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dc miniature circuit breaker

CDB9ZB three-stage DC miniature circuit breaker

CDB9ZB
CDB9ZB-63 series three-stage DC circuit breaker is mainly suitable for circuits with rated working voltage DC250V and rated current 16-63A. It can realize full selective protection with the lower-level circuit breaker to ensure that the system can effectively avoid the malfunction of the upper-level circuit breaker caused by the lower-level short-circuit current while realizing the short-circuit fault protection function, and ensure the safety and security of the system to the greatest extent. Reliable operation, widely applicable to DC power systems such as power sources and substations.
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Range of productCDB9ZB
Product or component type
DC circuit breaker
Mechanical life20000 times
Electrical life10000 times
Suitability for isolationYes
Trip unit technologyThermal-magnetic
Device application
overload protectionShort circuit short time delay protectionInstantaneous short circuit protectionisolation
 


 
Poles description2P
[In] Rated current16、20、25、32、40、50、63A
[Ue] Rated  voltageDC250V
[Uimp] Rated impulse withstand voltage6KV
Breaking capacity10 kA/20 kA