مرحل تسلسل الطور من De Dietrich 711332300

The Phase Sequence Relay monitors the phase order in three-phase electrical systems, ensuring correct motor rotation and preventing equipment damage. It is commonly used in burner and boiler controls to safeguard pumps, fans, and compressors. This relay provides reliable protection against phase reversal or loss, enhancing system safety. An important component for electrical maintenance in heating installations.