Phase and Voltage Monitoring Relays from AutomationDirect

July 13, 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 move, visit the AutomationDirect website by clicking 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

  • Labeling Cables and Wires

    February 3, 2026 Choosing the right wire marker or cable label Cable and wire labeling is critical in the identification, assembly, and repair of electrical control panels, wire harnesses, and data/telecommunications systems. It is an upfront cost that saves time and labor expenses when changes or repairs need to occur to the systems you work Read More…

  • ITC 101: Understanding NEMA Ratings for Electrical Enclosures

    February 3, 2026 Understanding NEMA Ratings for Electrical Enclosures NEMA Ratings are an essential classification system used across North America to define the environmental and mechanical protection provided by electrical enclosures. Developed by the National Electrical Manufacturers Association (NEMA), these ratings help engineers, installers, and specifiers identify the appropriate enclosure type for industrial, commercial, and outdoor Read More…