Why Choose the ABB 1SDA125878R1?
The ABB 1SDA125878R1 is an Emax 3 E6.3V/f 6300 Ekip Aware LI 4-pole WMP air circuit breaker designed for high-capacity low-voltage power distribution and circuit protection applications. With a 6300 A rated current and Ekip Aware electronic release, it provides long-time and instantaneous protection for demanding electrical installations.
Part of the ABB SACE Emax 3 range, this full-size mobile part is designed for compatible withdrawable circuit breaker assemblies. The E6.3V/f platform combines very high current-carrying capacity with strong short-circuit performance, making the 1SDA125878R1 suitable for high-power switchboards and industrial distribution systems.
The ABB 1SDA125878R1 provides a robust solution where very high current capacity, dependable electronic protection and reliable short-time withstand performance are required. Its 4-pole configuration supports comprehensive protection in three-phase low-voltage distribution systems.
Key Advantages
- Very high 6300 A rated current for demanding low-voltage power distribution systems
- 4-pole configuration for comprehensive circuit protection including neutral
- Ekip Aware electronic release for intelligent protection and monitoring capabilities
- LI protection combining long-time and instantaneous protection functions
- E6.3V/f full-size Emax 3 platform for high-capacity power distribution applications
- WMP mobile-part configuration for compatible Emax 3 withdrawable assemblies
- 150 kA rated ultimate short-circuit breaking capacity at 440 V
- 100 kA rated short-time withstand current for 1 s
- Designed for demanding industrial, infrastructure and commercial electrical installations
Key Features
- Manufacturer: ABB
- Order code: 1SDA125878R1
- Product family: SACE Emax 3
- Breaker type: E6.3V/f 6300 Ekip Aware LI
- Rated current: 6300 A
- Number of poles: 4
- Electronic release: Ekip Aware
- Protection functions: LI
- Configuration: WMP
- Execution: Full-size mobile part of withdrawable circuit breaker
- Rated ultimate short-circuit breaking capacity: 150 kA at 440 V
- Rated short-time withstand current: 100 kA for 1 s
Reliable Emax 3 Protection for High-Current Systems
The ABB 1SDA125878R1 combines the high-capacity E6.3V/f Emax 3 platform with Ekip Aware electronic protection technology. Its LI protection arrangement provides long-time and instantaneous protection functions, supporting dependable protection of high-current electrical distribution circuits.
With a 6300 A rated current, 150 kA ultimate short-circuit breaking capacity at 440 V and 100 kA short-time withstand current for 1 s, the 1SDA125878R1 is suited to demanding switchgear applications where very high fault-current performance and reliable power distribution protection are required.
Typical Applications
- Industrial power distribution systems
- Large commercial electrical installations
- Main low-voltage switchboards
- High-capacity distribution boards
- Industrial process power systems
- Power generation and infrastructure installations
- Critical electrical distribution networks
- Withdrawable Emax 3 switchgear assemblies
