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ABB SPAU 130 C three-phase voltage relay for monitoring system voltage conditions in utility and industrial power networks. Adjustable pickup and drop-out settings with LED status indication.
ABB SPAU130C-AA three-phase voltage relay.
ABB SPAU 140 C synchro-check relay supervising voltage, frequency, and phase angle between two power system sources to ensure safe circuit-breaker closing. Includes dead-bus detection and configurable closing angle limits.
ABB SPAU 330 C1-AA voltage relay, 50 Hz, 80-265 V DC/AC.