Why Choose the ABB E4.3H 4000 Ekip Aware LI 3p WMP?
The ABB 1SDA125516R1 is a high-capacity SACE Emax 3 air circuit breaker configured as an E4.3H 4000 Ekip Aware LI three-pole WMP unit for reliable protection and switching in low-voltage power distribution systems. As part of the advanced ABB SACE Emax 3 air circuit breaker series, it combines a 4000 A rated current with an Ekip Aware electronic release and LI protection functions for demanding electrical distribution applications.
This circuit breaker is designed for industrial and commercial power distribution where dependable circuit protection, switching and high short-circuit performance are required. The Ekip Aware electronic release provides configurable protection functionality, while the Emax 3 platform is designed for integration into modern low-voltage switchboards and power distribution installations.
With a 4000 A rated current, three-pole configuration and Ekip Aware LI protection, the E4.3H 4000 provides a high-performance solution for demanding distribution applications. The Emax 3 E4.3H platform offers a high breaking-capacity configuration, with published short-circuit ratings of up to 100 kA at 440 V depending on the applicable rating conditions.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 4000 A rated current for high-current electrical distribution systems.
- Three-pole configuration for three-phase power distribution applications.
- Integrated Ekip Aware electronic release for advanced circuit protection.
- LI protection functions providing long-time and instantaneous overcurrent protection.
- High breaking capacity suitable for demanding industrial and commercial switchboards.
Key Features
- ABB SACE Emax 3 air circuit breaker series.
- E4.3H 4000 breaker frame with 4000 A rated current.
- Ekip Aware electronic release.
- LI protection functions for long-time and instantaneous protection.
- Three-pole configuration.
- WMP configuration for the Emax 3 breaker platform.
- 100 kA Icu at 440 V for the E4.3H configuration.
- 85 kA Icw at 1 s for the E4.3H 4000 configuration.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB SACE Emax 3 E4.3H provide high-capacity protection and switching for electrical distribution systems. The Ekip Aware electronic release provides LI protection functionality, helping protect electrical circuits against long-duration overloads and high instantaneous overcurrent conditions.
The Emax 3 E4.3H platform is designed for demanding low-voltage applications where high interrupting and withstand capabilities are required. Its 4000 A configuration allows the breaker to be incorporated into main distribution boards, industrial switchboards and other high-current electrical installations.
Typical Applications
- Main low-voltage distribution switchboards.
- Industrial power distribution systems.
- Commercial electrical distribution installations.
- High-current feeder and incoming circuit protection.
- Manufacturing facilities and industrial plants.
- Power distribution equipment and switchgear assemblies.
