Why Choose the ABB 1SDA124782R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA124782R1 is a high-performance air circuit breaker (ACB) designed for reliable protection and switching of low-voltage electrical distribution systems. As part of the advanced ABB SACE Emax 3 E1.3N series, it combines a fixed three-pole configuration with an Ekip Aware LI electronic trip unit for dependable protection in industrial and commercial power installations.
This circuit breaker provides electronic overload and instantaneous short-circuit protection while supporting intelligent monitoring through the Ekip Aware platform. Its fixed installation format and front-terminal arrangement enable straightforward integration into suitable switchboards and electrical distribution assemblies.
With a 1600 A rated current, three-pole configuration and 690 V AC rated service voltage, the E1.3N 1600 is designed for high-current electrical distribution applications. The LI protection configuration provides long-time and instantaneous protection functions for safeguarding connected equipment and distribution circuits.
Key Advantages
- High-capacity ABB SACE Emax 3 air circuit breaker for low-voltage power distribution.
- 1600 A rated current suitable for demanding electrical distribution applications.
- Three-pole fixed configuration for integration into electrical switchboards.
- Integrated Ekip Aware LI electronic trip unit for advanced circuit protection.
- Adjustable long-time and instantaneous protection functions for overload and short-circuit protection.
- Four auxiliary contacts and circuit-breaker position indication for enhanced system monitoring.
Key Features
- ABB SACE Emax 3 E1.3N series.
- 1600 A rated current.
- Ekip Aware LI electronic release.
- Three-pole fixed configuration.
- Front-terminal connection arrangement.
- Long-time and instantaneous protection functions.
- 640–1600 A overload protection adjustment range.
- 2400–24000 A instantaneous short-circuit protection adjustment range.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB Emax 3 E1.3N provide controlled switching and protection for high-current low-voltage electrical distribution systems. The electronic trip unit monitors electrical conditions and can initiate circuit interruption when configured protection thresholds are exceeded.
The Ekip Aware platform provides electronic protection and monitoring capabilities for modern switchboards. In the LI configuration, the breaker combines long-time overload protection with instantaneous short-circuit protection, helping safeguard electrical equipment and distribution infrastructure against damaging current conditions.
Typical Applications
- Low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Commercial electrical installations.
- Main distribution and incoming feeder applications.
- Transformer and generator protection systems.
- Industrial control and power protection systems.
