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Mike G.
Mike G., Master Electrician
Category: Electrical
Satisfied Customers: 7598
Experience:  Proven Professional 48 years Experience
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I have a shop that I am adding on to. The original

Customer Question

I have a shop that I am adding on to. The original Electrical Blue prints show notations "1A-3.5". I know the 1A is the main electrical panel, the 3 is the Circuit Breaker location. What does the .5 mean?.........Thanx, Randy
Submitted: 1 year ago.
Category: Electrical
Expert:  Mike G. replied 1 year ago.

Hi,I'm Mike G and I'll be assisting you. Look at the panel breaker position and see if there is a single pole or a twin breaker. It possibly is a notation for the twin.

Customer: replied 1 year ago.
Hi, they are single breakers. The diagram shows for example for a room: 1A-3.1, 1A-3.2., 1A-3.3 & 1A-3.4......these look to go to a switch and pot lights...... Randy
Expert:  Mike G. replied 1 year ago.

It seems you have found the answer yourself. Very good.