Terminal Feed-Thru Blocks, Standard: Type - Standard Feed-Thru Terminal Block; Configuration/Wiring - Single Tier 1-Circuit 2-Wire; Construction Style - IEC; Rating - Voltage - 600V; Rating - Amps - 20A; Wire Range - 26-12 AWG; Model Type - WDU2.5; Wire Terminal - Screw Clamp; Housing Material - Wemid; Housing Finish - Dark Beige; Mounting - DIN Rail, TS35; Temperature Rating - max - 120 deg C (248 deg F); Temperature Rating - min - -50 deg C (-58 deg F); Block Width - mm - 5.1 mm; Block Width - in - 0.20"; Block Height - in/mm - 1.85/47; Block Length - in/mm - 2.36/60; Manufacturer Series - W Series