Sertec Protective Relay Services specializes in extending the life of obsolete electromechanical protective relays. We repair, remanufacture, and retrofit relays of all types and manufacture; and also service specialty electronics used in electrical power systems.

From simple overcurrent induction disk relays to complex distance/impedance relays, we buy, sell and service them all.


Sertec Protective Relay Services
79 Main Street
Seymour, CT 06483