Thermocouple Terminal Blocks: Block Type - Thermocouple Terminal; Construction Style - IEC; Themocouple Type - Type SR; Wire Range - 26-12 AWG; Model Type - WDU 2.5/TC; Material - Wemid; Housing Finish - Dark Beige; Mounting - DIN Rail, TS 35; Temperature Rating - -50 deg to 120 deg C (-58 to 248 deg); Block Width - mm - 10.2 mm; Block Width - in - 0.40"; Manufacturer Series - W-Series