Marathon Special Products terminal blocks are high-quality, reliable electrical components used to secure and organize electrical wiring in various industrial, commercial, and residential applications. These terminal blocks are designed to simplify wiring connections, provide electrical safety, and enhance the efficiency of electrical systems. Marathons 1323574 is a distrubtion block with 1 in and 1 stud out. It has a wire range on the line side is (1) 2/0 - #14 AWG and on the load side is 1/4 - 20 X 1/2 stud. It is rated for up to 175A and 600V. The terminal block is rated 10,000A short circuit current. The insulation material is thermoplastic and connector is aluminum, tin plated. This 1323574 distribution block is RoHS complaint.