Why Choose the ABB 1SDA125708R1 Emax 3 E2.3H 1600A Air Circuit Breaker?
The ABB 1SDA125708R1 is a high-performance four-pole withdrawable air circuit breaker (ACB) moving part for the ABB SACE Emax 3 E2.3H platform. It is configured with an Ekip Aware LI electronic trip unit and a 1600 A frame rating, providing dependable protection and monitoring for 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 The moving part allows the circuit breaker to be withdrawn from its fixed installation position for inspection, maintenance and servicing while supporting efficient switchboard operation.
The ABB 1SDA125708R1 is a 1600 A, four-pole E2.3H circuit breaker moving part with Ekip Aware LI protection. Its Ekip Aware LI configuration provides long-time and instantaneous overcurrent protection, with adjustable long-time current settings and instantaneous protection suitable for high-capacity low-voltage distribution applications.
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 switching and protection of three-phase systems with neutral.
- Integrated Ekip Aware LI electronic trip unit.
- Adjustable long-time protection with an I1 range of 640–1600 A.
- Withdrawable construction supports inspection, maintenance and switchboard servicing.
Key Features
- ABB SACE Emax 3 E2.3H series.
- 1600 A frame rating.
- Ekip Aware LI electronic trip unit.
- Four-pole withdrawable moving part.
- Long-time overcurrent protection with adjustable I1 setting from 640–1600 A.
- Instantaneous protection with I3 adjustment from 2400–24000 A.
- High breaking-capacity E2.3H configuration.
- Suitable for low-voltage power distribution and industrial switchboards.
- Includes auxiliary contacts and position indication functions as part of the configured moving assembly.
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 essential. The electronic Ekip Aware LI trip unit provides adjustable protection parameters to help coordinate the breaker with the wider distribution system.
The withdrawable construction allows the breaker assembly to be moved between operating and withdrawn positions within a compatible switchboard. This configuration can simplify inspection and maintenance activities while helping electrical engineers manage high-current distribution equipment efficiently.
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.
- Motor and process power distribution applications.
- Switchgear assemblies requiring withdrawable ACB technology.
