Linergy NEMA sectional terminal blocks are for terminating wires in a control panel and are designed to NEMA standards. This terminal block has a box lug connector for use with solid or stranded copper wires from #22 through #8 AWG. Each box lug terminal is approved for use with various wire combinations. Each lug accepts 1 #8 AWG, 1 # 10 AWG, 1 or 3 #12 AWG, 1 or 4 #14 AWG, 1 to 4 #16 AWG, 1 to 5 #18 AWG, 1 to 8 #20 AWG or 1 to 10 #22 AWG wires. The nylon block is molded in black. This block is UL component recognized and CSA certified for up to 60 ampere and up to 600 VAC or VDC.