Power Distribution Block, For Conductor Material Aluminum, Copper, Line Connections/Pole 1, For Line Copper Wire Size - Minimum 14 AWG, For Line Copper Wire Size - Maximum 2/0 AWG, Load Connections/Pole 1, For Load Copper Wire Size - Minimum 14 AWG, For Load Copper Wire Size - Maximum 2/0 AWG, Maximum Current - Copper Conductor 175 A, Maximum Voltage 600 V AC/DC, Mounting Type DIN-Rail, Surface Mount, Number of Poles 1, Overall Depth 3.7 in, Overall Length 2.15 in, Overall Width 0.99 in This efficient aluminum block splices cables or splits primary power into a wide range of secondary circuits and provides a fixed tap-off point. It accepts aluminum or copper wire, and saves splicing and taping time for contractor rework.