Main Ring Main Units (RMUs) sit at primary distribution points in the MV network. They host load-break switches and circuit breakers that allow incoming feeders to be isolated, switched, and re-routed without interrupting service to downstream consumers. The 'main' designation indicates a higher rating and more functions than a standard RMU.
Schneider Electric's RM6 and FBX (gas-insulated) and SM AirSeT (shielded air-insulated) ranges deliver compact main RMUs with vacuum breakers and integrated protection up to 24 kV.
For full technical specifications, datasheets, and certifications, refer to Schneider Electric's official product range:
RM6, FBX, SM AirSeT
Send us your project specs. Our power engineers will respond with a configured proposal.
Main RMUs sit at primary distribution points in the MV network and host load-break switches and circuit breakers. The 'main' designation indicates a higher rating and more functions than a standard RMU.
They provide up to 4 functions in one compact unit, rated up to 24 kV and 630 A, with vacuum or SF6 / fluoronitrile breakers.
Yes. The eco-conscious SM AirSeT shielded air-insulated (gas-free) option is available, alongside the gas-insulated RM6 and FBX ranges.
Main RMUs include Sepam protection and Easergy monitoring as integrated protection up to 24 kV.
Typical applications include utility primary distribution, major commercial developments, industrial campus headworks, and renewable energy collection points.
As authorised Schneider Electric assemblies, the RM6, FBX, and SM AirSeT ranges are built to international IEC standards for MV switchgear. Full certifications and type-test reports are available on request.
Yes. Integrated Sepam protection and Easergy monitoring support remote indication and control, allowing the unit to be connected to utility SCADA and network automation schemes.
Send us your project specifications, including voltage, number of functions, and protection requirements. Our power engineers will respond with a configured proposal and lead time.