Sertec is a stocking location of the Westinghouse type SDF-1 Relay, Catalog Number: 717B920A10. We are also setup to recondition, repair, and re-calibrate your existing type SDF-1 Relay. All Westinghouse type SDF-1 Relay comes with a full one year warranty.
Please send us an email inquiry at sertec@cbsalesne.com or call us 24/7. Call 203-888-7500!