[Moved]minature circuit breaker mcb doubts

[raman00084]

i bought a c6 amps 3 pole mcb, by doubt is can draw 6 amps on each pole are only 6a for 3 poles



regards
kalayn

 

[raman00084]

Miniature Circuit Breaker 10ka doubts

i bought a c10a mcb in that it is written 10ka breaking capacity what is the meaning for 10ka ( if it is kilo ampere the why mcbs are available in 6 10 16 32 amps, generally an mcb trips when current exceeds a set point that is 6 10 16 32 etc then what is ka

 

[chuckey]

The KA rating is the fault current which the contacts can break with out welding. i.e. 250V mains loop resistance of wiring .1 Ohm, fault current = 2500 A = < 10KA, so it will break this circuit.
Current rating is per pole.
Frank