We are offering TECO Phase Sequence Corrector Relays are used for protection of Motors, Pumps and Transformers etc. From damage due to missing phase sequence. A wrong sequence is corrected and two output contacts are provided which can be used to switch on the power contractors. Only the correct sequence contractor signal will be on at a time. However contractors must be interlocked during power wiring. The relay resets automatically and remains off when voltage is low, zero, unbalanced or negative phase sequence. All contacts are 5A potential free.