Why Choose the ABB 1SDA125828R1?
The ABB 1SDA125828R1 is an Emax 3 air circuit breaker featuring the E6.3H 6300 Ekip Aware LI configuration with four poles and a withdrawable moving part (WMP). Designed for high-capacity low-voltage power distribution, it combines advanced electronic protection with high short-circuit performance.
With a rated current of 6300 A, the 1SDA125828R1 provides LI protection functions for dependable overload and instantaneous short-circuit protection in demanding electrical distribution applications.
As part of the ABB SACE Emax 3 family, this four-pole withdrawable breaker is designed for compatible switchboards requiring very high current capacity, reliable circuit protection and practical maintenance access.
Key Advantages
- Very high current capacity: Rated for continuous currents up to 6300 A.
- Advanced Ekip Aware protection: Electronic LI protection provides long-time overload and instantaneous short-circuit protection.
- High breaking performance: Up to 100 kA ultimate short-circuit breaking capacity at 440 V.
- High short-time withstand capability: 100 kA short-time withstand current for 1 s.
- Four-pole configuration: Provides four-pole switching and protection for compatible low-voltage distribution systems.
- Withdrawable design: The WMP configuration supports installation, isolation and maintenance within compatible Emax 3 switchboards.
- Emax 3 platform: Designed for demanding industrial and commercial power distribution applications.
Key Features
- Manufacturer: ABB
- Product family: SACE Emax 3
- Breaker type: Air circuit breaker
- Frame size: E6.3H
- Rated current: 6300 A
- Protection release: Ekip Aware
- Protection functions: LI
- Number of poles: 4
- Configuration: Withdrawable moving part (WMP)
- Application: Low-voltage power distribution and circuit protection
Power Distribution & Protection
The ABB 1SDA125828R1 is designed for high-capacity power distribution systems where reliable circuit protection and controlled interruption are essential. Its Ekip Aware LI release combines long-time overload protection with instantaneous short-circuit protection, while the E6.3H frame provides substantial interrupting and short-time withstand capability for demanding installations.
The four-pole withdrawable moving-part configuration is suitable for compatible Emax 3 switchboards where operational flexibility and maintainability are important. Its 6300 A rating makes it suitable for large distribution assemblies, high-current feeders and other demanding electrical infrastructure.
Typical Applications
- Industrial low-voltage power distribution
- Large commercial electrical installations
- Main distribution switchboards
- High-current feeder protection
- Power generation and distribution facilities
- Data centre and critical infrastructure power systems
- Manufacturing and process industry installations
- Switchboard assemblies requiring withdrawable air circuit breakers
