How many wires can be tapped into a light fixture?
Overload here has to do with size of the box and number of wires, not the kind of fixture or the number of amperes or watts. You need 2 cubic inches for each 14 gauge wire end entering the box, however count 2 ci just once for all the ground wires. Add 2 more ci for all of the wire clamps that protrude into the box. Add 4 ci for each switch or receptacle unit inside the box. Nothing needs to be counted for short lengths of wire (pigtails) completely in the box and for wire nuts.
Most recessed "can" ceiling lights have a small box for connections off to the side of the "can". The small box usually cannot accept more than two cables each with a hot wire and a neutral wire (and a ground wire).
Just because the box has 4 slots for cables to enter does not mean you can use all of them. The 4 slots are for such situations as cables entering from the top versus entering from the bottom.
The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
Last edited by AllanJ; 07-10-2011 at 10:49 PM.