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Service for Class 1E nuclear qualified
electrical equipment in compliance with 
10CFR50 Appendix B requirements

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Class 1E Nuclear Services

Nuclear Services mobile unit

CBS Nuclear Services provides shop and on-site field servicing of Class 1E safety-related low and medium voltage switchgear and circuit breakers. We also service non-nuclear related circuit breakers and other electrical equipment.

Our trained professional technicians can service a wide range of manufacturers' circuit breakers in our modern shop facilities or on-site at your plant utilizing our mobile field service trailers. We service circuit breakers made by:

  • General Electric
  • ABB/ITE
  • Westinghouse
  • Square D
  • Cutler-Hammer
  • Siemens
  • Allis Chalmers
  • Federal Pacific

Our quality assurance program complies with 10CFR50 Appendix B requirements for servicing Class 1E nuclear qualified electrical equipment.

Utilizing our mobile field service trailers, on-site service and testing is available at your plant:

  • Installation and commissioning
  • Acceptance testing
  • Maintenance testing
  • Preventive and corrective maintenance
  • Retrofills and retrofits
  • Circuit breaker failure analysis

Our trained technicians will evaluate a circuit breaker's condition through appropriate diagnostic testing and inspection, and provide you with options including:

  • Immediate repair
  • Complete refurbishment
  • Upgrading to the latest technologies utilizing vacuum interrupters and new solid-state trip units

We also provide replacement parts from the largest inventory in the U.S.

Refurbishments

Our professional technicians will provide refurbishment/repair services for both Class 1E nuclear-rated and non-IE low- and medium-voltage circuit breakers. We refurbish circuit breakers to each facility's specific requirements and provide a full one-year warranty covering labor and parts.

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  • Incoming test and inspection
  • Disassemble
  • Clean
  • Replate*
  • Paint*
  • Replace damaged or defective components*
  • Address any SIL/SAL/Part 21 issues per customer request*
  • Reassemble
  • Lubricate
  • Final test
  • Final inspection
  • Specialized shipping containers available

*Optional service available per customer's discretion after initial evaluation. Additional charges may apply. 

Retrofits - Upgrades - Life Extension

By applying today's technology and our many years of experience, our retrofit and retrofill programs can extend the life of your breakers. Retrofits convert or upgrade circuit breakers utilizing the latest technologies. By applying today's technology and our many years of experience, our retrofit and retrofill programs can extend the life of your breakers. Retrofits convert or upgrade circuit breakers utilizing the latest technologies. Typically this includes installing new trip units and/or installing new vacuum interrupters and operating mechanisms. Contact us to discuss how we can help you meet your requirements.

TPUEngineered Solutions

As a result of the 2011 Fukushima Daiichi accident, the NRC mandated that all nuclear power plants in the U.S. add an additional level of protection from a complete loss of power to decay heat removal systems via a temporary power system called "FLEX". CBS Nuclear Services designed custom devices for many of our nation's nuclear plants to be used in place of existing circuit breakers that allow for quick connection to the FLEX system's universal generator cables.

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