The Terminal Block, Double Deck, 20 Amp, 300 Volt AC/DC, Gray, 4mm, 22 - 12 AWG, available in packs of 50, is a reliable wiring solution distributed by BSP Automation. Designed for ease of use, these NEMA terminal blocks accommodate standard screwdriver sizes, allowing for straightforward wire installation and quick visual checks to ensure correct positioning. Many of these blocks come pre-assembled on a breakaway mounting channel, which includes an end anchor, retaining clip, and end barrier for secure and organized installation. The range includes several types such as open construction, voltage-indicating, fuse, and isolation switch options to fit different application needs.