Feed-Thru Blocks, With Internal Component: Type - Surge Suppressor Terminal Block; Component Rating - 12A; Configuration/Wiring - Double Tier 4-Wire; Construction Style - IEC; Rating - Voltage - 48VDC; Rating - Amps - 12A; Wire Range - 24-12 AWG; Model Type - TT-UKK5-M/48DC; Wire Terminal - Screw Clamp; Housing Material - Polyamide 6.6; Housing Finish - Black; Mounting - DIN Rail/G-Profile Rail; Temperature Rating - max - 80 deg C 176 deg F; Temperature Rating - min - -40 deg C -40 deg F; Block Width - 0.24" 6.2mm; Block Height - 3.14" 80mm; Block Length - 2.67" 68mm; Additional Information - For Mounting on NS 32 or NS 35/7.5, Closed Housing; Manufacturer Series - TT Series