Schneider Electric RM6 RMU 2+1 – 12 kV, 25 kA, SF₆ Insulated Switchgear

The Schneider Electric RMU 2+1 – RM6 Series is a high-performance, factory-assembled, gas-insulated switchgear module engineered for medium-voltage secondary distribution networks. Built in 2018 in France, this unit offers a rated voltage of 12 kV and supports up to 630 A nominal current at 50°C. It provides excellent arc-extinguishing and insulation capabilities using SF₆ gas.

The switchgear is designed to withstand demanding operating environments, delivering a short-circuit breaking capacity of 25 kA and a short-circuit making capacity of 52 kA. With its compact form factor, total weight of 340 kg, and robust metal-enclosed design, this RMU ensures safety, ease of installation, and low maintenance.

The 2+1 configuration allows for two incoming lines and one outgoing or transformer connection, making it suitable for ring-type or radial distribution systems.

Specifications:

– Manufacturer: Schneider Electric
– Country of Manufacture: France
– Model / Type: RM6 – RMU 2+1
– Serial Number: SF-2018-W18-3-0025
– Year of Manufacture: 2018
– Manufacturing Specification: S-4035K
– Rated Voltage: 12 kV RMS
– Impulse Withstand Voltage: 95 kV Peak
– Rated Normal Current at 50°C: 630 A
– Rated Short-Time Current: 25 kA RMS
– Short-Time Duration: 1 second
– Rated Breaking Capacity: 25 kA at 12 kV RMS
– Rated Short Circuit-Making Capacity: 52 kA at 12 kV RMS
– Insulation Medium: SF₆ Gas
– Total SF₆ Volume: 200 liters
– Total Assembly Mass: 340 kg
– Configuration: 2+1 (2 Incoming + 1 Outgoing/Feeder)

Performance Notes:
– Fully sealed and maintenance-free for up to 30 years
– SF₆ gas insulation for compactness and high dielectric strength
– Ideal for indoor or compact substation applications
– Modular RM6 architecture supports future expansions
– High fault interruption and making capacity ensure network safety

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