| Breaking Capacity: | Low Voltage Circuit Breakers |
|---|---|
| Operation: | Electric Type |
| Speed: | Normal Type Circuit Breaker |
| Arc-extinguishing Medium: | Air |
| Installation: | Fixed |
| Structure: | MCB |
| Customization: |
|---|
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| Types | Values |
| Rated voltage Un | 240V/415V AC(1P),415V AC(2P,3P,4P) |
| Rated current In | 1A,2A,3A,4A,6A,10A,16A,20A,25A,32A,40A,50A,63A |
| Poles | 1P,2P,3P,4P |
| Instant tripping type | B,C,D |
| Rated short circuit breaking capacity(Icn) | 10000A |
| Overcurrent protection properties | See Form 2,Diagram 1, 2 and 3 |
| Mechanical and electrical life | See Form 3 |
| Connection wire | See Form 4 |
| Tightening torque | 2.5N.m |
| Nominal temperatureºC | 30 |
| Operated ambient temperatureºC | -5~+40 |
| Stored ambient temperatureºC | -25~+70 |
| Pollution level | 2 |
| Protection level | IP20 |
| Mounting type | 2 |
| Overcurrent protection properties(Nominal temperature 30 ºC) | Form 2 | |||||
| Item | Type | Test current | Initial status | Tripping or non tripping time limit | Expected result | Remarks |
| a | 1.13In | Cold | t≤1h | Non tripping | ||
| b | 1.45In | Test following the previous procedure; | t<1h | Trip | Current increases to stipulated value within 5s | |
| Process after test | ||||||
| BCD | ||||||
| 1s<t<60s | ||||||
| c | 2.55In | Cold | (for In≤32A) | Trip | ||
| 1s<t<120s | ||||||
| (for In>32A) | ||||||
| B | 3In | |||||
| d | C | 5In | Cold | t≤0.1s | Non trip | Connection of current by opening auxiliary switch |
| D | 10In | |||||
| B | 5In | |||||
| e | C | 10In | Cold | t≤0.1s | Trip | Connection of current by opening auxiliary switch |
| D | 20In | |||||
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