# Can I mix 10 and 12 gauge wire?

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You haven’t said how you will manage the transition from 10 gauge to 12 gauge. If you are thinking of wire nuts in a junction box, then the answer is that you cannot do this safely. Your larger breaker (30A, the maximum 10 gauge is rated for) will not trip in this situation and the 12 gauge wire may start a fire.

## Is it OK to mix wire gauges?

Mixing Wire Gauges

To prevent overloading, use the same gauge wire throughout a circuit. … Don’t go on the look of a wire. Know the amp capacity for each gauge of wire. Contrary to what seems logical, the smaller the gauge number, the thicker the wire.

## What happens if you use different gauge wire?

In a house you can use different gauge wiring on a circuit. But that poses the risk that someone might replace the breaker with one rated for the larger size wire, and therefore overload the smaller wire.

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## What’s the difference between 10 and 12 gauge wire?

The wire gauge indicates the electrical wire sizing, as defined by the American Wire (AWG) system. … In other words, as the gauge number gets higher, the diameter of the wire gets smaller. For example, a 10-gauge wire is bigger than a 12-gauge wire. Larger wires can carry more amperage and wattage than smaller wires.

## Can you mix 12 and 14 gauge wire?

Yes you can mix 12 and 14 gauge wire with a 15 amp breaker on the circuit. But it is not recommended because the next homeowner or electrician may be confused and put a 20 amp breaker on it again.

## Should I use 12 or 14 gauge wire?

If you’re wiring a circuit on which there are both lights and outlets, or you just aren’t sure which wire gauge to use, you can’t go wrong by choosing a 12-gauge wire. It’s not quite as flexible as a 14-gauge wire, and it costs a bit more, but it’s always a safe choice on a 15- or 20-amp circuit.

## Can you run 14 gauge wire on a 20 amp breaker?

You can not use 14 AWG anywhere on a circuit that has a 20A breaker. If you are putting 15 amp receptacles on a 20 amp circuit with 12 gauge wire, then you MUST use the screw terminals, not the back stab terminals.

## How far can you run 12 gauge wire?

A 12 gauge wire is typically good for 15 amp at 100 feet.

## Can you use 10 gauge wire on a 20 amp breaker?

2 Answers. Yes, you can use 10 AWG copper conductors with a 20 ampere breaker. The smallest size conductors you could use with a 20 ampere breaker, are 12 AWG copper conductors. There’s no problem using larger conductors, other than cost to you, and difficulties associated with working with thicker conductors.

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## Is it OK to use 12 gauge wire on a 15 amp circuit?

Because it has even less chance of overheating, 12-gauge wire is also acceptable on a 15-amp circuit.

## How many outlets can be on a breaker?

By rule of thumb, you would stick with 8 to 10 outlets and or lights per breaker.

## What gauge of wire do I need?

To determine what gauge wire you need, consider the carrying capacity and the amount of current the wire needs to conduct (measured in amperage or amps). Wire gauge is directly related to how many amps you need to run through it. The distance you need the wire to go can also impact the gauge of wire you need.

## What are the 3 types of wires?

And there are three basic house wiring types that each outlet has points for, namely live wire, a neutral wire, and the ground wire.

## How many outlets can you put on a 14 2 wire?

You can use 14-2 wire to 12 outlets that are protected by a 15 Amp breaker. If you use 12-2 you can use a t-rated 20 Amp receptacle, but in my code you only see those in kitchens.

## How far can you run 14 gauge wire?

As an example, for a 120-volt circuit, you can run up to 50 feet of 14 AWG cable without exceeding 3 percent voltage drop.

For 240-volt circuits:

14 AWG 100 feet
10 AWG 128 feet
8 AWG 152 feet
6 AWG 188 feet

## What can 12-2 wire be used for?

Yes, it is okay to use 12-2 cable to supply lighting fixtures. The other answer indicates that it even with 12-2 you have to use a 15A breaker for lighting circuits which is not strictly correct. If the entire circuit is 12AWG (other than fixture wires), then a 20A breaker may be used.

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