Why Choose the ABB 1SDA124873R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA124873R1 is a high-performance air circuit breaker (ACB) from the ABB SACE Emax 3 series, designed for reliable protection and switching of high-current low-voltage electrical distribution systems. This E2.3N 2500 Ekip Aware LSI breaker provides a three-pole fixed configuration for demanding industrial, commercial and infrastructure power distribution applications.
The breaker incorporates an Ekip Aware LSI electronic trip unit with adjustable long-time, short-time and instantaneous short-circuit protection. Its fixed construction, rear horizontal connections and integrated auxiliary contacts support dependable installation and monitoring within compatible switchboards and electrical distribution assemblies.
With a rated uninterrupted current of 2500 A and a rated voltage of 690 V AC, the ABB 1SDA124873R1 is suitable for high-current electrical distribution applications. The E2.3N frame provides a 66 kA rated short-circuit breaking capacity at 400 V AC, making it suitable for demanding power distribution systems.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 2500 A rated uninterrupted current for high-current electrical installations.
- Three-pole fixed construction for robust switchboard integration.
- Integrated Ekip Aware LSI electronic protection.
- 66 kA rated short-circuit breaking capacity at 400 V AC.
- Adjustable protection settings support electrical system coordination.
- Rear horizontal main-circuit connections for compatible switchboard installations.
Key Features
- ABB SACE Emax 3 E2.3N series.
- 2500 A rated uninterrupted current.
- Ekip Aware LSI electronic trip unit.
- Three-pole fixed configuration.
- 66 kA rated short-circuit breaking capacity at 400 V AC.
- 1000–2500 A long-time overload protection setting.
- 1500–25000 A short-time protection setting.
- 3750–37500 A instantaneous short-circuit protection setting.
- Rear horizontal main-circuit connection arrangement.
- Four changeover auxiliary contacts.
- Integrated trip contact and open/closed position indication.
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 circuits when abnormal operating conditions occur. The adjustable Ekip Aware LSI electronic release provides configurable long-time, short-time and instantaneous protection functions to support the requirements of high-current installations.
The Emax 3 platform is designed for demanding low-voltage distribution applications where reliable switching, circuit protection and system coordination are required. The fixed three-pole construction and rear horizontal connection arrangement make the 1SDA124873R1 suitable for integration into compatible industrial and commercial switchboards.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main electrical switchboards and distribution panels.
- Transformer protection and distribution equipment.
- Generator and installation protection systems.
- Industrial manufacturing and processing facilities.
- Commercial and infrastructure power distribution systems.
