Why Choose the ABB 1SDA125843R1 Emax 3 E6.3H/f 4000 Ekip Aware LI 4p WMP?
The ABB 1SDA125843R1 is a high-performance low-voltage air circuit breaker designed for reliable protection and switching of high-current electrical distribution systems. As part of the advanced ABB SACE Emax 3 circuit breaker series, this withdrawable breaker combines intelligent Ekip Aware protection technology with high short-circuit performance for demanding power distribution applications.
The Emax 3 E6.3H/f platform is engineered for high-current installations where dependable circuit protection, operational continuity and advanced monitoring are essential. The Ekip Aware LI trip unit provides long-time and instantaneous protection functions, while the withdrawable WMP configuration supports practical installation, operation and maintenance within compatible switchgear.
With a rated current of 4000 A, four poles and an Ekip Aware LI protection function, the 1SDA125843R1 is suited to major low-voltage switchboards and power distribution systems. Its E6.3H/f configuration provides an interrupting capacity of 100 kA at 440 V AC, with a short-time withstand current of 100 kA for 1 s.
Key Advantages
- High-capacity SACE Emax 3 air circuit breaker for power distribution.
- 4000 A rated current for high-current electrical installations.
- Four-pole configuration for comprehensive circuit switching and protection.
- 100 kA interrupting capacity at 440 V AC.
- 100 kA short-time withstand current for 1 s.
- Intelligent Ekip Aware LI protection for advanced circuit protection.
- Withdrawable WMP moving portion for practical switchboard installation and maintenance.
Key Features
- ABB SACE Emax 3 E6.3H/f series.
- 4000 A rated current.
- Four-pole circuit breaker.
- Ekip Aware LI protection trip unit.
- 100 kA Icu at 440 V AC.
- 100 kA Icw for 1 s.
- Withdrawable WMP configuration.
- Designed for high-current low-voltage power distribution systems.
Advanced Protection for High-Current Power Distribution
Air circuit breakers such as the ABB Emax 3 provide controlled switching and protection for low-voltage electrical distribution systems. The E6.3H/f platform is designed for high-current applications where substantial fault levels and continuous operational requirements demand robust circuit protection.
The integrated Ekip Aware LI protection system combines long-time and instantaneous protection functions for dependable circuit protection. The withdrawable configuration allows the breaker to be positioned within compatible switchgear for efficient operation and maintenance, while the Emax 3 platform supports advanced digitalisation and connectivity for modern electrical distribution systems.
Typical Applications
- High-current low-voltage switchboards.
- Main incoming and outgoing feeders.
- Industrial power distribution systems.
- Large commercial and infrastructure electrical installations.
- Data centre and critical power distribution systems.
- Power generation and energy distribution installations.
- Industrial electrical protection and switching systems.
