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What is SM 500 Voltage Monitoring Relay Guide about?

The document describes a voltage monitoring series called SM500 that protects against phase loss, phase reversal, phase asymmetry, and over/under voltage conditions. It can monitor 1 or 3 phase systems and has selectable trip levels and time delays. Models are available with 1 or 2 changeover contacts and can operate at 240VAC or other voltages.

Author

ravi kumar

Language

EN