Why Choose the ABB 1SDA125421R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125421R1 is a high-performance SACE Emax 3 air circuit breaker configured as an E2.3B 1600 three-pole withdrawable moving part with an advanced Ekip Aware LI electronic release. It is designed for reliable protection and switching in demanding low-voltage industrial power distribution systems.
As part of the ABB Emax 3 air circuit breaker series, this unit combines high current-carrying capability with electronic protection functions for industrial electrical installations. The Ekip Aware LI release provides long-time and instantaneous protection, supporting dependable protection against overload and short-circuit conditions.
With a rated permanent current of 1600 A and a three-pole configuration, the 1SDA125421R1 is suitable for high-capacity power distribution, transformer protection, generator protection and installation protection applications. Its withdrawable moving-part format is designed for use with compatible Emax 3 E2.3B systems.
Key Advantages
- High-capacity Emax 3 air circuit breaker for industrial power distribution.
- 1600 A rated permanent current for high-load electrical installations.
- Three-pole configuration for three-phase low-voltage distribution systems.
- Advanced Ekip Aware LI electronic protection.
- Adjustable long-time and instantaneous short-circuit protection.
- Withdrawable moving-part configuration for practical installation and maintenance.
Key Features
- ABB SACE Emax 3 E2.3B series.
- 1600 A rated permanent current.
- Ekip Aware LI electronic release.
- Three-pole withdrawable moving-part configuration.
- Long-time and instantaneous LI protection functions.
- I1 adjustment range of 640–1600 A.
- I3 adjustment range of 2400–24000 A.
- Designed for high-capacity industrial power distribution and protection systems.
Reliable Protection for Industrial Power Distribution
Air circuit breakers such as the ABB Emax 3 E2.3B provide controlled switching and protection for high-current low-voltage electrical distribution systems. By combining high current ratings with electronic protection, they help protect electrical equipment against overload and short-circuit conditions.
The Ekip Aware LI electronic release provides configurable long-time and instantaneous protection functions. This makes the Emax 3 platform suitable for demanding applications where reliable electrical protection and coordinated operation are important.
Typical Applications
- Industrial low-voltage power distribution.
- Transformer protection systems.
- Generator protection and switching.
- Main distribution switchboards.
- High-current industrial installations.
- Commercial and infrastructure electrical distribution systems.
- Power distribution equipment requiring withdrawable circuit breaker technology.
