Basics of terminal blocks and their various subtypes
ASI ASI391007 UTD-100 NEMA Style Ring Lug Terminal Block, DIN Rail Mounted, 27 mm Wide, 4 to 1 AWG, 130 Amp, 600V, M8 Screw Size, Black (Pack of 10) : Amazon.ca: Industrial & Scientific
1403401 Marathon Special Products, Panel Mount Barrier Terminal Block, 175 A, 600 V