new cu

Knighty · Posted: Wed Mar 09, 2005 10:25 am Post Subject: new cu

i wonder if someone can help,the service head fuse is 60amp,does this dictate what size switch i need in a new CU i.e.100amp DP isolator or 80amp RCD, because someone told me it has to be the same value as the service head fuse.And that didnt sound right to me,but i may stand corrected.Some advice would be greatly appreiciated!!!

kai · Posted: Wed Mar 09, 2005 12:42 pm Post Subject: Use 100amp switch.

Use a 100amp switch. the main fuse can be smaller than the switch, but not the other way round - ask them for a free supply fuse upgrade perhaps.

Knighty · Posted: Wed Mar 09, 2005 3:34 pm Post Subject:

Thanks very much.That makes perfect sense