Why Choose the ABB 1SDA125724R1 Emax 3 E2.3S 2000A Air Circuit Breaker?
The ABB 1SDA125724R1 is a high-capacity four-pole withdrawable air circuit breaker moving part for the ABB SACE Emax 3 E2.3S platform. It is configured with an Ekip Aware LSI electronic trip unit and a 2000 A rated current, providing advanced protection and switching capabilities for demanding low-voltage electrical distribution systems.
Designed for industrial and commercial power distribution, the Emax 3 E2.3S platform combines robust circuit-breaking technology with electronic protection and a withdrawable construction. The moving part is designed for installation in a compatible Emax 3 switchboard and supports inspection, servicing and maintenance of high-current distribution equipment.
With a 2000 A rated current, four-pole configuration and Ekip Aware LSI protection, the ABB 1SDA125724R1 is suitable for high-current distribution applications requiring long-time, short-time and instantaneous overcurrent protection. Its E2.3S breaking-performance class provides a rated ultimate short-circuit breaking capacity of 85 kA at 440 V.
Key Advantages
- High-capacity ABB SACE Emax 3 E2.3S withdrawable circuit breaker configuration.
- 2000 A rated current for high-power low-voltage distribution systems.
- Four-pole construction for three-phase distribution systems with neutral switching.
- Integrated Ekip Aware LSI electronic trip unit.
- Adjustable long-time, short-time and instantaneous overcurrent protection.
- Long-time current setting range of 800–2000 A.
- Instantaneous current setting range of 3000–30000 A.
- Withdrawable moving-part construction for compatible Emax 3 switchgear.
Key Features
- ABB SACE Emax 3 E2.3S series.
- 2000 A rated current.
- Ekip Aware LSI electronic trip unit.
- Four-pole withdrawable moving part.
- Long-time protection with adjustable I1 setting from 800–2000 A.
- Short-time overcurrent protection through the LSI protection configuration.
- Instantaneous protection with adjustable I3 setting from 3000–30000 A.
- 85 kA rated ultimate short-circuit breaking capacity at 440 V.
- 66 kA rated short-time withstand current for 1 s.
- Four auxiliary contacts included in the configured assembly.
Advanced Protection for Low-Voltage Power Distribution
The ABB SACE Emax 3 E2.3S platform is designed for high-capacity low-voltage distribution applications where dependable circuit protection, switching capability and serviceability are important. The Ekip Aware LSI electronic trip unit provides long-time, short-time and instantaneous protection functions that can be configured to support coordinated protection within electrical distribution systems.
The withdrawable moving-part arrangement allows the circuit breaker assembly to be moved between operating and withdrawn positions within a compatible switchboard. This provides a practical solution for inspection, servicing and maintenance of high-current electrical distribution equipment while supporting efficient switchboard operation.
Typical Applications
- Industrial low-voltage switchboards.
- Main distribution boards and electrical distribution systems.
- Commercial and infrastructure power installations.
- Industrial plants and high-capacity electrical networks.
- Generator and transformer distribution systems.
- High-current power distribution applications.
- Switchgear assemblies requiring withdrawable ACB technology.
