Why Choose the ABB 1SDA125669R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125669R1 is a high-performance four-pole withdrawable air circuit-breaker moving part from the ABB SACE Emax 3 platform, configured as an E2.3S 1000 Ekip Aware LSI unit for reliable protection and switching in demanding low-voltage electrical distribution systems.
Designed for high-current power distribution applications, the Emax 3 E2.3S platform combines high short-circuit performance 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 overloads and short-circuit conditions.
With a rated permanent current of 1000 A, a four-pole configuration and an 85 kA short-circuit breaking capacity at 440 V AC, the ABB 1SDA125669R1 is suitable for industrial switchboards, main distribution systems and high-current feeder applications. Its withdrawable moving-part construction supports convenient installation, inspection and maintenance within a compatible Emax 3 fixed installation.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit-breaker moving part for demanding low-voltage power distribution.
- 1000 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.
- 66 kA Icw for 1 s short-time withstand current for demanding distribution applications.
Key Features
- ABB SACE Emax 3 E2.3S series.
- E2.3S 1000 Ekip Aware LSI 4p WMP configuration.
- 1000 A rated permanent current.
- 85 kA rated short-circuit breaking capacity at 440 V AC.
- 66 kA rated short-time withstand current for 1 s.
- 400–1000 A long-time overload protection adjustment range.
- 1500–15000 A instantaneous short-circuit protection adjustment range.
- Four-pole withdrawable moving-part construction with four auxiliary contacts.
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 installations where high breaking performance, dependable protection 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 practical 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 high breaking capacity and withdrawable circuit-breaker technology.
