dorman smith LM

[mogga]

doing a PIR on an absolute pigsty of a job I cant find the MaxZs or BsEn numbers for the breakers Old black Dormsn Smith LM style I know they r type 3 and 4.5Ka Cheers in advance Guys

 

[Sintra]

BS 3871 type 3

What sizes do you need max Zs's for.

 

[mogga]

sizes 5a 15a 20a 30a please M8y Had a bet you would be first to answer lol

 

[pevvers]

Simple answer would be to multiply the rating of whichever one you need the max Zs for, and divide 230 by whatever your answer may be...

I.E. 10 amp would be simple, 10x10=100 so therefore 230/100=2.3 ohms (the same as a C type 60898)

So a 5 amp would be 230/50=4.6 ohms and so on and so forth....

 

[mogga]

aaaaaaaaaaa righty ty M8y