Why Choose the ABB 1SDA128891R1 E2.3H 2500 Ekip Aware LSIG 4p F HR Air Circuit Breaker?
The ABB 1SDA128891R1 is a high-performance low voltage air circuit breaker (ACB) designed for reliable protection, switching and control of advanced electrical distribution systems. As part of the innovative ABB SACE Emax 3 E2.3 series, it combines intelligent protection technology with robust construction to support demanding industrial and commercial power applications.
This circuit breaker features an advanced Ekip Aware LSIG electronic trip unit, providing comprehensive protection functions including long-time, short-time, instantaneous and ground fault protection. The ABB Emax 3 platform delivers enhanced monitoring, diagnostics and digital integration capabilities for modern electrical infrastructure.
With a 2500 A rated current, 4-pole fixed configuration, high-performance E2.3H frame and rear horizontal terminals, the ABB 1SDA128891R1 is suitable for main switchboards, industrial distribution systems and critical power installations requiring dependable circuit protection.
Key Advantages
- Advanced ABB SACE Emax 3 air circuit breaker technology for dependable low voltage protection.
- 2500 A rated current suitable for high-capacity electrical distribution applications.
- Four-pole fixed design for complete system switching and protection.
- Integrated Ekip Aware LSIG protection unit for comprehensive fault management.
- E2.3H high breaking capacity configuration for demanding installations.
- Rear horizontal terminals enable flexible switchgear integration.
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 power distribution and energy management systems.
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 management of low voltage electrical systems. Their intelligent electronic trip units allow accurate protection settings, diagnostics and improved operational visibility.
The Emax 3 platform is engineered for future-ready electrical infrastructure, combining adaptive protection, communication capability and advanced power management functions to support reliable operation in demanding 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.
