FBX

Secondary GIS MV RMU Switchgear up to 24 kV 630 A

Part of SeT Series

Fully SF6 Gas-Insulated Ring Main Unit switchboard for Secondary Medium Voltage distribution networks, available in compact or extensible installation footprints to best suit to your application.

IMPORTANT: From 01.01.2026 F-gas regulation bans SF6-based MV in the EU.

SOLUTION: Go for SF6-free RM AirSeT for full compliance and easy transition.

FBX Schneider Electric Secondary GIS MV RMU Switchgear up to 24 kV 630 A

Features

Gas-Insulated Switchgear
The FBX is a fully SF6-insulated switchboard for secondary distribution networks.

In its compact version (FBX-C), it acts as a Ring Main Unit, includes up to five different functions into a single tank and can be easily integrated into a substation or wind tower mast.

In its extensible version (FBX-E), it becomes a fully modular switchboard suitable for industrial applications.

Both innovative and safe, it is insensible to environment, virtually maintenance free and very easy to install and operate.
  • SF6-insulated switchgear for secondary distribution network
  • SF6 switch-disconnector
  • Protection through fuse combination or vacuum circuit-breaker
  • Two versions : FBX-C (Compact), FBX-E (Extensible)
  • Compliant with IEC 62271-200
  • Rated Voltage: 12 / 17.5 / 24 kV
  • Bus-bar Rated Current: 630 A
  • Feeder Rated Current: 630 A
  • Rated Short Time Withstand Current : up to 21 kA 3 s (up to 25 kA 1 s for 12 kV)
  • Internal Arc Containment : up to 25 kA 1 s
  • Dimensions W x H x D in mm: 2 switch-disconnectors + circuit-breaker or fuse protection functions:
    • 1000 x 1380 x 750
  • Option : can be remotely controlled and monitored

Smart Ready Cubicle
The ideal solution to panel builders with limited investment.
Smart ready cubicles provide from standard product a future access and easy migration to smart RMU functionalities:

  • Easy, fast and secure connections, ready for future LV customization. All connections to RTU are facilitated and located on top of each function of the FBX.
  • Pre-wired cable to facilitate voltage and current connections from cable compartment to LV location.
  • Motorization capabilities for full remote control and command features
  • Simply cubicle operations and maintenance
  • Fast delivery

Contractual warranty
Period : 18 months

Benefits

  • Simple Installation & Operation
    • Very compact with small dimensions
    • Easy installation and extension with plug-in connection
    • Very clear user panel with position indicators
    • Large front cable compartment for easy access to bushings
  • Improved continuity of service
    • Continuity of service LSC2A
    • Can be remotely controlled and monitored
    • Flood proof
    • Independent from environmental conditions even in highly polluted areas
    • Maintenance free
  • Improved personnel safety
    • Internal Arc Withstand
    • Integrated interlocks for fool-proof protection
    • Padlocking available for all operations
  • Fully recyclable

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