Why Choose the ABB 1SDA125507R1 E4.3N 4000 Ekip Aware LSI 3p WMP?
The ABB 1SDA125507R1 is a high-capacity SACE Emax 3 air circuit breaker designed for reliable protection and switching in demanding low-voltage power distribution systems. As part of the E4.3N range, it combines a 4000 A rated current with an advanced Ekip Aware LSI electronic release for dependable overload, short-circuit and selective protection.
The Ekip Aware LSI release provides long-time, short-time and instantaneous protection, helping protect electrical equipment and conductors against sustained overloads and high-level short-circuit conditions. Its three-pole configuration makes the breaker suitable for three-phase distribution systems requiring high current capacity and dependable circuit interruption.
With its E4.3N 4000 platform, three-pole WMP configuration and Ekip Aware LSI release, the ABB 1SDA125507R1 is suited to industrial switchboards, power distribution assemblies and infrastructure installations where robust high-current protection and reliable fault management are required.
Key Advantages
- High-capacity 4000 A air circuit breaker for demanding electrical distribution systems.
- E4.3N breaker platform designed for high-performance low-voltage power distribution.
- Advanced Ekip Aware LSI electronic protection release.
- Integrated long-time, short-time and instantaneous protection functions.
- Three-pole WMP configuration for three-phase electrical systems.
- High short-circuit performance with 66 kA Icu at 440 V and 66 kA Icw for 1 s.
Key Features
- ABB SACE Emax 3 air circuit breaker.
- E4.3N 4000 frame and current rating.
- 4000 A rated current.
- Ekip Aware LSI electronic release.
- 3-pole configuration.
- WMP product configuration.
- LSI protection functions for overload, short-time and instantaneous short-circuit protection.
- 66 kA Icu at 440 V.
- 66 kA Icw for 1 s.
- Order code 1SDA125507R1.
- EAN 8056221260596.
Reliable Protection for High-Capacity Power Distribution
The ABB 1SDA125507R1 combines the robust construction of the SACE Emax 3 platform with an electronic Ekip Aware LSI release for dependable circuit protection. Its long-time, short-time and instantaneous protection functions help safeguard conductors and electrical equipment against overload and short-circuit conditions while supporting coordinated protection arrangements.
With a 4000 A rating, 66 kA Icu at 440 V and 66 kA Icw for 1 s, this E4.3N breaker is designed for high-capacity distribution applications where substantial continuous current handling and dependable fault protection are required. Its three-pole arrangement is suitable for three-phase installations across industrial, commercial and infrastructure environments.
Typical Applications
- Industrial low-voltage switchboards.
- High-capacity electrical distribution systems.
- Power distribution and energy infrastructure.
- Commercial and industrial building services.
- Large electrical loads and feeder circuits.
- Manufacturing plants and process installations.
- Main distribution and circuit protection systems.
