Terminal Blocks, Multi-Position Blocks and Strips: Type - Terminal Block, Barrier Style; Number of Rows - Single Row; Poles - 3P; Rating - Voltage - 600V; Rating - Amps - 30A; Terminal Type - Threaded Stud; Base Style - Mounting - Surface Mount; Center Spacing - 0.75" (19.05 mm); Material - Terminal - Steel; Housing Finish - Black; Operating Temperature - 120 deg C (248 deg F) Max.; Length - in - 3.75"; Length - mm - 95.3 mm; Manufacturer Series - C4559 Series