Why Choose the ABB 1SDA124979R1 Emax 3 E1.3N 250 Ekip Aware LI?
The ABB 1SDA124979R1 is a compact and reliable low-voltage air circuit breaker designed for protection and switching in electrical distribution systems. Part of the advanced ABB SACE Emax 3 E1.3N range, this four-pole fixed circuit breaker combines a 250 A rated current with an Ekip Aware LI electronic protection release.
The E1.3N configuration is designed for low-voltage power distribution applications where dependable overcurrent protection and accurate electronic monitoring are required. The Ekip Aware LI release provides long-time and instantaneous protection functions, helping protect circuits against sustained overloads and severe short-circuit conditions.
With a 250 A rated current, four-pole configuration and fixed front-terminal arrangement, the ABB 1SDA124979R1 is suitable for distribution boards, industrial control panels, commercial installations and other low-voltage electrical systems requiring dependable circuit protection.
Key Advantages
- 250 A air circuit breaker suitable for low-voltage distribution applications.
- Advanced Ekip Aware LI electronic protection release.
- Four-pole configuration for comprehensive three-phase plus neutral circuit protection.
- Fixed construction for permanent switchboard installation.
- Front terminal connection for straightforward electrical integration.
- Adjustable long-time protection from 100 to 250 A.
- Adjustable instantaneous protection from 375 to 3750 A.
- Compact E1.3N frame for low-voltage distribution equipment.
Key Features
- ABB SACE Emax 3 E1.3N series.
- 250 A rated current.
- Ekip Aware LI electronic release.
- Long-time and instantaneous protection.
- 4-pole electrical configuration.
- Fixed version.
- Front terminal configuration.
- I1 long-time protection adjustment: 100–250 A.
- I3 instantaneous protection adjustment: 375–3750 A.
- Suitable for low-voltage electrical distribution and protection applications.
Reliable Protection for Low-Voltage Distribution
The ABB Emax 3 E1.3N platform provides circuit protection and switching for low-voltage electrical distribution systems. The 250 A E1.3N configuration offers a practical solution for installations requiring dependable protection within a compact air circuit breaker format.
The integrated Ekip Aware LI electronic release provides long-time and instantaneous protection. The adjustable long-time setting helps protect conductors and equipment against sustained overloads, while the instantaneous function provides rapid circuit interruption during high-current fault conditions.
The four-pole configuration allows the circuit breaker to provide protection and switching across three-phase systems with a neutral pole. The fixed front-terminal design is suited to permanent installation within compatible switchboards and distribution assemblies.
Typical Applications
- Low-voltage distribution boards.
- Industrial electrical control panels.
- Commercial building distribution systems.
- Three-phase electrical installations with neutral protection.
- Industrial and manufacturing facilities.
- Feeder and branch circuit protection.
- Electrical distribution systems requiring electronic overcurrent protection.
