Skip navigation
Medium-voltage circuit breakers

Medium-voltage circuit breakers

The MagVac line of medium-voltage circuit breakers (MVCBs) combines vacuum interrupter technology with linear magnetic latching actuators to eliminate more than 100 points of failure from traditional vacuum interrupter-based MVCB designs. The magnetic latching design delivers standard break times of less than three cycles and as low as one cycle for special applications. Each breaker comes with six NO contacts, six NC contacts, and a visual position indicator. An ANSI/IEC/BG-tested indoor switching module (ISM) simplifies interlocking through an integrated manual trip lever at the rear of the MVCB that blocks the unit both electrically and mechanically.


For more information, visit

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.