RMU Ring Main Unit

Fembosco Engineering Limited is the leading supplier of Electrical & Industrial Systems in Nigeria

FEMBOSCO Engineering Limited commenced operations in the year 1995 primarily to serve as suppliers & assembling of quality engineering products to building projects and Industries/Manufacturing Industries/ThermalStation/Oil Industries.

Our Vision is making a new dimension in marketing of reliable products against the fake products in the larger part of our present day Nigeria market

RMU Ring Main Unit

The Type GR-1 RMU is designed with a combination of innovation and state-of-art insulation principles & current interruption techniques. GR1 is available for 12kV which can withstand 20kA for 3 seconds. This outdoor design is safe to operate with the help of mimic diagram & position indicators to guide operators. All passive interlocks, comprehensive padlocks are designed for user friendly operations and are safe.


  • SF6 gas insulation & current interruption – No fire hazard
  • Maintenance free & sealed for life contact system
  • Outdoor installation
  • Robust construction
  • Tee-off circuit breaker with integral protection system
  • Low cost cable termination
  • Fully extendable options
  • Motorized mechanism

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