SACE EMAX 2
From traditional circuit breaker to real power manager, SACE Emax 2 protects, connects and manages your low voltage electrical installation from 400 A up to 6300 A.
FROM TRADITIONAL CIRCUIT BREAKERS TO REAL POWER MANAGER
<p>SACE Emax 2 air circuit breakers are designed to go beyond traditional protection, actively managing the dynamics of low voltage electrical installations. Available in four frame sizes from 400 A up to 6300 A, Emax 2 integrates advanced protection, precise energy measurement, embedded power management functions and full digital connectivity into a single device. </p>
SACE Emax 2 IEC
For applications in accordance with IEC 60947 Standars.
The SACE Emax 2 IEC range delivers advanced protection and active power management for low voltage installations worldwide, in compliance with IEC 60947-2. Four frame sizes — E1.2, E2.2, E4.2 and E6.2 — cover from 400 A up to 6300 A. Ekip electronic trip units provide Class 1 energy measurement accuracy, advanced protection and embedded power management. Cloud connectivity via ABB Ability™ Energy and Asset Manager enables real-time remote monitoring and predictive maintenance.
Standards: IEC 60947-2 · IEC 61557-12 (Class 1) · UKCA · CCC · GOST
Current range: 400 A – 6300 A
Frame sizes: E1.2 (up to 1600 A) · E2.2 (up to 2500 A) · E4.2 (up to 4000 A) · E6.2 (up to 6300 A)
SACE Emax 2 UL
For applications in accordance with UL 1066 Standars
The SACE Emax 2 UL range is certified to ANSI C37.13, C37.16, C37.17 and C37.50 standards and UL 1066, enabling use in UL 1558 switchgear, UL 891 switchboards and CSA C22.2 No. 31 assemblies. Four frame sizes deliver from 400 A up to 6000 A with interrupt ratings up to 100 kA at 480 V. Triple marking (IEC, UL, CCC) is available, simplifying specification for global projects.
Standards: ANSI C37.13/16/17/50 · UL 1066 · CSA C22.2 No. 31 · CCC · GOST
Current range: 400 A – 6000 A
Frame sizes: E1.2 · E2.2 · E4.2 · E6.2
KEY FEATURES
<p>SACE Emax 2 goes beyond circuit protection — it actively manages, monitors and optimizes every aspect of your low voltage installation, from commissioning to daily operation.</p>
Performance
<p>Four sizes available, ensuring high performances in compact dimensions. Triple marking certification (IEC, UL, CCC). Certified for Class 1 active energy measurement in compliance with the IEC61557-12 standard.</p>Control
<p>The All-In-One innovation able to manage any conditions of the grid thanks to advanced functions such as Load Shedding, Power Controller, ATS, Interface Protection, Synchrocheck logics, Adaptive Protection.</p>Connectivity
<p>Perfect integration into all automation and energy management systems thanks to the eight communication protocols supported. Easy connection to the cloud computing platform ABB AbilityTM Electrical Distribution Control System. Remote connection through the embedded Bluetooth Low Energy technology.</p>Ease of use
<p>Easy and safe operations and maintenance. Plug & play accessorizing. User friendly commissioning tools. Platform able to evolve during the lifecycle through the ABB Ability MarketplaceTM offering.</p>KEY TECHNICAL SPECIFICATIONS
SACE Emax 2 is engineered to meet the most demanding performance requirements — from standard industrial buildings to complex microgrids and naval platforms.
Current range 400–6300 A
<p>Four frame sizes: E1.2 · E2.2 · E4.2 · E6.2 (IEC version) </p>Breaking capacity (max) 200 kA
<p>E6.2 frame — IEC version at 415/440 V</p>Short-time withstand current 100 kA (1s)
<p>E4.2 and E6.2 frames under IEC standards </p>Energy measurement accuracy Class 1
<p>Certified per IEC 61557-12; current 0.5%, voltage 0.5%, power 1%, energy 1% </p>Operating temperature –25°C to +70°C
<p>Full performance range — Emax 2 with Ekip DIP (IEC 60947-2) </p>Communication protocols 7+
<p>IEC 61850 · Modbus TCP · Modbus RS-485 · Profibus · Profinet · EtherNet/IP™ · DeviceNet™</p>FREQUENTLY ASKED QUESTIONS
The SACE Emax 2 range is available in four frame sizes: E1.2 (1,600A with 66kA breaking capacity), E2.2 (2,500A with 100kA), E4.2 (4,000A with 150kA), and E6.2 (6,300A with 200kA). Each frame is optimized in width to minimize switchgear footprint, offering up to 30% size reduction compared to equivalent devices
SACE Emax 2 supports up to 8 embedded communication protocols, including IEC 61850 (the first LV circuit breaker with this standard integrated), Modbus RTU/TCP, Profibus DP, Profinet, DeviceNet, and Ethernet/IP. Multiple protocols can run simultaneously, and redundant communication is supported by installing two modules of the same protocol
The Power Controller continuously measures actual power consumption and keeps it below a user-defined limit. When consumption exceeds the threshold, it automatically disconnects non-priority loads and reconnects them when levels return to normal. This can reduce peak power demand by up to 15%, significantly lowering energy management costs without requiring external systems
Emax 2 features interchangeable trip units, field-installable accessories from the front, predictive maintenance indicators, and contact wear monitoring. All models share common terminal boxes and wiring setups, allowing for easy, rapid upgrades.