About
Models
Options
Software
Upgrade
Phase Guard - Digital Phase Failure Relay unit.

Standard Features on All Models

Phase Guard Model P

The master relay coil in this model is energized when conditions are normal.

The master relay will trip on a loss of 1 or 2 phases and also on total power loss.

Recommended Use

This model is recommended for protection of pumps, compressors, ventilation fans, etc. or any individual or group of motors on a common feed.

Buy Now

Phase Guard Model PND

The master relay coil in this model is de-energized when conditions are normal.

The master relay will not trip on total power loss.

Recommended Use

A total power loss will not affect the model PND since the master relay is normally de-energized. This characteristic helps eliminate the possibility of nuisance tripping during storms and power outages.

The PND model is recommended for applications involving a main breaker or bolted pressure switch which must be manually reset after an outage occurs.

Buy Now

Additional Options

The functionality of each Phase Guard can be extended and fully customized with a variety of different options and features. These options can be purchased at the time of the original order or they can be purchased at a later date and activated on the Phase Guard by using the Admin Software.
View List of Available Options