Siemens 3TX4490-0W Description Description Siemens VARISTOR 127/240VCA 150/250VDC Related products SIEMENS 1790L811A SIEMENS 1FT5066-1AF71-4AA0 SIEMENS 1FT5066-0AC01-2-Z SIEMENS 1FK7063-5AF71-1FG2 SIEMENS 1FK6060-6AF71-1TG0 SIEMENS 1FN1910-0AA20-1AA0