Why Choose the ABB 1SDA124858R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA124858R1 is a high-performance air circuit breaker (ACB) from the ABB SACE Emax 3 series, designed for reliable protection of electrical distribution systems, transformers, generators and industrial installations. This fixed three-pole circuit breaker combines a high continuous current rating with advanced electronic protection for demanding low-voltage power distribution applications.
Equipped with an Ekip Aware LSI electronic trip unit, the breaker provides adjustable long-time and short-circuit protection functions for accurate system protection. Its fixed construction and rear connection arrangement support robust installation within switchboards and power distribution equipment.
With a rated uninterrupted current of 2000 A and a rated voltage of 690 V AC, the ABB 1SDA124858R1 is suitable for high-current electrical distribution applications. The breaker has a three-pole fixed configuration and Ekip Aware LSI protection with adjustable current settings for flexible system coordination.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 2000 A rated uninterrupted current for high-current electrical systems.
- Three-pole fixed construction for robust switchboard installation.
- Integrated Ekip Aware LSI electronic protection.
- 66 kA short-circuit breaking capacity at 400 V AC.
- Rear main-circuit connections for switchboard and distribution applications.
Key Features
- ABB SACE Emax 3 E2.3N series.
- 2000 A rated current.
- Ekip Aware LSI electronic trip unit.
- Three-pole fixed configuration.
- 66 kA rated short-circuit breaking capacity at 400 V AC.
- Adjustable long-time overload protection from 800–2000 A.
- Adjustable instantaneous short-circuit protection from 3000–30000 A.
- Rear-mounted main-circuit connection arrangement.
- Push-button operating control.
- Optional motor operator capability.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB Emax 3 E2.3N protect electrical distribution systems by monitoring current and interrupting the circuit when overload or short-circuit conditions occur. The Ekip Aware LSI electronic release provides adjustable protection parameters, helping engineers coordinate circuit protection with the requirements of high-current installations.
The Emax 3 platform is designed for demanding low-voltage distribution applications where dependable switching, protection and monitoring are required. The fixed three-pole construction and rear connection arrangement make the 1SDA124858R1 suitable for integration into industrial switchboards and electrical distribution assemblies.
Typical Applications
- Industrial low-voltage power distribution systems.
- Transformer protection and distribution equipment.
- Generator protection applications.
- Main switchboards and electrical distribution panels.
- Industrial plants and high-current installations.
- Commercial and infrastructure power distribution systems.
