National Breaker Services Engineers, Designs and Manufactures Utility Grade Only - Medium Voltage Switchgear and Iso Phase Bus for Power Plants and Substations. We are constantly improving operability, ruggedness, and safety. Our state-of-the-art equipment should provide maintenance-free to maintenance lite service for life.We remain at the forefront of switchgear and switchgear life extension with our uniquely designed Citadel breaker. Now America's most rugged element, the KERI & KEMA tested (C 37.09 & C 37.013) Citadel breaker goes to 5,000 amps (no fans) @ 63kA, 15kV & 3,000 amps @ 44kA, 38kV. Originally developed as a fixed element to create a full line of legacy roll-in replacements – there are now roll-in Citadels for GE Magneblast, Westinghouse, ITE, Allis-Chalmers, Siemens, Federal, and McGraw.Upon advancing to a full draw-out design the Citadel with its one-high cell can retrofit into almost any legacy make & model of switchgear your System might have. The Citadel can be provided as dog houses, free-standing specialty switchgear, outdoor lineups for any configuration including EPC house construction. From solar to fossil to hydro to nuclear to especially industrial. If you need exceptionally rugged Utility Grade Only switchgear – Citadel is the answer.Our turnkey installation, start-up, and emergency services provide our clients with a worry-free new &/or replacement process that saves tons of time and money. If your switchgear bidders list includes preferred independent OEMS – The Citadel can be provided to them for custom switchgear to your specifications.To learn more, please visit our website: http://www.nationalbreaker.com