RDM6 series Moulded case circuit breaker,mainly applied to the circuit of AC50Hz,rated insulation voltage 690V(control circuit voltage 400V) ,rated operational voltage up to 400V,for power distribution and overload,short-circuit and undervoltage protection.
And circuit breaker which frame size rated current below 400A can be used to infrequently stating and stop squirrel cage motor and protect motor overload,short-circuit and undervoltage.
This production conforms the standard of IEC60947-2 and 14-48.2-2008.
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,Accessory pollution class is 2 Class.
3.5 Main circuit breaker installation type:III Class
3.6 Installation basic conditon:Vertical installation
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|Frame size rated current InmA||Conventional thermal current Ith A||Breaking capacity||short-circuit breaking capacity kA||rated current In A||Arc distance mm|