Air-operated circuit breaker RDM6 series

under-voltageACpower

RDM6 series Moulded case circuit breaker, mainly applied to the circuit of AC 50Hz, rated insulation voltage 690V(control loop circuit voltage 400V), rated operational voltage up to 400V, for power distribution and overload, short-circuit and undervoltage protection. And circuit breaker that frame size rated current below 400A can used to infrequently start and stop squirrel cage motor and protect motor overload, short-circuit and undervoltage. This production conforms the standard of IEC60947-2 and GB14048.2-2008. Normal operational conditions and installation conditions 3.1 - Temperature: no higher than +402C , and no lower than -5eC, and the average temperture no higher than +359C. 3.2 - Installation location no more than 2000m. 3.3 - The relative humidity: no more than 50%, when Temperature is +40QC. The product can withstand the higher humidity under lower temperature, for instance, when temperature at +209C, the product can withstand 90% relative humidity. The condensation that happened because of temperature changes should be taken care in spécial measurements 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 Class; Accessories in the circuit breaker pollution class: 2 class. 3.5 - Main circuit breaker installation type : III Class; 3.6 - Installation basic condition: Vertical installation