M
Moses
"I think you must agree, that if 6A a breaker will trip with a 7A fault current(CPC-L), then it surely will trip with a 8A current short circuit(L-N)."
Will it?????
ever???
in 0.4s ??
Geoff, my friend, Zs is the impedance of the circuit, and not a current.
Lister, my friend, a 6A type B CB will trip in 0.4Sec with a minimum of 30A current. 7A & 8A were given as examples.
There fore 230V/30A = 7.67 Ohms is the theoretical max Zs for a 6A type B CB.