Quote:
Originally Posted by Porsche_monkey
Properly installed 'push-lock' connections are 100% safe. Provided the strip gage is used and the wire is seated to the right depth they are fine. UL doesn't approve unsafe concepts.
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They may be approved, but they have a high failure rate over time. There's also the possibility of arc'ing. The switches/receptacles that were installed in my home were the cheapest available (didn't even have screw terminals) and many did not work.
Want to see a UL approved electrical device that failed on me big-time?
(I carry a melted one in my work truck to show other electricians who use them)
Although rated for 240v, I will only use these on low-voltage circuits now.