Tons of sizes and configurations. I was skeptical too back in the 80's when I was introduced to them but after a trial, we ended up doing the whole plant with them and the spares too. Change out for the electricians was mere minutes. I would think it would pay off on installation of a large number for contractors too. Instead of 14 or 20 minutes, 2 or 3 minutes to strip and crimp and 1 minute to join, slip on the cover and ty-rap. Of course I'm talking industrial (which is all I've ever done).I've seen those but they look like a flimsy connection plus how would you terminate more than one motor lead to one incoming wire?
Wow. I'd be interested in where the failure was on the connector. I would have called T&B over that. Like I said in the other reply, we did the whole plant like that from 200 HP DC motors to 1 HP AC motors. Never had a single problem in over 8 years that I was there and saved a ton of downtime. If you're serious about dumping them, PM me for my address.