Rant for Wednesday!!
Spent half a day yesterday removing/rewiring these exact connectors in a friend's house-->. CLICK HERE
As there was a recent GFCI main panel installation these dang things don't connect the wires well and when a sizable load is applied it pops the breaker off.. Yeah, they are great for the installers as it is quick and easy to just push the wires into it and presto-, you're done! Problem is that they just don't connect the wires very well & the contacting surface is small due to the design.. I can't believe they got these things approved in the first place.. Unbelievable!! If somebody uses these on an old style main panel I can see them heating up and we all know what that could cause.. The owner plugged a saw into the 2nd plug in a 6-plug run and it popped.. It won't happen again as I wired the thing wire-to wire..
I'll NEVER use any of these things when I wire anything!!! EVER!!
End of rant!!