# Question: How many wires can be connected in a junction box?

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Choose the Right Junction Box For example, the smallest 2-by-4-by-1-1/2-inch-deep box can comfortably splice only two cables (four or five conducting wires), while the largest 4-by-4-by-2-1/8-inch-deep boxes can handle as many as four to six cables (up to 18 individual conducting wires).

## How many circuits can go in a junction box?

There are no limits on the number of junction boxes (without devices) in any particular circuit. Each piece of utilization equipment reduces the maximum allowable load by it nameplate rating, 180va for each receptacle, and each light fixture at its maximum labeled lamp wattage.

## How many wires can be in a box connector?

Plastic Box Fill Capacities Capacities for two common sizes: Single Gang Boxes: A total capacity of 18 cubic inches allows for nine #14 gauge wires, eight #12 gauge wires, or seven #10 gauge wires. This is a wires-only capacity. With one device added to the box, subtract two wires in each category.

## Can two circuits be in the same junction box?

The answer is yes you can have 2 separate circuits in the same box (they can have a splice also but not needed in your case).

## Can 2 circuits share a junction box?

Yes, multiple circuits may exist in a junction box.

## How many wires can you put in a 3/4 Romex connector?

Normally no more than two should be ran thru a clamp IMO and in some cases this is also stated by the manufacturer. It is very common to see on a 3/4 box connector (clamp) 8/2 awg min. or the like but 12/3, 10/3 and other combinations are acceptable.

## Why do we use junction box?

A junction box is an enclosure that protects a connection (the junction) of two or more wires carrying electrical current. When a junction box is used for every electrical connection in a building it is much easier to locate and repair any electrical problems that come up.

## Can I connect grounds from different circuits?

Grounds from different circuits can be spliced in a junction (or switch, or receptacle) box. They should also attach to any grounded switch and on receptacles.

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