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Seamlessly integrated with the Easergy T300 remote terminal unit (RTU), the smart ring main unit (RMU) is an innovative solution that makes it easier for you to answer the evolving challenges of electrical distribution. An all-in-one solution, the smart RMU is easy to purchase, install, and maintain, helping to reduce operational costs. Its robust design fits even harsh environments.
  • Take charge of your grid evolution

    Explore the key features of the smart ring main unit and learn how it can help you transform your network into a future-ready grid
  • Take a closer look

    Zoom into the smart ring main unit (RMU) to see its fully integrated sensors for voltage, power, current, and temperature monitoring.
  • Stay in touch with Ringmaster at any time

    Delve into hi-reliable gas-insulated switchboard solutions for underground secondary distribution, no matter where you are. With the eCatalog 3D Power app, you can explore the Ringmaster technology easier than ever.
Aerial view of a smart city at night, smart buildings.

The cornerstone of a smart grid

Discover how smart RMUs are introducing smart-grid capabilities into MV/LV substations.

See the new world of energy in 3D+E

Discover how digitization, decarbonization, and decentralization are transforming the energy world.

Improve grid reliability with EcoStruxure

Find out how our solutions help SA Power Networks deliver reliable power in extreme conditions.
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