Terminal Blocks, Multi-Position Blocks and Strips: Type - Terminal Block, Barrier Style; Number of Rows - Double Row; Poles - 12P; Rating - Voltage - 600V; Rating - Amps - 20A; Terminal Capacity-Size - 12 AWG; Terminal Type - Binding Head 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 - 6.00"; Length - mm - 152.4 mm; Additional Information - High Barrier; Manufacturer Series - 200 HB Series