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Description
Three-Phase Monitor Relays continuously monitor and detect voltage faults to protect equipment in three-phase systems. These relays retain indication and continue monitoring even with a lost phase. True RMS voltage measurement ensures more accurate sensing across more applications.
Three-Phase Monitor Relays are available with plug-in or Din-rail enclosures that offer protection from a combination of voltage faults: Phase Loss, Phase Reversal, Phase Unbalance, Under Voltage, or Over Voltage. These relays are compatible with most Wye or Delta systems with no connection to neutral required.
PLUG-INPBDU Series (17.5 mm wide) and PMD Series (52.5 mm wide) mount on 35 mm DIN-rail. Both can be panel mounted with two screws by extending the black clips from under the relays. Full fault indication on top of units facilitates easy troubleshooting.
Relays protect and communicate fault conditions with Modbus TCP to reduce downtime and service costs. These relays improve decision making within smart control systems. Real-time and historical data is available for alerts, predictive maintenance, and troubleshooting.
Inventory
Displaying price & availability for Virginia, United States in CAD Change location
21 models matching criteria
3-phase monitor relay, 190-500 VAC, 8 pin SPDT 10 amp relay, phase reversal - fixed trip
5 - 7 days
$162.02CAD
Does not ship to VA, US
3-phase monitor relay, 208 VAC, 8 pin SPDT relay, phase loss, phase reversal, undervoltage with adjustable undervoltage trip
8 - 11 days
$179.13CAD
Does not ship to VA, US
3-phase monitor relay, 240 VAC, 8 pin SPDT relay, phase loss, phase reversal, undervoltage with adjustable undervoltage trip
5 - 7 days
$179.13CAD
Does not ship to VA, US
3-phase monitor relay, 190-500 VAC, 8 pin SPDT 10 amp relay, phase loss, phase reversal - fixed
5 - 7 days
$180.03CAD
Does not ship to VA, US
3-phase monitor relay, 575 VAC, 8 pin SPDT 10 amp relay, phase reversal - fixed trip
8 - 11 days
$180.64CAD
Does not ship to VA, US
3-phase monitor relay, 400 VAC, 8 pin SPDT relay, phase loss, phase reversal, undervoltage with adjustable undervoltage trip
8 - 11 days
$188.85CAD
Does not ship to VA, US
3-phase monitor relay, 480 VAC, 8 pin SPDT relay, phase loss, phase reversal, undervoltage with adjustable undervoltage trip
5 - 7 days
$188.85CAD
Does not ship to VA, US
3-phase monitor relay, 575 VAC, 8 pin SPDT 10 amp relay, phase loss, phase reversal - fixed
8 - 11 days
$200.70CAD
Does not ship to VA, US
3-phase monitor relay, 575 VAC, 8 pin SPDT relay, phase loss, phase reversal, undervoltage with adjustable undervoltage trip
8 - 11 days
$207.83CAD
Does not ship to VA, US
3-phase monitor relay, 190-500 VAC, 8 pin plug-in 10 Amp SPDT relay, phase loss, reversal, unbalance, over/under voltage - fixed
8 - 11 days
$241.07CAD
Does not ship to VA, US
3-phase monitor relay, 208-480 VAC, DIN Rail, 5 Amp SPDT relays, phase loss, reversal, adjustable unbalance
5 - 7 days
$249.49CAD
Does not ship to VA, US
3-phase monitor relay, 190-500 VAC, 8 pin plug-in 5 Amp SPDT and SPNO relay, phase loss, reversal, unbalance (alarm-no trip), over/under voltage - fixed
8 - 11 days
$250.49CAD
Does not ship to VA, US
3-phase monitor relay, 190-500 VAC, 8 pin plug-in 5 Amp SPDT and SPNO relay, phase loss, reversal, unbalance, over/under voltage - fixed
8 - 11 days
$250.49CAD
Does not ship to VA, US
3-phase monitor relay, 120 VAC, 8 pin plug-in, 10 Amp SPDT relay, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
8 - 11 days
$263.50CAD
Does not ship to VA, US
3-phase monitor relay, 190-500 VAC, 8 pin plug-in 10 Amp SPDT relay, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
5 - 7 days
$277.00CAD
Does not ship to VA, US
3-Phase Monitor Relay; 12 Pin Plug-in; 190-500VAC; 5A DPDT; Loss/Reversal/Unbalance; Under/Overvoltage
8 - 11 days
$278.84CAD
Does not ship to VA, US
3-phase monitor relay, 575 VAC, 8 pin plug-in, 10 Amp SPDT relay, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
8 - 11 days
$297.18CAD
Does not ship to VA, US
3-phase monitor relay, 190-500 VAC, DIN Rail, 10 Amp DPDT relays, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
5 - 7 days
$315.88CAD
Does not ship to VA, US
3-phase monitor relay, 575 VAC, DIN Rail, 10 Amp DPDT relays, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
5 - 7 days
$326.49CAD
Does not ship to VA, US
3-phase monitor relay, 120 VAC, DIN Rail, 10 Amp DPDT relays, phase loss, reversal - fixed, unbalance, over/under voltage - adjustable
11 - 14 days
$335.79CAD
Does not ship to VA, US
3-phase monitor relay, 190-600 VAC, DIN Rail, 10 Amp DPDT relays, phase loss, reversal - fixed, unbalance, over/under voltage - adj, with Modbus TCP
5 - 7 days
$845.55CAD
Does not ship to VA, US