 40 | 105 | 4.2 |
| 50 | 70 | 3.5 |
| 63 | 83 | 5.2 |
Overload Current Protection Characteristics
| Test | Tripping Type | Test Current | Initial State | Tripping timeor Non-tripping Time Provisior | |
| a | Time-delay | 1.05In | Cold | t≤1h(In≤63A) t≤2h(ln>63A) |
No Tripping |
| b | Time-delay | 1.30In | After test a | t<1h(In≤63A) t<2h(In>63A) |
Tripping |
| c | Time-delay | 2In | Cold | 10s 20s63A) | Tripping |
| d | Instantaneous | 8ln | Cold | t≤0.2s | No Tripping |
| e | lnstantaneous | 12In | Cold | t<0.2s | Tripping |
Yueqing Sofielec Electrical Co, Ltd has With over 20 years of experience, the products produced by the factory include MCB, RCD, RCBO, ISOLATOR, SPD, CONTACTORS, RELAYS, TIMERS, FUSES. With approval: IEC CB, SEMKO, CE, CCC, SAA, KEMA, TUV, UL.
> Can You Replace a 10 Amp Breaker with a 20 Amp Breaker?
Replacing a 10-amp circuit breaker with a 20-amp one without a thorough professional evaluation is extremely dangerous and poses a significant fire hazard. Let's ana...
> What Makes a Circuit Breaker Essential for Home Electrical Safety?
Home electrical safety ranks high on every homeowner’s priority list, yet many overlook the quiet workhorse that prevents crises before they start. This device acts ...
> What Scenarios Require the Use of a Residual Current Circuit Breaker?
Electrical safety is a top priority in daily life and work, yet many people are unsure when to use a device that guards against electric shock. This article explains...
> Which Problems Does a Motor Protector Relay Actually Prevent in Daily Use?
Motors power countless devices, but they’re at risk of damage from specific issues. A motor protector relay acts as a key safety tool, yet many users don’t know exac...








