YFB1-80DC Series DC Miniature Circuit Breaker
YFB1-80DC series mini circuit breaker is suitable for DC circuit system, rated working voltage is DC220V, rated current to 80A line, for overload and short circuit protection of the line, can also be used as the line of infrequent operation conversion.The circuit breaker is suitable for commercial office buildings, residential buildings and similar buildings.
Specification Parameter
Circuit breaker rated current:1A,2A,3A,4A6A,10A,16A,20A,25A,32A,40A,50A,63A,80A;
Technical parameter:
1.The supply form of the circuit breaker instantaneous release device is type C,and other types of users can place special orders;
2.Circuit breaker rated short circuit breaking capacity:YFB1-80DC,Ics=Icu6kA3)Circuit breaker overcurrent protection characteristics.
Mechanical electrical lifeElectrical life:4000 times;
Mechanical life:20000 times.
| No. | Rated current (A) | Starting state | Test current | Fixed time | Expected result | |
| 1 | In≤80 | cold | 1.13In | t≥1h | non-trip | |
| 2 | In≤80 | Immediately after the previous experiment | 1.45In | t<1h | trip | |
| 3 | In≤32 | cold | 2.55In | 1s<t<60s | trip | |
| In>32 | 1s<t<120s | |||||
| 4 | Type C | cold | 5In | t≥0.1s | non-trip | |
| 10ln | t<01.s | trip | ||||
Product Advantage
This product conforms to GBT14048.2,1EC60947-2 standards, with the international advanced level.
1.High rated breaking capacity, up to 7.5kA;
2.The circuit breaker operating mechanism is a free tripping mechanism with energy storage, and the contact is quickly closed, which overcomes the adverse effects caused by the speed of the manual operation handle and greatly improves the service life of the product; In normal operation, the contact can only stay in the closed or disconnected position:
3. Combined terminal with finger contact protection, high installation performance.
Outline And Mounting Dimensions
