ABB 1SDA125689R1 Emax 3 E2.3H 1250 Ekip Aware LSI 4p WMP
The ABB 1SDA125689R1 is an Emax 3 E2.3H 1250 air circuit-breaker moving part equipped with an Ekip Aware LSI electronic trip unit and four poles, designed for reliable protection and switching in high-current low-voltage power distribution systems.
With a rated current of 1250 A, the E2.3H platform provides high short-circuit performance for demanding electrical installations, while the Ekip Aware LSI release combines adjustable long-time, short-time and instantaneous protection functions.
This four-pole withdrawable moving part is designed for integration into ABB SACE Emax 3 switchgear, providing dependable circuit protection together with convenient removal for inspection and maintenance.
Key Advantages
- ABB SACE Emax 3 E2.3H platform for demanding low-voltage power distribution.
- Rated current of 1250 A for high-capacity electrical installations.
- Ekip Aware LSI electronic protection with long-time, short-time and instantaneous functions.
- High short-circuit performance with an Icu of 85 kA at 440 V AC.
- Rated short-time withstand current of 100 kA for 1 s.
- Four-pole withdrawable moving-part configuration.
- Designed for integration into ABB Emax 3 withdrawable switchgear assemblies.
Key Features
- Emax 3 E2.3H 1250 air circuit-breaker moving part.
- Ekip Aware LSI solid-state electronic release.
- Long-time protection setting: 500–1250 A.
- Short-time protection function for selective circuit protection.
- Instantaneous protection setting: 1875–18750 A.
- Four-pole construction.
- Withdrawable/draw-out WMP configuration.
- Four auxiliary contacts for signalling and control functions.
- Rated current: 1250 A.
- Rated ultimate short-circuit breaking capacity Icu: 85 kA at 440 V AC.
- Rated short-time withstand current Icw: 100 kA for 1 s.
High-Performance Protection for Industrial Power Distribution
The ABB 1SDA125689R1 provides high-capacity circuit protection within SACE Emax 3 assemblies where high short-circuit withstand capability and flexible electronic protection are required. Its E2.3H 1250 platform is rated for 1250 A and provides an Icu of 85 kA at 440 V AC.
The Ekip Aware LSI electronic release combines long-time, short-time and instantaneous protection functions, supporting coordinated protection in complex distribution systems. The four-pole withdrawable moving-part design allows convenient removal from the associated switchgear for inspection and servicing.
Typical Applications
- Industrial low-voltage distribution systems
- Main distribution switchboards
- High-current feeder protection
- Commercial electrical infrastructure
- Factory and manufacturing power systems
- Power distribution panels and switchgear assemblies
- Installations requiring high short-circuit withstand capability
