Ring Main Unit

Ring Main Unit

A Ring Main Unit (RMU) is a compact, sealed medium-voltage switchgear used to ensure reliable distribution of electrical power. It enables connection, switching, and protection of transformers and other equipment in a ring network, allowing continuous supply even during maintenance or faults. Designed for safety and durability, RMUs are widely applied in urban, industrial, and renewable energy distribution systems where space efficiency and high reliability are critical.