Why Choose the ABB 1SDA125312R1 E1.3N 630 Ekip Aware LSI Air Circuit Breaker?
The ABB 1SDA125312R1 is a high-performance Emax 3 air circuit breaker designed for reliable protection and switching of low-voltage electrical distribution systems. As part of the advanced ABB Emax 3 air circuit breaker series, it combines an Ekip Aware electronic release with LSI protection functions for dependable management of overload and short-circuit conditions.
This circuit breaker is configured as an E1.3N 630 Ekip Aware LSI 3p WMP unit with a rated permanent current of 630 A. Its three-pole configuration is suitable for three-phase low-voltage distribution applications, while the electronic release provides adjustable long-time, short-time and instantaneous overcurrent protection.
The 1SDA125312R1 uses a withdrawable construction for integration into compatible ABB Emax 3 switchgear. It provides a rated voltage of up to 690 V, a rated short-circuit breaking capacity of 66 kA at 400 V and four change-over auxiliary contacts for status indication and control.
Key Advantages
- High-capacity ABB Emax 3 air circuit breaker for low-voltage power distribution.
- 630 A rated permanent current for demanding electrical distribution applications.
- Three-pole configuration for three-phase electrical systems.
- Integrated Ekip Aware electronic release with LSI protection functions.
- 66 kA rated short-circuit breaking capacity at 400 V.
- Adjustable long-time, short-time and instantaneous overcurrent protection settings.
- Withdrawable construction supports practical switchgear installation and maintenance.
- Four change-over auxiliary contacts support circuit-breaker status indication and control.
Key Features
- ABB Emax 3 air circuit breaker series.
- E1.3N frame configuration.
- 630 A rated permanent current.
- Ekip Aware electronic release.
- LSI protection functions.
- Three-pole electrical configuration.
- Withdrawable WMP configuration.
- 66 kA rated short-circuit breaking capacity at 400 V, 50 Hz.
- Four change-over auxiliary contacts.
- IP30 degree of protection.
Advanced Circuit Protection for Electrical Distribution
Air circuit breakers such as the ABB Emax 3 provide dependable protection and switching for low-voltage electrical distribution systems. Electronic trip units continuously monitor electrical conditions and can initiate circuit interruption when configured protection thresholds are exceeded.
The Ekip Aware LSI release combines adjustable long-time, short-time and instantaneous protection functions, allowing engineers to configure circuit protection for different electrical distribution requirements. The withdrawable construction also supports practical access for inspection, maintenance and replacement within compatible Emax 3 switchgear assemblies.
Typical Applications
- Low-voltage electrical distribution switchboards.
- Industrial power distribution systems.
- Commercial electrical distribution installations.
- Transformer and generator protection systems.
- Main and feeder circuit protection.
- Industrial control and power management systems.
- Three-phase low-voltage switchgear assemblies.
- ABB Emax 3 switchgear and compatible electrical distribution equipment.
