WHY SACE EMAX 3?
SACE Emax 3 is ABB’s next-generation low-voltage air circuit breaker, engineered to support secure, resilient, and future-ready power infrastructure.
Designed for adaptability and long-term operational continuity, Emax 3 combines advanced protection, intelligent power management, and scalable connectivity to help organizations manage evolving energy demands with confidence.
Built to maximize uptime in critical environments, Emax 3 employs comprehensive sensing capabilities, proactive asset management, and cybersecurity by design — helping protect people, assets, and data while preparing infrastructure for what’s next.
KEY FEATURES
System Integration
- System Integration
- Power Quality
- Asset Management
- Power Management
- Cybersecurity
- Expanded Protection
FUTURE-READY SYSTEM INTEGRATION STARTS WITH SACE EMAX 3
<p>System integration challenges slow down modernization. ABB SACE Emax 3 bridges old and new with full backward compatibility, advanced communication architecture, and flexible upgrades. It empowers you to build intelligent electrical systems that grow with your needs while protecting existing investments.</p> <p>Explore advanced integration capabilities that bridge legacy and digital systems, ensuring seamless evolution of your electrical infrastructure without compromising existing investments. </p> <p> </p> <p> </p>
SACE Emax 3's Ekip Aware trip unit evolves with your electrical installation requirements with a comprehensive set of on demand digital upgrades to:
- Configure your tailor-made solution with no compromises
- Scale from basic to advanced system protections
- Add measurement capabilities and power quality moniotring tools
- Adjust rated current when it's needed
Connect every device to your management system effortlessly. SACE Emax 3 supports multiple protocols for seamless integration:
- Modbus RTU, and PROFIBUS for standard systems
- Modbus TCP supporting daisy chain connection with 2-wires Ethernet for flexible deployment
- Modbus TCP Security Protocol featuring encryption, authentications and data integrity
- IEC61850 to create logics like selectivity and interlocking between LV and MV and supporting redundant communication paths for critical applications
- Profinet and Ethernet IP for common industrial installations
Protect your investment and make your installation designed around SACE Emax2 evolve with Emax 3 avoiding re-certification costs.
- Emax 3 Moving Part compatibility with Emax 2 Fixed Part
- Same installation requirements
- Easy import and export of Trip Unit settings
- Seamless integration in an existing supervision system
SACE Emax 3 redefines the user experience thanks to a sophisticated ecosystem
that combines customization, advanced monitoring, and intuitive
design tools.
- 3.5" touch screen colour display with simplified menu
- EPiC mobile app for on-the-go monitoring and control
- Ekip Connect software for advanced protection settings and custom logics design
- System update available for any user
- Bluetooth and NFC wireless connectivity
OPTIMISED POWER QUALITY
<p>Power quality issues disrupt operations and damage equipment. ABB SACE Emax 3 delivers precise measurement and real-time analysis to identify disturbances early, optimize system performance, and protect your infrastructure. With 0.5% measurement accuracy and comprehensive network analysis, you maintain control of your electrical environment while reducing losses and improving efficiency.</p> <p>Explore intelligent monitoring capabilities that deliver precise power quality analysis, enabling early detection of disturbances and enhanced protection of equipment and operations </p>
SACE Emax 3 with Ekip Aware delivers embedded metering for real-time monitoring of energy consumption and power quality, optimizing system performance.
SACE Emax 3 guarantees extremely accurate measurements, reaching Class 0.5 for Active Power and Energy, meeting the IEC 61557-12 Standard, with no need for external meters or additional sensors.
Gain complete visibility into your electrical system's health. SACE Emax 3's embedded network analyzer captures and analyzes harmonics, and voltage and frequency fluctuations in real-time.
An effective root cause analysis can be performed leveraging on EPiC Mobile app and Ekip Connect software to identify power quality problems and prevent equipment damages.
The Data Logger feature of Emax 3 is designed to capture and record waveform data associated with trigger events. This functionality is crucial for investigating the root cause of an event to determine any potential issues with the system and for monitoring sensitive loads.
