mitsibishi mcbs

[i=p/u]

the guy i work for has asked me to go to a job other guys are wiring and fitting out at minute to test on friday...

well i went there today and had look round and see whats what.

its an extension to another building with changing rooms, shower rooms etc(sports fcilties washrooms)

they have taken feed from old 3 phase pannel to new 3 phase board. my question is i was looking at the circuit breaker which is a mitsibishi 250A 3pole

where would i get max zs for this circuit breaker.. thks

 

[i=p/u]

the new 3phase board aswell is differnt from what i normally see (doorman) with dorman rcbo's which i think are double pole i.e ring circuits 2 line and 2 neutral conductors go into rcbo and then neutral comes out bottom to a neutral bar in that tri rated cable...

 

[mogga]

try their website or google Max Zs for the breaker model number

 

[i=p/u]

one test result schedule for dis cicuit and one for new board