SELECTION OF CORRECT RATING OF MCB (Miniature Circuit Breaker)?

Question

What should be the rating of MCB (Miniature Circuit Breaker) for .75 Ton AC (Running Current 4.2 Amp) and 1 Ton AC (Running Current 6.8 Amp.)?

Answer 1

For 4.2 Amps you can use C type 6 Amps MCB and for 6.8 Amp you can use C type10 Amps MCB, But if you want a sensitive production You can use motor starters for it because the have got a thermal relay inside, you can precisely adjust it which amps you want them.E.g. Klockner Moeller PKZM0 ,you can find some other products from the local market.