QO Type Circuit breaker wiringI

simeonzera

I am installing a QO 12 circuit 6 position load center for my garage outlets and lights. Each of my 20A single pole breakers and 30A double pole breakers allows two wires to be connected to the same connector. Can i wire two separage 220 Volt plugs into the same circuit breaker? The same question for the 110 breakers.

Code05

Maybe, define what you are doing and the loads involved.

simeonzera

I have installed two 220v circuits to run 220v wood working equipment (unisaw, scroll saw, 5hp compressor. may add welding later). Also installed 2 110v circuits for lighter tools (band saw, drill press, grinders, small planer, and a variety of power hand tools) and lights. If i use two double pole breakers for the 220 circuits and 2 single pole breakers for the 110 circuits, then i am out of spaces in my lug box. Thanks for your response.

k_buz

What size wire do you have feeding the sub panel and what size breaker do you have protecting the wire?

Jim Port

The breaker ampacity controls whether you can terminate more than one conductor on the breaker.

If you are out of spaces buy a bigger panel.

__________________
Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.

brric

Is this an attached garage or a seperate structure?

simeonzera

I have #4 coming from the main panel off a 60A breaker in the main breaker panel, and i will use 20A for the 110 circuits and 30 vor the 220 circuits (I will rarely have two machines running at one time on the 220 circuits, primarily a vacuum motor or a compressor motor). I used AWG10 for the 220 circuits and 12/2 for the 110 circuits.

simeonzera

Its in an attached garage. the lug box will be within 20 inches of the main.

kbsparky

Getting back to your original questions, the short answer is YES!

The QO type breakers' lugs are listed for 2 conductors on sizes up to 30 Amps.

As for the circuit loading issues brought up by others in this thread, if you happen to overload the breaker, it will trip ....

__________________
-KB

Life is uncertain -- eat dessert first!!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

simeonzera

kbsparky, thanks for the response. I take it that i can run two circuits into either the 110 or 220 circuit breakers. If between the two circuits total amperage exceeds the breaker limit, it will trip. I am comfortible with that, and will plan accordingly. Thank you again.

Techy

Ypu dont have 2 circuits, you have one circuit, that goes 2 different places from the panel.

the same can be accomplished with a wirenut and a short pigtail on a breaker that doesn't allow 2 wires