Terminal Blocks, Multi-Position Blocks and Strips: Type - Terminal Block, Barrier Style; Number of Rows - Double Row; Poles - 4P; Rating - Voltage - 300V; Rating - Amps - 20A; Terminal Capacity-Size - 12 AWG; Terminal Type - SEMS Pressure Screw; Base Style - Mounting - Closed Back, Surface Mount; Center Spacing - 0.437" (11.1 mm); Material - Terminal - Plated Brass, Steel Screw; Material - Housing - Phenolic; Housing Finish - Black; Operating Temperature - 150 deg C (302 deg F) Max.; Length - in - 2.50"; Length - mm - 63.5 mm; Manufacturer Series - 200 Series