ACB
Air circuit breakers deliver high-current protection and switching for main low-voltage power distribution systems in industrial facilities.
Overview
© ABBDescription
ABB SACE Air Circuit Breakers, comprising Formula Air, Emax 2 and Emax 3 series, deliver reliable electrical protection, operational safety and efficient power distribution. Designed for industrial, commercial and infrastructure applications, these ACBs provide advanced protection against overloads, short circuits and earth faults. With a wide range of current ratings, frame sizes and fixed or withdrawable configurations, they offer flexibility for diverse low-voltage distribution requirements. Advanced electronic trip units, monitoring capabilities and digital connectivity support reliable operation and effective power management.
Key Benefits
- Reliable Electrical Protection: Advanced electronic protection against overloads, short circuits and earth faults helps safeguard electrical equipment and distribution networks.
- High Breaking Capacity: Multiple breaking-capacity options provide flexibility in selecting circuit breakers according to the prospective short-circuit levels of the installation.
- Intelligent Protection and Monitoring: Electronic trip units provide configurable protection, electrical measurements, diagnostics and event monitoring, depending on the selected product family and configuration.
- Enhanced Operational Safety: Optional electrical and mechanical interlocks, protection accessories and advanced arc-flash protection features help improve operational safety.
- Digital Connectivity: Communication capabilities enable integration with PLC, SCADA, building management and energy monitoring systems.
Specifications
- Formula Air
- Frame sizesFA1, FA2, FA4Rated current range630–4000AMaximum breaking capacity (Icu)50kARated voltageUp to 440VNumber of poles3P / 4P
- SACE Emax 2
- Frame sizesE1.2, E2.2, E4.2, E6.2Rated current range400–6300AMaximum breaking capacity (Icu)200kARated voltageUp to 1150VNumber of poles3P / 4P
- SACE Emax 3
- Frame sizesE1.3, E2.3, E4.3, E6.3Rated current range250–6300AMaximum breaking capacity (Icu)150kARated voltageUp to 1150VNumber of poles3P / 4P
Variant
- Rated service voltage (Ue)
- 440V
- Rated insulation voltage (Ui)
- 1000V
- Impulse withstand voltage (Uimp)
- 12kV
- Frequency
- 50/60Hz
- Rated current (maximum)
- FA11600AFA22000AFA44000A
- Icu at 400–415V
- FA142kAFA2, FA450kA
- Icu at 440V
- FA142kAFA2, FA450kA
- Ics
- 100% Icu
- Icw at 440V (1 sec)
- FA142kAFA2, FA450kA
- Icw (3 sec)
- FA1, FA224kAFA455kA
- Icm at 440V
- FA188kA peakFA2, FA4105kA peak
- Utilization category
- B
- Number of poles
- 3P / 4P
- Mounting
- Fixed / Withdrawable
Videos
ABB SACE EMAX 3