Why Choose the ABB 1SDA124923R1 SACE Emax 3 E4.3S 4000 Air Circuit Breaker?
The ABB 1SDA124923R1 is a high-performance air circuit breaker (ACB) from the advanced ABB SACE Emax 3 series, designed to provide reliable protection, switching and control for high-power low-voltage electrical distribution systems. Configured as an E4.3S 4000 circuit breaker, it is engineered for demanding industrial, infrastructure and energy applications requiring robust protection and dependable operational performance.
This circuit breaker combines a heavy-duty mechanical design with advanced electronic protection technology through the integrated Ekip Aware LSI trip unit. The SACE Emax 3 platform provides intelligent protection, monitoring capabilities and flexible installation solutions for modern electrical installations.
With a rated current of 4000 A, a three-pole configuration and a rated ultimate short-circuit breaking capacity of 85 kA at 415 V AC, the ABB 1SDA124923R1 is suitable for protecting high-capacity low-voltage distribution networks, industrial switchboards and critical power systems. The fixed version with rear horizontal terminals enables integration into compatible switchgear assemblies.
Key Advantages
- ABB SACE Emax 3 air circuit breaker designed for high-power low-voltage protection applications.
- 4000 A rated current for demanding electrical distribution systems.
- 85 kA breaking capacity at 415 V AC for reliable short-circuit protection.
- Integrated Ekip Aware LSI trip unit for comprehensive electrical protection.
- Fixed mounting configuration for permanent switchgear installation.
- Rear horizontal terminals for flexible connection arrangements.
Key Features
- ABB SACE Emax 3 series air circuit breaker.
- E4.3S 4000 frame configuration.
- 3-pole circuit breaker design.
- 4000 A rated uninterrupted current (In).
- 85 kA Icu breaking capacity at 415 V AC.
- Ekip Aware LSI trip unit providing long-time, short-time and instantaneous protection functions.
- Fixed version for permanent installation.
- Rear horizontal terminals for electrical connection.
Reliable Protection for Modern Electrical Distribution Systems
Air circuit breakers such as the ABB SACE Emax 3 protect electrical installations by safely interrupting fault currents and providing dependable switching performance. Advanced electronic trip units continuously monitor electrical conditions and help ensure reliable protection of connected equipment and power networks.
The SACE Emax 3 platform is designed for modern energy distribution applications where safety, efficiency and intelligent system integration are essential. Its advanced trip technology and robust construction support the requirements of large industrial facilities, infrastructure projects and high-capacity electrical installations.
Typical Applications
- High-capacity industrial power distribution systems.
- Main switchboards and electrical power centres.
- Large manufacturing and processing facilities.
- Infrastructure and energy distribution projects.
- Critical power protection installations.
- Large commercial and industrial electrical networks.
