Why Choose the ABB 1SDA125654R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125654R1 is a high-performance four-pole withdrawable air circuit-breaker moving part from the ABB SACE Emax 3 platform, configured as an E2.3S 800 Ekip Aware LSI unit for reliable protection and switching in low-voltage electrical distribution systems.
Designed for demanding power distribution applications, the Emax 3 E2.3S platform combines high current-carrying capability with advanced electronic protection. The integrated Ekip Aware LSI protection unit provides long-time, short-time and instantaneous protection functions, helping protect electrical installations against overload and short-circuit conditions.
With a rated permanent current of 800 A and a four-pole withdrawable construction, the ABB 1SDA125654R1 is suitable for industrial switchboards, main distribution systems and other high-current electrical installations. Its moving-part configuration is designed for use with a compatible Emax 3 fixed part, supporting practical installation, inspection and maintenance.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit-breaker moving part for low-voltage power distribution.
- 800 A rated permanent current for high-load electrical distribution applications.
- Four-pole withdrawable construction for flexible installation and maintenance.
- Ekip Aware LSI electronic protection with long-time, short-time and instantaneous protection functions.
- 85 kA Icu at 440 V AC short-circuit breaking capacity.
- Suitable for industrial switchboards, main distribution and high-current feeder protection.
Key Features
- ABB SACE Emax 3 E2.3S series.
- E2.3S 800 Ekip Aware LSI 4p WMP configuration.
- 800 A rated permanent current.
- 85 kA rated short-circuit breaking capacity at 440 V AC.
- 66 kA rated short-time withstand current for 1 second.
- Long-time, short-time and instantaneous electronic protection.
- Withdrawable moving-part construction for use with a compatible fixed part.
- Four-pole configuration with auxiliary contact capability.
Reliable Protection for High-Current Power Distribution
Air circuit-breakers are used in low-voltage electrical distribution systems to protect high-current circuits against overloads and short-circuit conditions. The ABB Emax 3 E2.3S platform is designed for applications where dependable protection, switching capability and maintainability are essential.
The Ekip Aware LSI configuration combines long-time overload, short-time and instantaneous short-circuit protection functions. The withdrawable moving-part design allows the breaker assembly to be installed within a compatible fixed installation, supporting convenient servicing and maintenance of electrical distribution equipment.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial electrical distribution systems.
- Commercial and infrastructure power distribution.
- High-current feeder and incomer protection.
- Manufacturing plants and industrial facilities.
- Electrical installations requiring withdrawable circuit-breaker technology.
