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 or 2 #12 AWG, 1 or 2 #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 red. This block is UL component recognized for up to 70 amperes and CSA certified for up to 40 ampere. Both UL and CSA have the block rated at up to 600 VAC or VDC.