A: These connectors are for two similar sized wires. Depending on the circumstances, connecting 12 awg to 22 awg could result in exceeding the max rated amperage for the smaller wire, resulting in shock or fire.
A: Hey Mark, based of the wire size I'd say this would be fine to use as long as the romex wire has insulation that can be pierced by the tap. Regarding your question on the box, I would follow-up with a local inspector in your area to verify. Hope this helps!
|Brand||Gardner Bender||Gardner Bender||Gardner Bender||Gardner Bender|
|Name||22-10 AWG Tap Splice Assortment (10-Pack)||22-10 AWG 10-Circuit Terminal, Block (1-Pack)||100-Piece Terminal Kit||22-10 AWG Butt Splice Heat Shrink, Assortment (24-Pack)|
|THD SO SKU||1005696598|
|View Product||View Product||View Product||View Product|