Phase and Voltage Monitoring Relays from AutomationDirect

DCS Phase and Voltage Monitoring Relays from Automation Direct 1 400

July 25, 2022

 

AutomationDirect has added new phase and voltage monitoring relays from ProSense. The PMRU-2C series true RMS phase monitor relays protect 3-phase equipment from damage that can occur when there is a phase loss, phase reversal, phase unbalance, undervoltage, or overvoltage condition. These relays are designed to provide protection for most generator systems and applications that use non-sinusoidal waveforms. With non-sinusoidal waveforms, the true RMS voltage measurement ensures accurate sensing, eliminating nuisance tripping.

Also added are voltage monitor relays for AC single-phase (50 to 60 Hz) or DC circuits to protect equipment from voltage faults. Over/under voltage relays, with fixed or adjustable time-delay drop-out, offer protection from over-or under-voltage conditions. Voltage band relays protect equipment required to operate within an upper and lower voltage limit. The relay is energized if the monitored voltage remains within the adjustable range.

The new ProSense PMRU-2C Phase Monitoring Relays start at $79.00, and the ProSense Voltage Monitoring Relays start at $65.00. All new relays have a one-year warranty.

Automation Direct Logo 300x150

 

 

 

 

To learn more about the new ProSense PMRU-2C Phase Monitoring Relays from AutomationDirect, click here 

 

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • From Factory Floor to Cloud: How Smart Sensors are Powering the Industrial IoT Revolution

    October 14, 2025 Sensors have evolved from simple detection tools to intelligent data sources that drive smarter decisions. They are no longer just watching; they are communicating, diagnosing, and optimizing.  The Eyes and Ears of Automation Sensors are the first line of awareness in any automated system. They detect the presence or absence of objects,… Read More…

  • Moxa’s Multi-Layered OT Security: Edge-to-Core Cyber Resilience

    October 14, 2025 Building on the concepts introduced in ManAuto’s main article, “Futureproof Industrial OT with Moxa’s Secure Edge-to-Core Networking”, this post focuses on strengthening industrial systems through a layered OT security approach. As cyber threats targeting operational technology (OT) environments continue to evolve, implementing a single layer of defense is no longer enough. In this… Read More…