Why Choose the ABB 1SDA128920R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128920R1 is a reliable SACE Emax 3 low-voltage air circuit breaker designed for protection, switching and monitoring in industrial electrical distribution systems. It is an E1.3N 250 Ekip Aware LSIG 3-pole withdrawable circuit breaker with a withdrawable moving portion configuration, providing advanced electronic protection for low-voltage applications.
As part of the advanced ABB Emax 3 air circuit breaker series, the 1SDA128920R1 combines dependable circuit interruption capability with intelligent Ekip Aware electronic protection. The LSIG protection functions provide long-time, short-time, instantaneous and earth-fault protection for improved electrical system safety and reliability.
With a rated current of 250 A and a three-pole withdrawable design, this circuit breaker is suitable for industrial switchboards, power distribution assemblies and applications requiring flexible maintenance access. Its withdrawable construction enables easier inspection, replacement and servicing within compatible switchgear systems.
Key Advantages
- Compact ABB SACE Emax 3 air circuit breaker for low-voltage distribution.
- 250 A rated current suitable for industrial electrical systems.
- Three-pole withdrawable configuration for convenient maintenance and service.
- Ekip Aware LSIG electronic release for comprehensive circuit protection.
- Flexible integration into modern low-voltage switchgear assemblies.
- Reliable protection against overload, short-circuit and earth-fault conditions.
Key Features
- ABB SACE Emax 3 E1.3N series.
- 250 A rated current.
- Ekip Aware LSIG protection unit.
- Three-pole withdrawable breaker design.
- Long-time, short-time, instantaneous and earth-fault protection functions.
- Designed for low-voltage power distribution applications.
- Withdrawable moving portion for improved maintenance flexibility.
- Suitable for industrial switchboards and electrical distribution systems.
Reliable Protection for Industrial Electrical Systems
Air circuit breakers such as the ABB Emax 3 provide essential protection by monitoring electrical current and interrupting circuits during abnormal operating conditions. The integrated Ekip Aware LSIG electronic release enables advanced protection settings for improved system performance and operational safety.
The Emax 3 platform is designed for modern low-voltage switchgear applications, combining intelligent protection technology with flexible installation options. The withdrawable design of the 1SDA128920R1 allows easier maintenance procedures while maintaining dependable protection performance.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Electrical control panels and switchgear assemblies.
- Manufacturing and process automation facilities.
- Commercial building power distribution.
- Motor control and feeder protection systems.
- Industrial infrastructure installations.
