Aka "terminal barrier strips", "terminal strips", "Jones strips" and "terminal blocks", are used to splice wires inside a junction box.
These must be UL recognized and rated at 125 degrees C to be used inside a connector strip.
http://www.allelectronics.com/mas_assets/cache/image/1/0/3/4/4148.Jpg
These must be UL recognized and rated at 125 degrees C to be used inside a connector strip.
http://www.allelectronics.com/mas_assets/cache/image/1/0/3/4/4148.Jpg