Join Date: Oct 1999
Location: On the East Coast
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Yes, for the type intended for that purpose. But the ones in the Halo cans are not. They have a specific load rating.
And yes, they are allowed by code -- even for full loads. But history is littered with items that were once approved (in the electrical world, medical world, etc.) and now are not. Traditional screw connectors and wire nuts have a 50+ year history of safe operation. If you are comfortable with stab connectors for full loads and want to use them, great.
I would not want them used in my home, however. Perhaps that makes me a neo-Luddite. But in the real world copper and brass oxidize which raises the resistance at the point of contact. If you have ever unscrewed the wire connector on a 50 year-old receptacle, the copper under the head of the screw at the point of connection is bright and shiny, just like it was when the original electrician tightened the screw many years ago. Unless the new stab connectors have very strong "stabbing" force, air will penetrate the point of contact and it will oxidize. Over time this will cause problems and for high current circuits it is a fire hazard.
All the approval seals and affirmations in the world won't change the laws of physics.