Fuse-Switch Disconnector of Hr3-100-34 3p

Application
HR3 series fuse-switch disconnector, is applied to power-distribution system of AC 50Hz, 380V,rated current up to 1000A, as protection for cirucit,cable againt short-circuit,overload protection.Under the normal conditions, this product can breaking and making normal-load and overload current by manually and unfrequently.In the short-circuit condition, fuse can break the circuit.
This product conforms the 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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