Two solutions are available:
- a standard Data Logger version available on any Ekip Aware trip units
- Data Logger Pro upgrade for long term analysis with SD card and additional customization options
SIMPLIFY ASSET MANAGEMENT
<p>ABB SACE Emax 3 air circuit breaker makes managing your electrical assets easy, safe, and efficient. With real-time monitoring, intelligent diagnostics, and predictive maintenance, it helps you reduce downtime, extend equipment life, and make informed decisions - keeping your operations reliable while saving time and resources.</p> <p>Explore the advanced features that simplify asset management, enhance visibility, and optimize performance across your electrical systems</p>
Keeping electrical systems running reliably requires early fault detection. SACE Emax 3's Sense opening, closing, and undervoltage coils plus Motor Sense enabler provide:
- Real-time key parameter tracking – Supply voltage, operation count, and more with live status feedback
- Redundancy – Multiple coils combination for critical protection
- Remote control – Managed via communication protocols
Track equipment's health with real-time data on electrical parameters and operating conditions. SACE Emax 3 detects anomalies early to prevent failures and optimize maintenance schedules.
Comprehensive diagnostics on Ekip Aware trip unit cover:
- Poles and power terminals
- Trip coil
- Operating mechanism
- Trip unit
- Coils and motor
- Communication modules
- Current sensors
Troubleshooting support available via Ekip Connect software.
SACE Emax 3's advanced algorithm continuously monitors circuit breaker performance to predict maintenance needs. By analyzing real-time temperature and dynamic measurements, the system optimizes maintenance schedules and prevents unexpected failures.
Key data tracked:
- Circuit breaker health status
- Next maintenance date
Accessible via:
- Ekip Aware trip unit
- EPiC mobile app and Ekip Connect software
- Communication protocols
Data-driven temperature monitoring at device and system level preserves plant reliability. SACE Emax 3 adapts to different installation requirements with flexible solutions:
- Internal temperature sensors – Evaluate maintenance and protection strategies
- Distributed wireless sensors – Monitor busbars, ambient temperature, and humidity with Bluetooth mesh communication to circuit breakers; no external concentrator needed
- Ekip Temperature 4T – Cartridge module to input signals from 4 temperature probes
SIMPLIFY COMPLEXITY
<p>Complex electrical systems require intelligent management. ABB SACE Emax 3 delivers powerful tools to automate protection logic, implement custom strategies, and manage power sources with precision. With distributed intelligence and intuitive configuration, you reduce complexity, lower operating costs, and optimize performance across your entire electrical infrastructure. </p> <p>Explore smart control capabilities that simplify complex power systems, enabling automated protection strategies, optimized energy distribution, and improved operational efficiency.</p>
Custom logic: SACE Emax 3 enables flexible programming of automation, protection, and power source management leveraging the Ekip Aware trip unit and Custom Logic tool.Hosted on Ekip Connect software, Custom Logic provides an intuitive graphical interface for building automation logics without requiring an external controller.Choose from pre-built Automatic Transfer Switch templates or design custom logics from scratch to tailor protection and control to your specific installation needs.
SECURE BY DESIGN WITH ROLE-BASED ACCESS
<p>In today’s connected world, cybersecurity can’t be an afterthought. SACE Emax 3 is the first low-voltage air circuit breaker with Security Level Capability 2 according to IEC 62443-4-2, delivering defense-in-depth protection for your power infrastructure.</p> <p>Explore the advanced cybersecurity features that protect your power infrastructure, ensuring secure operation, controlled access, and resilient performance across connected environments. </p> <p> </p> <p> </p>
Define who can do what to minimize misconfiguration, unauthorized changes, and insider threats. Designed to meet IEC 62443-4-2 SL-C 2 certification requirements, SACE Emax 3's role-based access control protects against unauthorized access by restricting actions to user responsibilities:
- Owner, Admin, Engineer, Operator, Viewer roles
- Every access and violation recorded for forensic analysis and compliance
- Protection for trip unit parameters and communication protocols
- Managed via ABB account system through Ekip Connect software
SACE Emax 3 builds security from the ground up with hardware protections that ensure only authentic components and firmware operate. This prevents tampering and unauthorized access, enabling safe and reliable power distribution in connected systems.
