Overview
Indoor Ring Main Unit (RMU)
The Indoor Ring Main Unit (RMU) is a SF6 gas-insulated switchgear solution designed for safe and efficient power distribution in enclosed environments. Its compact design, high safety standards, and reliable performance make it suitable for industrial plants, commercial complexes, and substations where space constraints and operational efficiency are critical.
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Key Features
Insulation & Safety
SF6 gas-insulated with internal arc resistance (IAC) – AFLR certified
Operational Mechanism
Manual or motorized options for circuit breakers and isolators
Voltage Ratings
Available in 11kV, 22kV, and 33kV, operating at 50Hz frequency
Current Rating
Up to 630A, with a short-circuit withstand rating of up to 25kA for 3 seconds
Compact & Modular
Space-saving extendable design for future expansion
Enhanced Protection
Visible isolation & grounding for operator safety. Interlocking system to prevent misoperation.
Control & Monitoring
SCADA-ready with integrated communication options. Smart sensors for real-time diagnostics
Applications
Indoor Ring Main Units (RMUs) are used for medium-voltage power distribution in enclosed environments such as commercial buildings, residential complexes, hospitals, and industrial facilities. Rated for 11kV, 22kV, and 33kV systems, they provide reliable load switching, fault protection, and network sectionalising. Their compact, type-tested design ensures safety, space efficiency, and minimal maintenance. Ideal for areas where environmental control and operational safety are critical, indoor RMUs help maintain uninterrupted power supply and support modern smart grid infrastructure.
Enquiry
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