Electric Power Grid Upgrade

Recently, an electric power company selected a 2 pole, 15 amp, UL489 listed CX-Series (CX2-B0-12-615-2DA-13G) as the hydraulic magnetic breaker to use in substation racks as an effort to improve its networking capabilities.  The goal is to create a smart grid by converting their existing remote terminal units from serial communications protocol to Internet protocol. Using this approach with an Ethernet connection allows it the flexibility to interface faster and in real time with corporate servers and thus establishing a smarter service grid.

Industry Trend

Further, "under the American Recovery and Reinvestment Act of 2009, the Department of Energy was charged with investing $4.5 billion to modernize the U.S. electric grid through the deployment of smart grid technologies" (Hoffman, Patricia -Assistant Secretary DOE). This creates a real opportunity for increased sales of the CX-Series circuit breaker for this type of application. Click here to download the complete American Recovery and Reinvestment Act Smart Grid Highlights.

Potential Customers

Utility companies looking to upgrade their circuit protection systems are likely to work with a distributor when purchasing products.  We suggest that our sales representatives work with our distributors to successfully pursue these possible opportunities.
Click here for a complete list of USA Electric Utility Power companies by state. For more details on individual companies, please contact Carling's marketing department at 





The CX-Series circuit breaker features an innovative configuration that allows the breaker to safely handle high amperage and high DC voltage applications in a compact package. By using a magnetic flux boosting terminal configuration, a strong magnetic field is created thus motivating the arc into an enhanced arc chamber.

Permanent magnets combined with the upper and lower arc runner increase the magnetic blow out force and aid in motivating the arc off of the contacts and into the arc chamber. The arc chamber features arc splitter retainers with integrated pressurizing walls, which facilitates heat transfer from the arc providing additional cooling and quick transition into the magnetically induced splitter plates. In turn, the twelve (12) splitter plates attract, segment and cool the arc for full extinction.


  • UL 489, UL 489B Listed and UL 1077
  • TUV Certified IEC/EN 60947-2
  • Temperature stable hydraulic/magnetic overcurrent sensing technology
  • Optional relay trip circuit permitting remote operator system shut down

  • Max rating of 600VDC
  • Perfect fit for 380VDC Applications.
  • UL 489 Listed rating for power distribution equipment utilizing high DC voltage input.
  • UL 489B Listed rating for integration into the combiner box or main disconnect of photovoltaic renewable energy systems.