Why Choose the ABB SACE Emax 3 E4.3N 3200 Air Circuit Breaker?
The ABB 1SDA125487R1 is a high-performance SACE Emax 3 E4.3N 3200 air circuit breaker (ACB) moving part designed for reliable protection, switching and control within high-capacity low-voltage electrical distribution systems. As part of the advanced ABB SACE Emax 3 circuit breaker series, it provides modern protection technology for industrial plants, infrastructure projects and critical power applications.
This withdrawable circuit breaker moving part is supplied with an integrated Ekip Aware LSI trip unit and is designed to operate with a separately ordered fixed part. The withdrawable configuration enables efficient maintenance procedures and flexible switchboard installation while ensuring dependable electrical protection in demanding environments.
With a rated current of 3200 A and an ultimate short-circuit breaking capacity of 66 kA at 415 V AC, the ABB SACE Emax 3 E4.3N 3200 provides reliable fault interruption and intelligent protection for industrial and infrastructure low-voltage distribution systems.
Key Advantages
- SACE Emax 3 air circuit breaker technology for advanced low-voltage power protection.
- 3200 A rated current for high-capacity electrical distribution applications.
- 66 kA Icu at 415 V AC for reliable short-circuit interruption performance.
- Integrated Ekip Aware LSI trip unit providing long-time, short-time and instantaneous protection functions.
- Withdrawable moving part (WMP) enables flexible maintenance and replacement procedures.
- Fixed part ordered separately for customised switchboard configuration.
Key Features
- ABB SACE Emax 3 series.
- E4.3N 3200 frame size.
- 3-pole air circuit breaker configuration.
- 3200 A rated current (In).
- 66 kA ultimate short-circuit breaking capacity (Icu) at 415 V AC.
- Ekip Aware LSI trip unit.
- Withdrawable version moving part only (WMP).
- Fixed part supplied separately.
- Designed for industrial and infrastructure low-voltage power distribution systems.
Reliable Power Protection for Industrial Systems
Air circuit breakers such as the ABB SACE Emax 3 E4.3N 3200 provide essential protection by detecting overload and fault conditions and safely interrupting current flow. The integrated trip unit supports accurate protection coordination and improved electrical system reliability.
The SACE Emax 3 platform is engineered for modern electrical distribution networks, combining high breaking performance, intelligent protection features and flexible withdrawable installation options for demanding applications.
Typical Applications
- Large industrial power distribution switchboards.
- Manufacturing facilities and production plants.
- Main low-voltage distribution panels.
- Power infrastructure installations.
- Transformer and generator protection systems.
- Energy management and automation installations.
