This Endress Hauser Liquiphant M FTL51C-AYY9DL4E6AA Vibronic Point Level Switch FEL54 is in unused condition and is guaranteed to be fully functional. This item came from a large pharmaceutical company that had surplus overstocked inventory. We urge customers to view all photos as they show overall condition, included accessories, and useful information. Please feel free to contact us with any questions. Design FTL51C: flange, extension pipe and tuning fork are coated. FEL54: Universal current version with relay output; Switches the loads via 2 floating change-over contacts. Electronic insert FEL54 (AC/DC with relay output) Supply voltage: AC 19 to 253 V, 50/60 Hz or DC 19 to 55 V Power consumption: 1.3 W Reverse polarity protection Overvoltage protection FEL54: overvoltage category III FOR ADDITIONAL INFORMATION PLEASE VISIT LINK BELOW: https://portal.endress.com/wa001/dla/5000000/1448/000/03/TI00347FEN_1418.pdf If link is no longer available please contact us for copy of PDF