use-switch disconnector,is applied to circuit of rated current 40A to 630A.It has 2P,3P and 4P.And it can operate with load.It has 2P,3P,4P.And It canbe installed by hunging on the busbar, can also be installed on the fixed board.And it provides the upper and lower terminals for input and output,with a knife edge introduction and arc extinguishing device.And shell cover has the sealed detect hole which install signal switch,detect switch inside. And it can be used as knife switch by equiping fuse monitor.
This product conforms to standard of IEC60947-3,GB14048.3.
Normal operational conditions and installation conditions
3.1 Temperater: no higher than +40ºC,and no lower than -5ºC,and the day average temperature no higher than +35ºC.
3.2 Altitude: no higher than 2000m
3.3 The relative humidity: no more than 50%,when temperature is +40ºC.The product can withstand higher humidity under lower temperature,for instance,when it at +20ºC,the production can withstand 90% relative humidity.
The condensation that happened because of temperature changes should be taken care.
And Installation location should have no exploresion danger, and no gas and conductive dust which can cause corrosion and insulation damage.
3.4 Class of pollution: 3 Calss
3.6 Installation type:III, IV.
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