Why Choose the ABB 1SDA125844R1 SACE Emax 3 E6.3H/f 4000 Air Circuit Breaker?
The ABB 1SDA125844R1 is a high-performance withdrawable air circuit breaker (ACB) moving part from the advanced ABB SACE Emax 3 series, designed to provide reliable protection, switching and control for high-capacity low-voltage electrical distribution systems. Configured as an E6.3H/f 4000 circuit breaker moving part, it is engineered for demanding industrial, infrastructure and energy applications requiring dependable protection, intelligent monitoring and flexible maintenance solutions.
This withdrawable circuit breaker moving part incorporates advanced electronic protection technology through the integrated Ekip Aware LSI trip unit. The SACE Emax 3 platform provides intelligent protection functions, monitoring capabilities and efficient operation for modern electrical installations.
With a rated current of 4000 A, a four-pole configuration with 100% neutral, and a rated ultimate short-circuit breaking capacity of 100 kA at 415 V AC, the ABB 1SDA125844R1 is suitable for protecting high-capacity low-voltage networks, industrial switchboards and critical electrical infrastructure. This product is supplied as the withdrawable moving part only (WMP); the compatible fixed part must be ordered separately.
Key Advantages
- ABB SACE Emax 3 air circuit breaker moving part designed for high-capacity low-voltage protection applications.
- 4000 A rated current suitable for demanding electrical distribution systems.
- 100 kA breaking capacity at 415 V AC for reliable short-circuit protection.
- Integrated Ekip Aware LSI trip unit for comprehensive electrical protection.
- Four-pole design with 100% neutral for enhanced neutral conductor protection.
- Withdrawable moving part (WMP) enables easier inspection, replacement and maintenance.
Key Features
- ABB SACE Emax 3 series air circuit breaker.
- E6.3H/f 4000 frame configuration.
- 4-pole circuit breaker design with 100% neutral.
- 4000 A rated uninterrupted current (In).
- 100 kA Icu breaking capacity at 415 V AC.
- Ekip Aware LSI trip unit providing long-time, short-time and instantaneous protection functions.
- Withdrawable version for flexible installation and maintenance.
- Moving part only (WMP); fixed part supplied separately.
Reliable Protection for Modern Electrical Distribution Systems
Air circuit breakers such as the ABB SACE Emax 3 provide dependable protection against electrical faults while enabling safe switching and maintenance operations. Withdrawable designs allow the breaker mechanism to be removed from the switchgear assembly, simplifying inspection, servicing and replacement procedures.
The SACE Emax 3 platform is designed for modern energy distribution applications where safety, efficiency and intelligent system integration are essential. Its advanced trip technology, high breaking performance and flexible withdrawable configuration support the requirements of industrial facilities and large-scale electrical installations.
Typical Applications
- High-capacity industrial power distribution systems.
- Main switchboards and electrical power centres.
- Large manufacturing and processing facilities.
- Energy and infrastructure electrical systems.
- Critical power protection installations.
- Installations requiring withdrawable circuit breaker solutions.
