Why Choose the ABB 1SDA124917R1?
The ABB 1SDA124917R1 is an SACE Emax 3 E4.3N 4000 Ekip Aware LI 3-pole fixed air circuit breaker designed for high-current low-voltage power distribution and circuit protection applications.
With a 4000 A rated current and Ekip Aware electronic trip unit, this air circuit breaker provides dependable long-time overload and instantaneous short-circuit protection for demanding electrical installations.
The fixed 3-pole configuration with rear horizontal terminals enables practical integration into compatible switchboards and distribution assemblies where high-capacity protection and reliable switching performance are required.
Key Advantages
- 4000 A rated current for high-capacity power distribution systems
- Ekip Aware electronic release for advanced protection and monitoring
- LI protection combining long-time overload and instantaneous short-circuit protection
- 3-pole fixed construction for secure and consistent switchboard installation
- Rear horizontal terminals for practical connection within compatible assemblies
- 66 kA Icu at 440 V AC for high short-circuit interruption capability
- Designed for demanding industrial and commercial low-voltage distribution applications
Key Features
- ABB SACE Emax 3 E4.3N series air circuit breaker
- Order code: 1SDA124917R1
- Rated current: 4000 A
- 3-pole fixed version
- Ekip Aware electronic trip unit
- LI protection functions
- Rear horizontal connection configuration
- Four auxiliary contacts and open/closed position indication
High-Current Power Distribution and Protection
The ABB 1SDA124917R1 combines the high-current capability of the Emax 3 E4.3N platform with an Ekip Aware electronic trip unit. Its LI protection functions provide long-time protection against overload conditions together with instantaneous operation during high-current short-circuit events.
The fixed 3-pole construction and rear horizontal terminal arrangement make this air circuit breaker suitable for switchboards, distribution panels and other low-voltage power systems requiring protection at currents up to 4000 A.
Typical Applications
- Low-voltage main distribution switchboards
- Industrial power distribution systems
- Commercial electrical distribution equipment
- High-current feeder protection
- Manufacturing and process plants
- Large building electrical infrastructure
- Power distribution and energy management installations
