Not for 12 AWG with jacket. It is suitable for 12 AWG bare wire. Therefore, you must strip the wires along the entire insertion length of the connector, and the bare wire will inevitably be exposed on the outside of the connector. In that case, you can assume those 12 gauge wires are very tight to get there. No, the lever closes, but with a little effort, the wires slip out. 14awg have not tried.
π΅ GKEEMARS 106 Pcs Lever Wire Nuts Connectors: Compact Splicing Kit for Electrical Wires - Solid, Stranded, and Flexible Wires (Blue)
9 Review
50-Pack Lever Connectors Nuts 5 Conductor Combination Compact Wire Connectors Fast Connection Terminal 28-12 AWG Multi Type Compatible
23 Review
CEDFONJER Conductor Terminal Block: 24 Pack of Multi-Function SPL-1 Quick Terminal Block Splicing Type Compact Wire Connectors for Universal Soft and Hard Wire Assortment Conductors
8 Review
π 50-Piece Compact Wire Connectors with Lever Nuts for Easy and Fast 4-Conductor Combination Terminal Connections - Suitable for Multiple Types, 28-12 AWG
25 Review
π‘ High-Quality Advance ICN-4P32-SC Electronic Fluorescent Ballast: Ideal for 4 Lamps, 32W T8, 120/277V
3 Review
Robertson Worldwide ISL432T8HEMV AH 3P20160 120-277V 50-60Hz High Power Factor 4 F32T8 Linear Lamp Fluorescent eBallast
6 Review
β‘οΈ Sunpark LC-12014T (1) FC12T9 32W Circline (1) 2D 38W (1) FC16T9 40W Circline (1) FC9T9 30W Circline Lamp Compact Electronic Fluorescent Ballast with Circline Lamp Plug 120V
7 Review
π‘ Hydrofarm Quantum QT400 Dimmable Ballast for 400W Grow Lights
5 Review