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  3. Vacuum recloser
  4. Siemens Medium-voltage – Power distribution

Vacuum recloser 3AD

vacuum recloser
vacuum recloser
vacuum recloser
vacuum recloser
vacuum recloser
vacuum recloser
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Electrical characteristics
short-circuit, three-phase, single-phase, medium-voltage
Other characteristics
outdoor, pole-mounted, IP66
Primary current

Max.: 16,000 A

200 A, 400 A, 630 A, 800 A

Min.: 0 A


27 kV, 38 kV


Safety and increased reliability in MV overhead lines 38 kV Rated voltage up to 38 kV Short-circuit breaking current up to 16 kA Rated normal current up to 800 A Single phase, three-phase and single-triple The Smart Distribution Recloser (SDR) 3AD is a flexible outdoor vacuum switching device – pole or structure-mounted - that can trip and reclose up to nine times in case of a temporary line fault, thus avoiding longer network interruptions. It can be adapted to each area of applications. The SDR 3AD meets all the requirements for outdoor use in accordance with the SDR standards IEEE C37.60 / IEC 62271-111. Combining cutting-edge technology with quality engineering expertise it offers the optimum solution to lead your medium-voltage network into digitalization. · Only two designs covering the whole range (up to 27kV and up to 38kV) · Up to 16 kA short-circuit breaking current and up to 38 kV and rated operating voltage · Rated normal current of 200, 400, 630 und 800 A · Same control cubicle look and feel for all applications, like single-phase, three-phase and single-triple · Long lifetime because of preventive maintenance features like I2t-Calculation for VI- lifetime, internal battery- and capacitor supervision, · Many diagnosis functions with watchdog-alarming to mobile phones and SCADA-System · More than 30,000 switching operations · Protection degree IP66

Other Siemens Medium-voltage – Power distribution products

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