Catalogs > Industrial Controls Catalog > Supplemental Motor Protection > Current, Phase, Thermistor, and Motor Rotation Monitoring Relays > Line Voltage and Current Monitor Relays
Line Voltage and Current Monitor Relays
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Standards Compliance and Certifications | |
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Specifications | |
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Bulletin 813S Phase Monitor
Line Voltage Monitor
- Detects Phase Failure, Voltage Unbalance, Phase Reversal, and Undervoltage
- Provides Pre-Start and Running Protection on the Line Side of the Point of Connection
Line Current Monitor
- Detects Phase Failure, Current Unbalance and Phase Reversal
- Provides Running Protection on the Line and Load Side of Point of Connection when Used in a Single Motor Branch Circuit
Line Voltage Monitor and Line Current Monitor are solid-state devices designed for use in 3-phase systems to protect motors and other loads against abnormal voltage/current conditions. In general, the Line Voltage Monitor is applied where pre-start and line-side protection are important, whereas the Line Current Monitor is applied where line- and loadside protection are important.