Wednesday, March 18, 2020

How to Use Snap on Plugs and Outlets

Snap on or slide on plugs and outlets are a quick and easy way to add a plug or outlet to a lamp cord. They do not require any wire stripping, and connect the wires within minutes. With a few simple tips, you will be on your way to re-plugging all your lamps.

48514 - Leviton Brand Quick Attachment Plug

48525 - Gilbert Female End Connector

48555B - Brown Slide On Type Polarized Lamp Plug

These types of plugs are offered for SPT-1 or SPT-2 cord types. The first thing you will need to do is identify the type of cord your are trying to plug. Every cord is labeled with the type in small font on the cord itself. You are looking for lettering that appears like this.

Lamp Cord Marking with SPT-1 and SPT-2
Now that you have identified the cord type, select your corresponding plug or outlet style and color. The basic colors offered are black, white, brown, ivory, clear gold, and clear silver. These colors correspond with typical lamp cord colors.

With the cord identified and the corresponding snap plug acquired, you are ready to connect the two together. For the slide on plugs and outlets, remove the back part of the plug:



Notice the piercing blade in the outlet: one for each cord. The piercing blade corresponds to the prong on the plug and the polarity of the plug and wire. On the wire when you identified the SPT size, you will notice one wire is ribbed and the other wire is smooth. The smooth wire is the hot side and should align with the piercing blade for the thin prong on the plug. The end of the wire should be placed in the end of the plug and laid across the piercing blades.

The cap now slides over the plug and applies pressure on the piercing blades.


For snap on plugs, the procedure is similar. First, you will need to separate the interior of the plug from the shell. Spread the prong of the plug all the way apart.

Identify the smooth wire and corresponding piercing blade. These piercing blades are located inside the interior of the plug. Slide the cord in through the plug cap and then into the interior of the plug.



Push the plug prong together and push the interior back into the plug shell. The interior should sit completely back in the shell and be flush in the front.


Now you have it. While there are other types of plugs with screw terminals, the basics are the same: know the type of cord you are working with to make sure it is compatible, identify the smooth or hot wire and connect the hot side to the thin plug prong.

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