Why Choose the ABB Emax 3 E4.3H 4000 Ekip Aware LI 4p FHR?
The ABB 1SDA125199R1 is an Emax 3 E4.3H 4000 air circuit breaker designed for high-current low-voltage power distribution protection in demanding industrial and commercial installations. This four-pole fixed circuit breaker combines a 4000 A rated current with an Ekip Aware LI electronic release for dependable long-time overload and instantaneous short-circuit protection.
As part of the ABB SACE Emax 3 air circuit breaker series, the 1SDA125199R1 provides robust switching and protection for modern electrical distribution systems. Its fixed construction with rear horizontal terminals supports integration into suitably engineered switchboards and distribution assemblies.
With a 4000 A rated current, four-pole configuration and E4.3H high-breaking-capacity class, the 1SDA125199R1 is suited to high-current applications where reliable overload protection and strong short-circuit interruption performance are required.
Key Advantages
- High-capacity air circuit breaker for low-voltage power distribution.
- 4000 A rated current for high-current electrical distribution systems.
- Four-pole fixed construction for comprehensive circuit control.
- Ekip Aware LI electronic release with long-time and instantaneous protection functions.
- 100 kA rated ultimate short-circuit breaking capacity at 440 V AC.
- 85 kA short-time withstand current for 1 s.
- Rear-mounted horizontal terminals for practical switchboard integration.
- Four auxiliary contacts for control and monitoring applications.
Key Features
- ABB SACE Emax 3 E4.3H air circuit breaker.
- 4000 A rated current.
- Four-pole fixed configuration.
- Ekip Aware LI electronic release.
- Long-time overload and instantaneous short-circuit protection.
- 100 kA Icu at 440 V AC.
- 85 kA Icw for 1 s.
- Rear-mounted horizontal terminal arrangement.
- Four auxiliary contacts and open/closed position indication.
Reliable High-Current Power Distribution Protection
Air circuit breakers such as the ABB Emax 3 E4.3H provide protection for low-voltage electrical distribution systems by detecting and interrupting abnormal current conditions. The Ekip Aware LI electronic release provides long-time overload and instantaneous short-circuit protection to help protect conductors, switchgear and connected equipment.
The 1SDA125199R1 combines a 4000 A current rating with four-pole fixed construction and rear horizontal terminals, making it suitable for integration into appropriately engineered distribution boards and switchboards. Its high short-circuit performance supports applications where robust circuit protection is required for demanding electrical distribution systems.
Typical Applications
- Industrial low-voltage distribution switchboards.
- Commercial building power distribution systems.
- High-current feeder protection.
- Manufacturing and processing facilities.
- Electrical infrastructure and plant distribution boards.
- Main and sub-distribution panels.
- High-current electrical distribution networks.
