Why Choose the ABB 1SDA125436R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125436R1 is a high-performance SACE Emax 3 air circuit breaker configured as an E2.3H 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 withdrawable configuration, the 1SDA125436R1 is suitable for high-capacity power distribution, transformer protection, generator protection and main switchboard applications. ABB's Emax 3 catalogue identifies the E2.3H 1600 Ekip Aware LI configuration with a 100 kA Icu at 440 V and 85 kA Icw for 1 s.
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 withdrawable configuration for three-phase low-voltage distribution systems.
- Advanced Ekip Aware LI electronic protection.
- 100 kA rated ultimate short-circuit breaking capacity at 440 V.
- 85 kA rated short-time withstand current for 1 s at 440 V.
- Four auxiliary contacts for system status and control integration.
Key Features
- ABB SACE Emax 3 E2.3H series.
- 1600 A rated permanent current.
- Ekip Aware LI electronic release.
- Three-pole withdrawable moving-part configuration.
- 100 kA Icu at 440 V.
- 85 kA Icw for 1 s at 440 V.
- I1 adjustment range of 640–1600 A.
- I3 adjustment range of 2400–24000 A.
Reliable Protection for Industrial Power Distribution
Air circuit breakers such as the ABB Emax 3 E2.3H 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, high fault-current capability 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 high short-circuit performance.
