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IF your house was built in the 80s this could burn it to the ground.

Seriously, not click bait.
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Quick connect or push in electrical outlets or switches are bad news. the way home wiring is done each device is in series, so every bit of current on the last outlet passes through the very first and each one after. that means that there is as much as 15 amps trying to get past the tiny cross section of a bit of brass that snags the wire when Iit is pushed into the ez install outlets and switches. this is the 3rd instance were I have discovered an outlet overheating and eventually causing failure of the entire circuit. I promised myself that I would replace every one in the house, but procrastination and out of site and mind prevented me from addressing this dead serious risk. one of those times there was evidence of flames at some point. get an electrician to replace all of your old switches if they used this terrible type of design.
 

Comments

I call them back stabbing, even today the Quick Connect push in connection is there on many manufacturers brands of receptacles and also switches.

The connection over time loosens from vibration and oxidation. This poor connection then overheats (discoloration of the wire insulation).

I never used the quick terminals for my customers, always the screw terminals. There are two types of termination using screw terminals, the conventional wrap around the screw and there is also a sandwich type where the wire enters from the back but the screw is used to tighten the connection. (Not to be confused with the Quick Connect spring action

If there are multiple wires to terminate on each side then pigtail them and bring a single wire to the terminal. Always wind the wire in a clockwise direction around the screw and tighten firmly.

The ground (bare or green wire) goes on the green tinted terminal screw, The white (neutral) wire goes to the silver or chrome screw terminal and the black (hot) wire goes to a brass or black colored terminal screw.

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