YF47-63 Series Miniature Circuit Breaker
YF47 series hiah break miniature circuit breaker (hereinafter referred to as YF47) is a kind ofcurrent limiting type high break miniature circuit breaker with double protection of overloadand short circuit, which is suitable for AC 50/60Hz, rated voltage 230/400V and below thecircuit, as the line overload and short circuit protection, it is not suitable for protecting themotor.
This product conforms to GB10963.1.
Specification Parameter
Basic specifications and parameters are shown in the following table:
| Model number | Rated current (A) | Type(pole) | Voltage(V) | Breaking capacity(A) | ||||
| YF47-63 | 40-63 | 1 | 230 | 4000 | ||||
| 2,3,4 | 400 | |||||||
| YF47-63 | 1-32 | 1 | 230 | 4500 | ||||
| 2,3,4 | 400 | |||||||
The overcurrent protection characteristics of circuit breakers are shown in the following table:
| NO. | Type specification | Initial state | Test current (A) | Test time | Expected result | Remarks | ||
| 1 | All values | Cold state | 1.13In | t≥1h | non-trip | |||
| 2 | Ail values | Hot state | 1.45In | t<1h | trip | Followed by one experiment | ||
| 3 | In≤32 | Cold state | 2.55In | 1s<t≤60s | trip | |||
| In>32 | 1s<t≤120s | |||||||
| 4 | Type C | Cold state | 5In | t20.1s | non-trip | |||
| Type C | 10ln | |||||||
| 5 | Type D | Cold state | 10ln | t<0.1s | trip | |||
| Type D | 14In | |||||||
Product Advantage
The altitude does not exceed 2000m;
The ambient air temperature is not higher than +40'C and not lower than -5'℃, and theaverage value of 24h is not more than +35°℃;
Surrounding relative humidity, not more than 50% when the ambient air temperature is+40℃C; At a lower temperature, a higher relative humidity is allowed. The monthlyaverage maximum relative humidity of the wettest month is 90%, while the monthlyaverage minimum temperature of the month is +25'C, and condensation on the product isallowed due to temperature changes.
In a medium without explosion risk, and there is no gas and dust sufficient to corrodemetal and destroyinsulation in the medium;
Where there is no rain or snow;
Where there is no obvious shaking and shock vibration.
Outline And Mounting Dimensions
