Sertec is a stocking location of the ABB type 51I Relay, Catalog Number: 443S1140. We are also setup to recondition, repair, and re-calibrate your existing type 51I Relay. All ABB type 51I Relay comes with a full two year warranty.
Please send us an email inquiry at firstname.lastname@example.org or call us 24/7. Call 203-888-7500!