Aimed at large facilities with high power demands, including data centers, advanced manufacturing sites and critical infrastructure including hospitals and airports, the innovative Emax 3 is designed to address increased concerns about grid stability, cybersecurity, and the surging power needs of Artificial Intelligence (AI) in data centers.
- The new SACE Emax 3 air circuit breaker will improve energy security and resilience of power systems in critical infrastructure – including data centers, factories, hospitals, and airports
- Cutting-edge breaker includes sensing, intelligence and advanced algorithms to provide predictive maintenance
- Emax 3 is world’s first cybersecurity SL2 certified air circuit breaker
The successor to the industry-leading Emax 2 smart circuit breaker, the Emax 3 introduces cutting-edge technology to minimize the risk of power outages. Featuring the industry’s most accurate power sensors and data analytics, the Emax 3 collects and analyses real-time data from the electrical system, including power usage, system health, and environmental conditions such as temperature. This information is shared remotely or on the Emax 3 touchscreen, offering users real-time insights, warnings, and recommendations for precise maintenance.
Emax 3 is the world’s first air circuit breaker with Security Level 2 IEC 62443 cybersecurity certification. It is also the first with a fully integrated arc flash detection system to enhance safety and reliability.
"Critical infrastructure needs resilient electrical systems. As demand for advanced electrification solutions continues to grow, the new SACE Emax 3 will help customers stay ahead of changing power requirements and protect business-critical uptime,” said Massimiliano Cifalitti, Smart Power President, ABB Electrification. “Emax 3 is a breakthrough for energy resilience, helping solve some of the leading causes of power outages. Its built-in intelligence helps customers make their power management and maintenance proactive and predictive.”
ABB’s SACE-brand air circuit breakers are recognised for their reliability and performance, with millions installed worldwide protecting buildings and critical facilities.

Lara Cortinovis, Head of Distribution & Energy Management, ABB Electrification, said: “Power outages can now be a million-dollar problem, with customers telling us they are concerned with grid instability, human error and cybersecurity vulnerabilities. Solutions to improve on-site resilience are seen as critical. ABB innovations like Emax 3 will be at the heart of solutions to make critical infrastructure more secure and reliable.”
Uptime Intelligence’s 2025 survey-based Annual Outages Analysis indicates that power failures account for more than half of digital infrastructure outages; that more than half of significant outages cost more than $100,000 and one in five data center operators say their most recent significant outage cost more than $1million (Source: Uptime Intelligence).
