Miniature Circuit Breaker(MCB) LYM2-125
Construction and Feature
• High short-short capacity 10KA.
• Designed to protect circuit carrying big current up to 125A.
• Contact position indication.
• Used as main switch in household and similar installation.
Construction and Feature
• High short-short capacity 10KA.
• Designed to protect circuit carrying big current up to 125A.
• Contact position indication.
• Used as main switch in household and similar installation.
| Standard | IEC/EN 60947-2 |
| Pole No | 1P,1P+N,2P,3P,3P+N,4P |
| Rated voltage | AC 230V/400V |
| Rated Current(A) | 20A,25A,32A,40A,50A,63A,80A,100A,125A |
| 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 Uimp | 6kV |
| Connection terminal | Pillar terminal with clamp |
| Electro-mechanical endurance | Ins100=10000:n125=8000 |
| Terminali Connection Height | 20mm |
| Connection capacityInstallation | Flexible conductor 35mm² |
| Rigid conductor 50mm² | |
| On symmetrical DIN rail 35mm | |
| Panel mounting |
Overload Current Protection Characteristics
| Test | Tripping Type | Test Current | Initial State | Tripping timeor Non-tripping Time Provision |
|
| a | Time-delay | 1.05In | Cold | t≤1h(In≤63A) t≤2h(In>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<t<60s(In≤63A) 20s<t<120s(In>63A) |
Tripping |
| d | Instantaneous | 8In | Cold | t≤0.2s | No Tripping |
| e | Instantaneous | 12In | Cold | t<0.2s | Tripping |
