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Enclosed Circuit Breakers - NEMA 1

ABB’s enclosed circuit breakers offer all the advantages and accessories of a circuit breaker packaged in an enclosure for nearly any application requiring a means of disconnect.

Ideal for a variety of locations including general purpose or rainproof surface mounting. 100% rated products are available in configurations ranging from 15 to 1200 A to meet the needs of many applications.

Tmax® XT
The SACE®Tmax® XT molded case circuit breaker (MCCB) range helps ensure extreme performance and protection features up to 1200 amps. Tmax XT MCCBs are designed to maximize ease of use, integration and connectivity, and are built to deliver safety, reliability and quality.

ABB's FORMULA molded case circuit breaker line offers simplicity and quality in some of the smallest dimensions available.

Q-Line Miniature Circuit Breakers
15 to 100A. THQB and THQC types. Available in bolt-on and Cable-in Cable-out (lug-lug) versions.

Thermal Magnetic E150
15 to 150A. Our industrial thermal-magnetic E150 breakers provide a proven, cost-effective solution.

Features and benefits

  • UL/cUL certified
  • Suitable for use as service equipment
  • Short circuit ratings equal to the installed breaker
  • Complete set of field installable accessories