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Voltage monitoring relays

Simple and effective monitoring 

Eaton’s voltage monitoring relays are solid-state protective relays that automatically operate when one or more phases of the three-phase supply is lost, or when the phase sequence is reversed. These relays monitor three-phase voltage and respond to abnormal or overcharge conditions, a pre-selected undervoltage threshold and a pre-selected percent of phase imbalance to protect equipment against voltage fault conditions.  

Core features of voltage monitoring relays

  • Adjustable time delay dropout on undervoltage eliminates nuisance tripping caused by momentary voltage fluctuations
  • Specific customizable time delay functions allows for worry-free reliability and ease of use
  • Voltage band provides protection to equipment required to operate within an upper and lower voltage limit, allowing the internal relay to stay energized

Become a motor control master! 

Eaton’s goal is to enhance your product competency, troubleshooting skills and safe operation of motor control products. From beginners who are growing their knowledge to experts who need a refresher, Eaton offers a range of self-guided, eLearning and instructor-led training to meet your individual needs.  

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Technical support

Available for FREE. Contact an EatonCare representative between the hours of 8AM to 5PM EST at 877-ETN-CARE or 877-386-2273 and select OPTION 2. Send an email to TRCAutomation@eaton.com