The 1612STD is a 12-position Barrier heavy duty Terminal Block with brass contact, standard connector with serrations for anti-rotation, short circuiting bar with brass insert, 4 shorting pins per block, general purpose phenolic base, brass nickel-plated connector. Current rated up to 75A when wired with crimp type ring, spade or fork terminal, 22AWG minimum and 10AWG maximum wire size.