Why Choose the ABB 1SDA125763R1?
The ABB 1SDA125763R1 is an SACE Emax 3 E4.3S 3200 air circuit breaker moving part designed for high-capacity low-voltage power distribution and protection applications. It combines a 3200 A rated current with an Ekip Aware LI electronic trip unit for dependable long-time overload and instantaneous short-circuit protection.
This 4-pole withdrawable moving part (WMP) is designed for use with compatible ABB SACE Emax 3 fixed parts, providing a practical solution for switchboards where draw-out operation, maintenance access and reliable circuit protection are required.
With its E4.3S platform, Ekip Aware LI protection and 4-pole configuration, the 1SDA125763R1 is suited to demanding industrial, commercial and infrastructure power-distribution systems requiring high-current circuit protection.
Key Advantages
- High 3200 A current rating: Suitable for high-capacity low-voltage distribution systems.
- E4.3S frame: Provides a robust high-current air circuit breaker platform for demanding power-distribution applications.
- Ekip Aware LI protection: Combines long-time overload and instantaneous short-circuit protection functions.
- 4-pole configuration: Supports three-phase systems where neutral switching and protection are required.
- Withdrawable moving part: Designed for compatible Emax 3 draw-out assemblies to support installation, inspection and maintenance.
- Four auxiliary contacts: Supports integration with switchboard control and indication circuits.
Key Features
- Manufacturer: ABB
- Part number: 1SDA125763R1
- Product family: SACE Emax 3
- Breaker type: E4.3S
- Rated current: 3200 A
- Configuration: 4-pole
- Execution: Withdrawable moving part (WMP)
- Electronic trip unit: Ekip Aware LI
- Long-time protection setting range: 1280–3200 A
- Instantaneous protection setting range: 4800–48000 A
- Rated short-circuit breaking capacity: 85 kA at 415 V
- Auxiliary contacts: 4
- EAN: 8056221263153
Power Distribution & Protection
The ABB SACE Emax 3 E4.3S platform is designed for high-current low-voltage power distribution, combining advanced Ekip electronic protection with a robust air circuit breaker architecture. The Ekip Aware LI trip unit provides long-time overload and instantaneous protection functions for applications requiring reliable circuit interruption and protection.
As a 4-pole withdrawable moving part, the ABB 1SDA125763R1 is intended for compatible Emax 3 switchboards and distribution assemblies where draw-out functionality can simplify inspection, servicing and replacement. Its 3200 A rating and high short-circuit breaking capability make it suitable for high-demand electrical distribution systems.
Typical Applications
- Main and secondary low-voltage distribution boards
- Industrial electrical distribution systems
- Commercial building power distribution
- Infrastructure and utility switchboards
- High-current feeder protection
- Generator and transformer distribution sections
- Manufacturing and process-industry electrical systems
- Switchboards requiring withdrawable circuit breaker technology
