ABB 1SDA125744R1 Emax 3 E2.3H 2500 Ekip Aware LSI 4P WMP
The ABB 1SDA125744R1 is an Emax 3 E2.3H 2500 air circuit breaker moving part equipped with an Ekip Aware LSI electronic trip unit, four poles and a withdrawable WMP construction. It is designed for high-current low-voltage power distribution and switching applications requiring dependable protection and high short-circuit performance.
With a rated current of 2500 A, the Ekip Aware LSI release provides long-time, short-time and instantaneous overcurrent protection functions. The four-pole configuration provides comprehensive phase and neutral switching, while the withdrawable moving-part design supports practical integration and maintenance within compatible ABB Emax 3 switchboards.
The E2.3H frame forms part of the ABB SACE Emax 3 family of open low-voltage circuit breakers. The 1SDA125744R1 is specified with an Icu of 85 kA at 440 V AC and an Icw of 100 kA for 1 s, providing high fault-withstand and interruption capability for demanding electrical distribution installations.
Key Advantages
- High 2500 A rated current for demanding low-voltage distribution systems
- Ekip Aware LSI electronic trip unit for comprehensive overcurrent protection
- Long-time, short-time and instantaneous protection functions
- 85 kA rated ultimate short-circuit breaking capacity at 440 V AC
- 100 kA rated short-time withstand current for 1 s at 440 V AC
- Four-pole configuration for phase and neutral switching
- Withdrawable WMP moving-part construction for compatible Emax 3 assemblies
- Four auxiliary contacts for additional control and signalling functions
Key Features
- ABB SACE Emax 3 E2.3H 2500 frame
- 2500 A rated current
- Ekip Aware LSI electronic release
- Long-time, short-time and instantaneous protection
- Four-pole electrical configuration
- Withdrawable WMP moving part
- 85 kA Icu at 440 V AC
- 100 kA Icw for 1 s at 440 V AC
- Four auxiliary contacts
High-Capacity Protection for Industrial Power Distribution
The ABB 1SDA125744R1 provides high-capacity circuit protection for electrical distribution systems where substantial current ratings and high fault interruption capability are required. Its E2.3H 2500 frame combines a 2500 A rated current with high short-circuit performance for demanding industrial and commercial installations.
The Ekip Aware LSI release provides long-time, short-time and instantaneous protection functions, supporting protection coordination across complex electrical systems. Its four-pole withdrawable WMP construction and four auxiliary contacts facilitate integration into compatible Emax 3 switchboards and support operational, control and maintenance requirements.
Typical Applications
- Industrial main distribution boards
- Large commercial electrical distribution systems
- High-current feeder protection
- Industrial plant incoming feeders
- Transformer distribution systems
- Generator distribution systems
- Power distribution switchboards
- Critical infrastructure electrical installations
- Low-voltage power distribution assemblies
