Garbage Disposal Electrical Wiring

The diagram below shows the power entering the circuit at the grounded outlet box location then sending power up to the switch and a switched leg back down to the outlet.

Garbage disposal electrical wiring.

A dedicated 15 amp circuit is required fed by a 14 2 nm cable with a ground. A switch is located at the kitchen counter top area to conveniently operate the garbage disposal. Garbage disposals do the dirty work of cleaning up the messes after meals. Garbage disposal wiring connections must be concealed within the wire compartment box at the base of the unit behind the metal plate depending on your local jurisdiction requirements the garbage disposal might need to be hard wired no plug or connected with an approved cord and plug.

I also wired up the dishwasher and got all the electrical stuf. You may also elect to feed the disposer with a 20 amp circuit using 12 2 nm wire with a ground. A garbage disposal is typically provided with a 120 volt 20 amp circuit that is shared with the dishwasher. Electrical connections for a garbage disposal.

Choose plastic electrical boxes that have winged hinges on the top and bottom since they re easier to install and don t require a stud as an anchor. These wiring diagrams show typical connections. Look for standard electrical boxes that are about 2 3 inches 5 1 7 6 cm deep for both the switch and the disposal so you have room for all of the wiring. In this episode i wire up a new switch and outlet for a new garbage disposal.

The diagram above shows the power entering into the circuit at the switch box location then sending one power line for the dishwasher and a switched leg for the garbage disposal. When loaded down with garbage they use a good bit of amperage as they grind up the refuse. Buy electrical boxes for your switch and disposal outlet. They are sometimes hardwired directly into a dedicated circuit or they can be wired with an appliance cord that plugs into a wall outlet that is usually located inside the sink base cabinet.

Garbage disposal circuit.