Sertec is a stocking location of the ABB type 51D Relay, Catalog Number: 443S6190. We are also setup to recondition, repair, and re-calibrate your existing type 51D Relay. All ABB type 51D Relay comes with a full two year warranty.
Please send us an email inquiry at email@example.com or call us 24/7. Call 203-888-7500!