Why Choose the ABB 1SDA125709R1 Emax 3 E2.3H 1600A Air Circuit Breaker?
The ABB 1SDA125709R1 is a high-performance four-pole withdrawable air circuit breaker moving part for the ABB SACE Emax 3 E2.3H platform. It is configured with an Ekip Aware LSI electronic trip unit and a 1600 A rated current, providing dependable protection and switching for high-capacity low-voltage electrical distribution systems.
Designed for demanding power distribution applications, the Emax 3 E2.3H platform combines advanced electronic protection with a robust withdrawable construction. The moving part can be withdrawn from its compatible fixed installation for inspection, maintenance and servicing, supporting efficient operation of industrial and commercial switchboards.
With a 1600 A rated current, four-pole configuration and Ekip Aware LSI protection, the ABB 1SDA125709R1 is suitable for high-current distribution applications where long-time, short-time and instantaneous overcurrent protection are required. The withdrawable moving-part format provides a practical solution for high-capacity switchgear installations.
Key Advantages
- High-capacity ABB SACE Emax 3 E2.3H withdrawable circuit breaker configuration.
- 1600 A rated current suitable for high-power low-voltage distribution systems.
- Four-pole construction for three-phase systems incorporating a neutral conductor.
- Integrated Ekip Aware LSI electronic trip unit.
- Adjustable long-time protection with an I1 range of 640–1600 A.
- Adjustable instantaneous protection with an I3 range of 2400–24000 A.
- Withdrawable moving-part construction supports inspection and maintenance of compatible switchgear.
Key Features
- ABB SACE Emax 3 E2.3H series.
- 1600 A rated current.
- Ekip Aware LSI electronic trip unit.
- Four-pole withdrawable moving part.
- Long-time overcurrent protection with adjustable I1 setting from 640–1600 A.
- Short-time protection provided by the LSI protection configuration.
- Instantaneous protection with adjustable I3 setting from 2400–24000 A.
- 100 kA rated ultimate short-circuit breaking capacity at 440 V.
- 85 kA rated short-time withstand current for 1 s.
Advanced Protection for Low-Voltage Power Distribution
The ABB SACE Emax 3 E2.3H platform is designed for high-capacity low-voltage electrical distribution where dependable circuit protection, switching capability and serviceability are important. The Ekip Aware LSI trip unit provides long-time, short-time and instantaneous protection functions to support coordinated protection within electrical distribution systems.
The withdrawable moving-part construction allows the circuit breaker assembly to be moved between operating and withdrawn positions within a compatible switchboard. This arrangement can simplify inspection and maintenance activities while providing a practical approach to servicing high-current distribution equipment.
Typical Applications
- Industrial low-voltage switchboards.
- Main distribution boards and power distribution systems.
- Commercial and infrastructure electrical installations.
- Industrial plants and high-capacity electrical networks.
- Generator and transformer distribution systems.
- High-current power distribution applications.
- Switchgear assemblies requiring withdrawable ACB technology.
