Can you have multiple rooms on one circuit breaker?

Answer 1

It all depends on the load potential on each circuit. There are rules in the national Electric Code on how many outlets per 15 or 20 Amp circuits. As a worse case you will trip the breaker on a regular basis with more potential load. Also the wire size and devices must be compatible on both circuits.

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Answer for USA

The code allows 2 wires connected to one breaker so long as the two wires are the same size and both are either stranded or solid, and not one stranded and the other solid. This prohibits the terminal from being tight on the larger wire and loose on the smaller wire. Many local jurisdictions do not allow this as it often involves this problem and shows a lack of professional workmanship.

As for the word 'circuit', on any single pole breaker there can be only one circuit. Even if two wires are terminated, there is still only one circuit. It is no different than if you run one wire out to a junction box and branched off in two different directions from there. And running a single set of wires, hot/neutral/ground, out to a junction box and branching off from there is a more professional installation. It prohibits the look of poor workmanship in the panel and allows for the splicing of different sized or solid and stranded wires. All wires must be sized for the breaker as if it were the only wire on the circuit.

When making modifications or repairs to older homes it is sometimes necessary to do what is necessary given the circumstances. Yes, I have landed more than one wire on a breaker. Yes, I have landed different sized wires on a single breaker. But you must be sure the wires are tight and not be guessing.

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Before you do any work yourself

on circuits, equipment or appliances,

ensure the circuit is, in fact, OFF.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

Answer 2

No. Each conductor requires its own circuit breaker. Be sure to match the size of the breaker to the size of the wire. Ex.: 15 amp breaker for #14 gauge wire/ 20 amp breaker for #12 hauge wire.

Answer 3

You certainly can. You can also have a single room serviced by more than one breaker. Breaker assignments are based on expected power usage and type of home wiring.

Bedrooms don't normally require a lot of power so several rooms' wall outlets can be on the same breaker. The ceiling lights also don't require much power and can be on the same breaker circuit. It also makes sense to have ceiling lights and wall outlets on different circuits so that if you need to shut one of the circuits for work or repair, you can still use the other for light and power.

Some areas such as kitchen, garage, work room, laundry room can have appliances and equipment that require more power and should consider having their own circuit breaker.

Answer 4

they do it everyday

it would cost to much otherwise You can put up to 12 outlets on a circuit. On a circuit count you have to include receptacles, switch boxes and fixture boxes.