Siemens SDV7 outdoor distribution circuit breakers deliver proven vacuum interruption in a compact, robust enclosure for reliable medium‑voltage performance in harsh outdoor conditions. Choose non‑arc‑resistant or arc‑resistant designs with stored‑energy or magnetic‑actuator operators to fit your application from 15.5–38 kV.
Portfolio includes:
Arc‑resistant enclosure option tested to IEEE C37.20.7 type 2B helps redirect internal arc energy away from operators, supporting substation safety strategies.
Voltage ratings from 15.5 to 38 kV, short‑time withstand up to 40 kA, continuous current up to 3,000 A, and BIL up to 200 kV cover utility and industrial feeder needs.
Time‑proven vacuum interrupters and a simple current path support long electrical life and low service needs, helping minimize planned outages.
Select a stored‑energy spring operator or a magnetic‑actuator operator; both are tested to IEEE C37.09 to meet performance requirements and project preferences.
Optional extended capacitor switching and tested out‑of‑phase switching provide capability for demanding distribution operations.
IEEE rain‑tested enclosures, stainless exterior hardware, porcelain bushings, and available seismic qualification support long outdoor service.