AIR CIRCUIT BREAKERS

Explore ABB's comprehensive portfolio of air circuit breakers—from next-generation adaptive technology to proven reliable solutions. Engineered for maximum safety, efficiency,

SMARTER PROTECTION FOR MODERN ELECTRICAL INFRASTRUCTURE

ABB's air circuit breaker portfolio delivers proven protection and innovation. Whether you need next-generation adaptive technology, reliable mid-range performance, or compact heavy-duty solutions, our breakers combine superior safety, efficiency, and ease of use to optimize your electrical distribution system.

EMAX 3

Next-generation air circuit breakers engineered for adaptive, reliable and secure power distribution systems.

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  • Emax 3 features cutting- edge Ekip Aware trip unit technology, enabling seamless field customization and reducing lead times.
  • The innovative design delivers adaptive protection with integrated arc flash mitigation, predictive maintenance capabilities and IEC 62443-4-2 Security Level 2 complaint cybersecurity.

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  • Power Generation, Data Centers
  • Industrial Manufacturing, Renewable Energy

EMAX 2

Proven air circuit breaker platform delivering reliable performance and modular flexibility for diverse applications.

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  • Emax 2 combines proven reliability with modular design, offering field-interchangeable trip units that simplify customization and reduce inventory needs.
  • Standardized accessories and consistent dimensions across frame sizes enable easy installation and maintenance across your electrical distribution network.

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  • Industrial Manufacturing, Medium Voltage Distribution
  • Building Services, Marine Applications

POWER BREAK* II

Compact. heavy-duty insulted case circuit breakers delivering exceptional performance in space-constrained environments.

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  • Power Break 11 breakers offers industry-leading compact design with flush-mounted pump handles and double-insulted ON/OFF buttons for enhanced safety and ease of operation.
  • Superior short-circuit performance ( up to 200,000 amps RMS @ 240V ) combined with modular, drop-in accessories common to all frame sizes simplifies inventory management and installation.

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  • Commercial buildings,Data centers, North American Markets
  • Industrial facilities, HVAC Systems, Switchboard Applications

AIR CIRCUIT BREAKER PORTFOLIO AT A GLANCE

Product  Rated Current Range  Rated Voltage  Breaking Capacity  Poles  Installation  Key Features  Standards Compliance 
SACE Emax 3 630–6300 A  Up to 1150 V  Up to 150 kA  3/4  Fixed / Withdrawable  Cybersecurity by design, integrated arc flash protection, advanced protection, asset management, power quality & management, connectivity  IEC 60947-2 / UL 1066 
SACE Emax 2  630–6300 A  Up to 1150 V*  Up to 150 kA  3/4 Fixed / Withdrawable  Advanced protection, connectivity, power management, predictive maintenance, integrated measurement  IEC 60947-2 / UL 1066 
Power Break II  Up to 4000 A  Up to 600 V  Up to 100 kA  3/4 Fixed / Draw-out Advanced protection, metering, communications, arc flash protection  UL 1066 / ANSI 

FREQUENTLY ASKED QUESTIONS

Emax 3 is the next-generation platform featuring Ekip Aware trip unit technology with extensive field customization, integrated arc flash protection, and industry-first IEC 62443-4-2 Security Level 2 cybersecurity compliance. Emax 2 remains a proven, cost-effective solution with proven reliability and modular flexibility. Emax 3 offers backward compatibility with Emax 2 for seamless upgrades.

Power Break II is ideal for North American markets requiring UL-489 compliance and compact design in HVAC, commercial, and data center applications. Emax breakers serve broader global industrial and utility markets. Choose based on your geographic market, standards requirements, and space constraints.

Emax 3 includes integrated arc flash technology supporting up to 12 sensors per breaker to reduce incident energy to less than 8 cal/cm² @ 480V up to 100kA bolted fault, with clearing times under 40ms. A remote racking device enables operation from up to 10 meters away, significantly reducing personnel risk during maintenance.