Why Choose the ABB 1SDA125536R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125536R1 is a high-capacity air circuit breaker moving part designed for reliable protection and switching of low-voltage electrical power distribution systems. As part of the advanced ABB SACE Emax 3 E6.3X series, it is designed for demanding industrial and infrastructure applications requiring high current-carrying capability and dependable electronic protection.
This three-pole withdrawable moving part incorporates an Ekip Aware LI electronic release with long-time and instantaneous protection functions. The Emax 3 platform combines advanced protection, monitoring and communication capabilities to support modern power distribution systems and improve operational reliability.
With a 4000 A rated current, an Icu of 150 kA at 440 V and an Icw of 120 kA for 1 s, the E6.3X 4000 is suited to high-current switchboards and demanding electrical distribution installations. The WMP configuration identifies the withdrawable circuit-breaker moving part for compatible Emax 3 systems.
Key Advantages
- High-capacity Emax 3 air circuit breaker moving part for industrial power distribution.
- 4000 A rated current suitable for high-current electrical systems.
- Three-pole configuration for three-phase power distribution applications.
- Ekip Aware LI electronic protection with long-time and instantaneous protection functions.
- 150 kA ultimate short-circuit breaking capacity at 440 V.
- 120 kA short-time withstand current for 1 s for demanding distribution systems.
- Withdrawable moving-part construction supports practical switchboard maintenance and replacement.
Key Features
- ABB SACE Emax 3 E6.3X series.
- 4000 A rated current.
- Three-pole electrical configuration.
- Ekip Aware electronic release.
- LI protection functions for long-time and instantaneous protection.
- 150 kA Icu at 440 V.
- 120 kA Icw for 1 s.
- WMP withdrawable moving-part configuration.
Reliable Protection for Industrial Power Distribution
Air circuit breakers such as the ABB Emax 3 E6.3X provide high-capacity switching and protection for low-voltage power distribution systems. The Ekip Aware LI release combines long-time overload protection with instantaneous short-circuit protection to help protect electrical equipment and distribution infrastructure under demanding operating conditions.
The withdrawable moving-part configuration enables the circuit breaker to be integrated into compatible Emax 3 switchboards where maintainability and operational flexibility are important. The Emax 3 platform is designed for industrial power distribution, infrastructure and high-current electrical installations requiring advanced protection and monitoring capabilities.
Typical Applications
- Industrial low-voltage power distribution switchboards.
- High-current main and secondary distribution systems.
- Manufacturing plants and industrial facilities.
- Transformer and generator distribution systems.
- Commercial and infrastructure power distribution.
- Data centre and critical power distribution installations.
- Withdrawable switchgear and electrical distribution assemblies.
