China Factory for Overload Protection Breakers Circuit Miniature Electrical Air Switch Circuit Breaker
We’ve been also focusing on improving upon the stuff management and QC program to make sure that we could hold fantastic gain in the fiercely-competitive enterprise for China Factory for Overload Protection Breakers Circuit Miniature Electrical Air Switch Circuit Breaker, We’re not content together with the present achievements but we have been trying greatest to innovate to satisfy buyer’s more personalized needs. No matter where you’re from, we are here to wait for your type ask for, and welcom to visit our manufacturing unit. Choose us, you can meet your reputable supplier.
We’ve been also focusing on improving upon the stuff management and QC program to make sure that we could hold fantastic gain in the fiercely-competitive enterprise for China Circuit-Breaking and Miniature Circuit Breaker, We’d like to invite customers from abroad to discuss business with us. We can provide our clients with high quality products and excellent service. We are sure that we will have good cooperative relationships and make a brilliant future for both parties.
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
- The price-quality ratio is very high
Specification
| Standard | IEC/EN 60898-1 | ||||
| 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 capacity | Flexible conductor 35mm² | ||||
| Rigid conductor 50mm² | |||||
| Installation | On symmetrical DIN rail 35mm | ||||
| Panel mounting |
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<t<60s(In≤63A) 20s<t<120s(In>63A) |
Tripping |
| d | Instantaneous | 8ln | Cold | t≤0.2s | No Tripping |
| e | lnstantaneous | 12In | Cold | t<0.2s | Tripping |
Working Principle of MCB
When an MCB is subject to continuous over-current, the bimetallic strip heats up and bends. An electromechanical latch is released when the MCB deflects the bi-metallic strip. When the user connects this electromechanical clasp to the working mechanism, it opens the microcircuit breaker contacts. Consequently, it causes the MCB to switch off and terminate the current flowing. The user should individually switch on the MCB to restore the current flow. This device guard against defects caused by excessive current, overload, and short circuits.We’ve been also focusing on improving upon the stuff management and QC program to make sure that we could hold fantastic gain in the fiercely-competitive enterprise for China Factory for Overload Protection Breakers Circuit Miniature Electrical Air Switch Circuit Breaker, We’re not content together with the present achievements but we have been trying greatest to innovate to satisfy buyer’s more personalized needs. No matter where you’re from, we are here to wait for your type ask for, and welcom to visit our manufacturing unit. Choose us, you can meet your reputable supplier.
China Factory for China Circuit-Breaking and Miniature Circuit Breaker, We’d like to invite customers from abroad to discuss business with us. We can provide our clients with high quality products and excellent service. We are sure that we will have good cooperative relationships and make a brilliant future for both parties.
