Project Description


Withdrawable Metal-clad Switchgear

The QBN7 is a Medium Voltage Air Insulated Switchgear, constructed on a modular design with metallic partitions, making it easy to extend with more feeders.

The installation area required is quite small, but without compromising the operational safety or easy access for maintenance.

The standard operation of the equipment is exclusively carried-out from the front and the need to access it from the rear is limited to the connection of the MV cables.

The construction of QBN7 switchgear is internal arc resistant in accordance with IEC 62271-200, PM type, A FLR accessibility, for the protection of personnel and other equipment.

The cubicles are fi tted with DIVAC withdrawable vacuum circuit breakers, with high electrical and mechanical performance in accordance with IEC 62271-100, E3 and M2 classes.

Always in the forefront of the most demanding performances, the QBN7 range has already reached 31.5 kA.

  • Modular construction
  • Expandable
  • Small installation area
  • Operational simplicity
  • Exclusively operated from the front
  • Internal arc resistant
  • Equipped with a vacuum circuit breaker (E3 and M2 classes), with high electric and mechanical life
  • Possibility of wall-mount installation (Special Request)
  • Reliable and requires little maintenance
  • Insertion/extraction of the circuit breaker with the compartment door closed for full operator safety
  • Several optional equipment as specifi ed by the customer