Why Choose the ABB SACE Emax 3 E1.3B 1250 1SDA128985R1 Air Circuit Breaker?
The ABB 1SDA128985R1 is a high-performance SACE Emax 3 air circuit breaker moving part designed for reliable protection and control of low-voltage electrical distribution systems. Configured as an E1.3B 1250 four-pole withdrawable circuit breaker, it provides a 1250 A rated current together with an Ekip Aware LSIG electronic trip unit for comprehensive circuit protection.
The integrated Ekip Aware LSIG trip unit provides long-time, short-time, instantaneous and earth-fault protection functions for demanding low-voltage distribution applications. Its withdrawable construction enables the moving part to be removed from the corresponding fixed installation, supporting efficient inspection, maintenance and servicing of switchgear systems.
With a rated current of 1250 A and a rated ultimate short-circuit breaking capacity of 42 kA at 415 V, the E1.3B 1250 is designed for industrial and commercial power distribution applications requiring dependable circuit protection. This product is supplied as the moving part only (WMP); the compatible fixed part is ordered separately.
Key Advantages
- Advanced SACE Emax 3 air circuit breaker technology for low-voltage power distribution.
- 1250 A rated current suitable for demanding electrical distribution systems.
- 42 kA Icu at 415 V for reliable short-circuit interruption capability.
- Four-pole configuration for protection and switching of three phases and the neutral conductor.
- Integrated Ekip Aware LSIG electronic trip unit for comprehensive electrical protection.
- Withdrawable WMP moving-part design enables practical maintenance and servicing procedures.
- Moving part supplied separately from the compatible fixed part.
Key Features
- ABB SACE Emax 3 air circuit breaker series.
- E1.3B 1250 configuration.
- 1250 A rated current.
- 42 kA rated ultimate short-circuit breaking capacity at 415 V.
- Four-pole circuit breaker configuration.
- Ekip Aware LSIG electronic trip unit.
- Withdrawable WMP moving part.
- Fixed part ordered separately for complete withdrawable installation.
Reliable Protection for Low-Voltage Power Distribution
Air circuit breakers such as the ABB SACE Emax 3 E1.3B 1250 provide dependable switching and protection for low-voltage electrical distribution systems. The circuit breaker is engineered to interrupt fault currents when required while the electronic trip unit manages the configured protection functions.
The Ekip Aware LSIG trip unit combines long-time, short-time, instantaneous and earth-fault protection functions, providing comprehensive protection for electrical distribution equipment. The four-pole configuration supports installations where neutral conductor protection and switching are required.
Typical Applications
- Industrial low-voltage power distribution switchboards.
- Commercial and industrial electrical distribution systems.
- Feeder and incoming circuit protection.
- Power distribution panels and switchgear assemblies.
- Systems requiring four-pole air circuit breaker protection.
- Applications requiring withdrawable circuit breaker technology.
