Ilsco PDB-49-500-1 - This Power Distribution Block is Dual Rated for Line Conductor Range 500-4 and Load Range 350-6. It features 4 Ports per Pole Line Side and 9 Ports per Pole Load Side. With a Voltage Rating of 600V and a Conductor Material of Copper, this block is UL and CSA certified, with a black aluminum housing and tin finish connectors. Suitable for a range of conductor types and sizes, it is designed for mechanical connection and has a wire binding torque of 375. Mounting holes are spaced at 3 inches with a diameter of 0.281 inches. This block is suitable for a variety of applications requiring high amperage with the assurance of UL Recognized and CSA approved quality.