Sertec is a stocking location of the Siemens type ZSI-Module Relay, Catalog Number: 3WL9111-1AT21-0AA0. We are also setup to recondition, repair, and re-calibrate your existing type ZSI-Module Relay. All Siemens type ZSI-Module 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!