MEDIUM VOLTAGE LOAD BREAK SWITCH-DISCONNECTORS 12-24 KV - GRANY MV load break switches/disconnectors designed for board manufacturers. Easy making of Air Insulated Switchgear (AIS) modular distribution units, up to 24 kV. Main characteristics GRANY switches/disconnectors are used for the production of very compact medium voltage cut-off devices in SF6. They consist of a moulded enclosure of epoxy resin, permanently sealed and filled with SF6. Movable contacts are triggered by manoeuvred mechanisms or mechanical energy reserves for a control manoeuvre. These switches are motorised and can design a wide variety of MV device functions in order to meet various needs in your applications. q q q q q q q q Nominal voltage: 5.5 kV to 24 kV Dielectric resistance voltage: 50 kV (insulation)/60 kV (disconnection) Shock resistance voltage: 125 kV (insulation)/145 kV (disconnection) Nominal heat current: 630 A Nominal breaking capacity: 12.5/16/20 kA Nominal admissible short-term current: 12.5/16/20 kA Closing power: 31.5/40/50 kA Operating temperature: - 25°C + 50 °C Compact solution Very short breaking time (patented system: magnetic blow-out) Extended life, permanently sealed system Maintenance free active parts Operating safety Very low breaking overvoltage level Improved mechanical and electrical endurance

Solutions for HTA and medium voltage board manufacturers Solutions for medium voltage electrical cabinet designers Solutions for manufacturers of medium voltage machines and devices MV electrical device market

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