Morris Products 22158 Terminal Blocks, 20-8 Wire Range, 50 A Current, 300 Volts (Pack of 2) Terminal Blocks - These Electrical Terminal Blocks cut down on short circuits. Touchproof recessed screws and tubular contacts on these electrical terminal blocks provide added safety and helps prevent short circuits Tubular contacts connect stripped, un-terminated solid or stranded wire directly to each contact Integrated Stainless Steel spring wire protectors prevent twisting and breakage of stranded wire during termination Modular 12-circuit design can be cut into smaller sections or stacked end-to-end