Industrial motor protection

Choose your Phase-Guard

Every Phase-Guard provides dependable three-phase monitoring in a rugged, field-upgradable package. Choose the relay behavior that fits your application.

  • Protects against phase loss and 12% or greater phase unbalance
  • Automatically resets when balanced voltage is restored
  • Includes a 30 amp DPDT output relay
  • Two-line status display and 25-event fault log
Phase-Guard digital phase failure relay

Compare base models

Both models include the same protection and monitoring features. The difference is how the master relay behaves during normal operation and a total power loss.

Model P

Energized in normal conditions

The master relay trips on the loss of one or two phases and on total power loss.

Configure Model P
Model PND

De-energized in normal conditions

The master relay does not trip during a total power loss, helping prevent nuisance trips during storms and outages.

Configure Model PND

Settings and behavior can be further adjusted with available features and the Phase-Guard Admin Software.

Monitor remotely

Connect with CloudCom for remote status monitoring and real-time alerts by text or email.

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