Why Choose the ABB 1SDA128919R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128919R1 is a high-performance SACE Emax 3 low-voltage air circuit breaker designed for reliable protection, switching and monitoring in demanding industrial and power distribution systems. It is an E6.3V/f 6300 Ekip Aware LSIG 4-pole fixed circuit breaker with horizontal rear terminals, providing advanced electronic protection for high-current electrical installations.
As part of the advanced ABB Emax 3 air circuit breaker series, the 1SDA128919R1 combines robust switching capability with intelligent Ekip Aware electronic protection. The LSIG protection configuration provides long-time, short-time, instantaneous and earth-fault protection functions for comprehensive circuit protection and improved operational reliability.
With a rated continuous current of 6300 A and a four-pole fixed construction, this breaker is designed for the highest-capacity low-voltage distribution applications. The E6.3V high-performance frame provides enhanced fault interruption capability for critical industrial installations, infrastructure projects and large-scale electrical systems.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for critical power distribution applications.
- 6300 A rated continuous current for large-scale electrical installations.
- Four-pole fixed configuration for complete circuit switching and protection.
- Ekip Aware LSIG electronic release with advanced protection functions.
- High-performance breaking capability for demanding industrial environments.
- Horizontal rear terminal arrangement for switchgear integration.
Key Features
- ABB SACE Emax 3 E6.3V/f series.
- 6300 A rated continuous current.
- Ekip Aware LSIG protection unit.
- Four-pole fixed breaker design.
- Long-time, short-time, instantaneous and earth-fault protection.
- E6.3V high-performance breaking version.
- Horizontal rear connection terminals.
- Designed for advanced low-voltage power distribution systems.
Advanced Protection for High-Capacity Electrical Systems
Air circuit breakers such as the ABB Emax 3 protect electrical distribution networks by detecting overload and fault conditions before safely interrupting current flow. The Ekip Aware LSIG electronic release provides configurable protection settings to support reliable operation and continuity in complex power systems.
The Emax 3 platform combines intelligent monitoring, advanced protection technology and flexible integration options for modern electrical infrastructure. The 1SDA128919R1 is designed for engineers requiring a high-current breaker solution for industrial plants, utility installations and critical power distribution applications.
Typical Applications
- Large industrial low-voltage distribution switchboards.
- High-current feeder protection systems.
- Power generation and transformer distribution applications.
- Data centres and critical infrastructure installations.
- Heavy manufacturing and industrial facilities.
- Advanced electrical switchgear assemblies.
