Why Choose the ABB 1SDA128889R1 E2.3N 2500 Ekip Aware LSIG 4p F HR Air Circuit Breaker?
The ABB 1SDA128889R1 is a high-performance low voltage air circuit breaker (ACB) designed for dependable protection, switching and control of advanced electrical distribution systems. As part of the modern ABB SACE Emax 3 E2.3 series, it delivers intelligent protection technology, high current handling capability and reliable operation for industrial and commercial power networks.
This air circuit breaker is equipped with an Ekip Aware LSIG electronic trip unit, providing comprehensive protection functions including long-time, short-time, instantaneous and ground fault protection. The Emax 3 platform combines advanced sensing, monitoring and digital integration features to support modern energy management requirements.
With a 2500 A rated current, 4-pole fixed configuration and rear horizontal terminals, the ABB 1SDA128889R1 is designed for high-capacity low voltage distribution applications including main switchboards, industrial facilities and critical electrical infrastructure.
Key Advantages
- Advanced ABB SACE Emax 3 air circuit breaker technology for reliable power protection.
- 2500 A rated current suitable for high-capacity low voltage distribution systems.
- Four-pole fixed design for complete circuit switching and protection.
- Integrated Ekip Aware LSIG protection unit for comprehensive fault management.
- E2.3N frame configuration providing high-performance protection capability.
- Rear horizontal terminals enable flexible switchgear installation.
Key Features
- ABB SACE Emax 3 E2.3 series air circuit breaker.
- Ekip Aware LSIG electronic trip unit.
- 2500 A rated uninterrupted current.
- 4-pole configuration.
- Fixed installation version.
- Rear horizontal (HR) terminal connection.
- Long-time, short-time, instantaneous and ground fault protection functions.
- Designed for intelligent electrical distribution and monitoring applications.
Reliable Power Protection for Industrial Distribution
Air circuit breakers such as the ABB Emax 3 series provide essential protection against overloads and short circuits while enabling safe switching and efficient control of electrical distribution systems. Their intelligent electronic trip units allow precise protection settings, diagnostics and improved operational visibility.
The Emax 3 platform is engineered for modern electrical infrastructure where reliability, scalability and digital connectivity are essential. Its advanced protection and monitoring capabilities make it suitable for demanding industrial, commercial and critical power environments.
Typical Applications
- Main low voltage distribution switchboards.
- Industrial power distribution systems.
- Large manufacturing facilities.
- Commercial building electrical infrastructure.
- Energy management and monitoring systems.
- Critical power protection installations.
