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Automatic isolator switch S2DA
high-voltagecenter break

automatic isolator switch
automatic isolator switch
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Voltage level
Other characteristics
center break

Max.: 550,000 V

Min.: 72,500 V


The center break grid disconnector known as the Alstrom Grid S2DA, is one of the most commonly used in the world due to its easy, yet effective design in which both insulators open and close the switch. The rated voltage of this design is from 72.5 to 550kv. It is reliable in many weather conditions such as high winds or heavy ice. It remains stable in the closed position during short circuits and has flex technology for inspection-free and long-term operation. The design of this product is rugged and assures high strength based on its galvanized steel channel structure and base. It is easilyy retro-fitted with one or two earthing switches and has customized features and solutions available.
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.