SACE Emax 3 supports digitally signed firmware updates with anti-rollback protection, preventing:
- Unauthorized firmware installation
- Downgrade attacks using older vulnerable firmware versions
ADVANCED SAFETY, EXPANDED PROTECTION
<p>SACE Emax 3 Air Circuit Breaker offers comprehensive protection for both people and assets across a wide range of operational scenarios. Its advanced safety features are designed to minimize risks from arc flash, mechanical operation, and human error, ensuring peace of mind in modern, connected power environments.</p> <p>Explore the advanced capabilities that make SACE Emax 3 a reliable choice for protecting people and assets in modern power systems. </p>
Integrated arc-flash protection enhances safety for operators and equipment. With sub-40ms clearing time, Emax 3 cuts arc-flash energy by 50% and reduces operator PPE requirements.
No external relays means 30% savings on installation costs, thanks to
- Ekip Aware intelligence
- Ekip Arc-Flash 6F modules
- Up to 12 Light-Sense detectors per circuit breaker
The Remote Racking Device enables safe breaker racking while protecting operators from arc-flash hazards. Two solutions are available:
- Integrated RRD-E – Industry-leading integrated solution with wireless control via EPiC mobile app for SACE Emax E4.3 and E6.3
- External RRD – Operate from up to 10 meters away via direct controller connection
SACE Emax 3 delivers an advanced MDGF solution for multi-sourced electrical systems with solidly grounded neutrals. It automatically isolates faults while reducing installation time and space. It leverages on:
- Logic managed via Link communication
- Ekip Aware intelligence and measurement capabilities to eliminate external current transformers
SACE Emax 3's RELT technology limits energy during short-circuit events, including arc-flash incidents. Faster than instantaneous protection, RELT can be enabled and monitored directly on the Ekip Aware trip unit or via EPiC mobile app, with clear HMI visualization of active protection status.
SACE Emax 3's enhanced mechanical security protects against unauthorized breaker operations. Double keylock and padlock solutions enable interlock logics across multiple devices, while redundancy for all frame sizes provides additional safety layers.
SELECTION TOOLS
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Emax 3 | ABB e-Configure (Devices)
Select, configure, and order Emax 3 directly from ABB e-Configure Devices
FREQUENTLY ASKED QUESTIONS
Yes. SACE Emax 3 shares the same dimensions, mounting points, auxiliary connections, and minimum enclosure requirements as Emax 2. Moving parts of Emax 3 are compatible with existing Emax 2 fixed parts and cradles, making brownfield upgrades straightforward.
SACE Emax 3 is the first air circuit breaker in the market to comply with IEC 62443-4-2 Security Level 2 (SL2). This covers secure firmware updates, role-based access management, anti-tampering storage, and authenticated Bluetooth and NFC connections.
Ekip Aware is the digital trip unit platform of SACE Emax 3. It supports field upgrades including short time delay (S) and ground fault protection (G) functions, digital rating plugs for current adjustment, and communication features — all without hardware replacement. Upgrades can be purchased and activated via the ABB Ability™ Marketplace.
SACE Emax 3 uses an internal network of sensors to continuously monitor key metrics such as temperature and accessory health, enabling condition-based maintenance instead of fixed time schedules. This proactive approach minimizes unexpected failures, reduces maintenance costs, and optimizes asset uptime across your electrical distribution system
Yes. SACE Emax 3 offers integrated arc flash protection with support for up to 12 sensors per circuit breaker. It reduces incident energy to less than 8 cal/cm² at 480 V up to 100 kA bolted fault and clearing time to less than 40 ms.