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 #10 AWG. Each box lug terminal is approved for use with various wire combinations. Each lug accepts 1 # 10 AWG, 1 #12 AWG, 1 #14 AWG, 1 or 2 #16 AWG, 1 or 2 #18 AWG, 1 to 5 #20 AWG or 1 to 8 #22 AWG wires. The nylon block is molded in the natural color of nylon (off white). This block is UL component recognized and CSA certified for up to 30 ampere up to 600 VAC or VDC.