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Siemens 3UG4511-1BP20 Phase Monitoring Relay for voltage monitoring in three-phase systems, operates on 320...500V AC, 50/60 Hz frequency, includes two changeover contacts and screw terminal connections.
The Siemens 5TT3423 is a phase monitoring relay that ensures accurate power supply and prevents motor damage by monitoring the phase sequence.
The Siemens 3UG4512-1AR20 is a powerful phase monitoring relay designed for use in electrical systems with input voltage ranges of 160 to 690V.
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