Reliable Secondary Switchgear Solutions
Ring Main Units (RMUs)
At Lucy Electric, we offer a comprehensive range of Ring Main Units (RMUs) designed for exceptional performance, safety, and long-term reliability. Developed for medium voltage distribution networks, our RMUs are suited to both indoor and outdoor installations – even in the most demanding environments.
Our portfolio includes air insulated, gas insulated, and oil insulated RMUs, all built to meet international electrical distribution standards. Our latest air insulated models use synthetic air to eliminate SF₆, delivering strong environmental benefits without compromising functionality. Whether you’re modernising existing infrastructure or deploying new secondary switchgear, Lucy Electric’s RMUs ensure efficient, sustainable, and future-ready power distribution.
Air Insulated Ring Main Units
Our Air Insulated RMUs – including the innovative AegisEcoTec and SabreEcoTec – are engineered for high performance with a strong focus on sustainability. These SF₆-free units use synthetic air insulation, delivering the same robust protection and reliability while offering clear environmental advantages by eliminating harmful greenhouse gases.
By adopting synthetic air technology, Lucy Electric’s RMUs significantly reduce the carbon footprint of power distribution networks, supporting progress toward Net Zero goals and a cleaner, more sustainable future.
Designed for quick installation, minimal maintenance, and dependable operation over the long term, these RMUs provide utilities and energy providers with a smart, future-ready solution that does not compromise on safety, performance, or efficiency.
Whether you’re upgrading your network or building new infrastructure, Lucy Electric’s air insulated RMUs deliver a cleaner, safer, and more responsible approach to power distribution.
Gas Insulated Ring Main Units
Our Gas Insulated RMUs are compact, highly reliable, and suitable for locations where space is limited or where harsh weather conditions are a factor. Filled with SF₆ gas for insulation, these units offer excellent safety and operational performance.
Oil Insulated Ring Main Unit
Our Oil Insulated RMUs are trusted for their mechanical durability and long service life. They are ideal for remote and rural network locations where robust, time-tested technology is essential.
