Why Choose the ABB 1SDA128840R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128840R1 is a high-performance SACE Emax 3 air circuit breaker designed for reliable protection, control and monitoring of low-voltage electrical distribution systems. As part of the advanced ABB Emax 3 circuit breaker series, it provides intelligent protection solutions for industrial plants, infrastructure projects and critical power applications.
This breaker features an advanced Ekip Aware LSIG electronic trip unit, delivering comprehensive protection functions including long-time, short-time, instantaneous and earth fault protection. Its fixed three-pole construction with rear horizontal connections provides a practical solution for high-capacity switchboards and electrical distribution equipment.
With a rated current of 3200 A, the ABB 1SDA128840R1 is suitable for demanding electrical installations requiring dependable fault protection and advanced system monitoring. The Emax 3 platform combines digital technology, flexible communication and intelligent diagnostics to improve operational reliability.
Key Advantages
- Advanced ABB SACE Emax 3 air circuit breaker for modern power distribution.
- 3200 A rated current for high-capacity electrical systems.
- Integrated Ekip Aware LSIG protection for complete circuit monitoring.
- Fixed three-pole configuration for efficient installation.
- Reliable protection against overload, short circuit and earth fault conditions.
- Digital monitoring and intelligent energy management capabilities.
Key Features
- ABB Emax 3 air circuit breaker series.
- E4.3S frame size configuration.
- 3200 A rated current.
- Ekip Aware LSIG electronic release.
- Three-pole fixed version.
- Rear horizontal terminal connection arrangement.
- Advanced LSIG protection functions.
- Designed for industrial and commercial low-voltage distribution systems.
Advanced Protection for Industrial Power Systems
Air circuit breakers such as the ABB Emax 3 range provide dependable protection by continuously monitoring electrical conditions and disconnecting circuits during abnormal operating events. This helps protect equipment, maintain system availability and improve electrical safety.
The Emax 3 series combines ABB’s proven circuit breaker technology with intelligent Ekip Aware protection units, enabling enhanced diagnostics, communication capabilities and flexible integration into modern energy management systems.
Typical Applications
- Industrial power distribution systems.
- Large electrical switchboards and panels.
- Transformer and generator protection.
- Commercial and infrastructure power installations.
- Energy management and monitoring systems.
- Critical electrical protection applications.
