Feed-Thru Blocks, With Internal Component: Type - Surge Suppressor Terminal Block; Configuration/Wiring - Double Tier 4-Wire; Construction Style - IEC; Rating - Voltage - 120VDC; Wire Range - 20-10 AWG; Model Type - TT-STTB-F-PE; Wire Terminal - Screw Clamp; Housing Material - Polyamide 6.6; Housing Finish - Black; Mounting - DIN Rail, 35mm; Temperature Rating - max - 85 Deg C 185 Deg F; Temperature Rating - min - -40 Deg C -40 Deg F; Block Width - 0.24" 6.2mm; Block Height - 3.28" 83.5mm; Block Length - 1.87" 47.5mm; Additional Information - For Mounting on NS 35/7.5; Manufacturer Series - TT Series