Why Choose the ABB 1SDA125759R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA125759R1 is an Emax 3 E4.3N low-voltage air circuit breaker designed for reliable protection and control of high-current electrical distribution systems. This four-pole withdrawable circuit breaker is equipped with an Ekip Aware LSI electronic protection release and is rated for a nominal current of 3200 A.
As part of the advanced ABB SACE Emax 3 series, the 1SDA125759R1 combines high-performance circuit protection with electronic monitoring and configurable protection functions. The Ekip Aware release provides long-time, short-time and instantaneous protection functionality for demanding power distribution applications.
The E4.3N 3200 Ekip Aware LSI 4p WMP configuration provides four poles and a withdrawable construction suitable for applications where convenient isolation, inspection and maintenance of the circuit breaker are required. Its rated short-circuit breaking capacity is 66 kA at 415 V AC, making it suitable for high-power industrial and commercial electrical installations.
Key Advantages
- High-current ABB Emax 3 air circuit breaker for low-voltage power distribution.
- 3200 A rated current for demanding electrical distribution applications.
- Four-pole configuration for comprehensive circuit isolation and protection.
- Electronic Ekip Aware LSI protection release for configurable circuit protection.
- 66 kA short-circuit breaking capacity at 415 V AC.
- Withdrawable construction facilitates isolation and maintenance of the circuit breaker.
Key Features
- ABB Emax 3 E4.3N series.
- 3200 A rated current.
- Four-pole configuration.
- Ekip Aware LSI electronic protection release.
- 66 kA short-circuit breaking capacity at 415 V AC.
- Withdrawable WMP configuration.
- Electronic long-time, short-time and instantaneous protection functions.
- Designed for high-current low-voltage power distribution systems.
Reliable Protection for High-Current Power Distribution
Air circuit breakers such as the ABB Emax 3 E4.3N protect electrical distribution systems by detecting abnormal current conditions and interrupting the circuit when protection thresholds are reached. Electronic protection releases provide adjustable protection characteristics, allowing the circuit breaker to be configured for the requirements of the installation.
The Emax 3 platform is designed for demanding low-voltage power distribution applications where high current ratings, advanced protection and maintenance flexibility are required. The Ekip Aware LSI release combines electronic protection with monitoring capabilities for modern electrical distribution systems.
Typical Applications
- Industrial low-voltage power distribution systems.
- Main switchboards and electrical distribution boards.
- Commercial building power distribution.
- Transformer and generator protection systems.
- High-current industrial installations.
- Power management and electrical infrastructure applications.
