Buy IEC Ed. High-voltage switches Part 1: Switches for rated voltages above 1 kV and less than 52 kV from SAI Global. IEC Ed. Cor.1 Corrigendum 1 – High-voltage switches – Part 1: Switches for rated voltages above 1 kV and less than 52 kV. Purchase your copy of BS EN , IEC as a PDF download or hard copy directly from the official BSI Shop. All BSI.
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The product is available for 12kV – 36kV and has a rated current of up to A. The medium-voltage switch-disconnector 3CJ2 is designed according to the clear disconnector principle. Proven hard-gas flat arcing chambers iecc a higher switching capacity than that of its competitors. Simple blade contacts and a torsion-bar spring-operated mechanism increase its making capacity and the mechanical endurance.
While connecting consumers, making on an existing shortcircuit cannot be excluded. That is why, today, switchdisconnectors generally feature a short-circuit making capacity. In combination with iiec, switch-disconnectors can also be used to break short-circuit currents.
The short-circuit current is interrupted by the fuses. Subsequently, the fuses trip the three poles of the switch-disconnector, disconnecting the faulty feeder from the power system. A welded base frame carries the disconnector arrangement and the flat arcing chambers.
IEC System of Conformity Assessment Schemes
Optionally, the switch-disconnector can also be equipped with a make-proof earthing switch or a fuse assembly. Switch-disconnectors are supplied according to category A 20 breaking operations at rated current. A special version with category B breaking operations at rated current is possible.
The 3CJ2 can be wall-mounted with the isolating contact side upwards or downwards, as well as on the floor or on the ceiling — in inverted position. For wall mounting, the preferred mounting position is with the isolating contact side upwards. Standards The switch-disconnectors conform to the following standards and recommendations:.
CEI/IEC interruptores de alta tensión. Parte 1, Interruptores para – Google Books
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Medium Voltage Indoor Devices go. Vacuum Circuit Breaker go. Totally Integrated Power – Consultant Support go. To the top of the page. Dimensions Sample for 12 kV. Type of operating mechanism. Rated normal current A.