Why Choose the ABB 1SDA128835R1 Emax 3 Air Circuit Breaker?
The ABB 1SDA128835R1 is an advanced SACE Emax 3 low-voltage air circuit breaker designed for reliable switching, protection and control in demanding electrical distribution systems. Featuring the E2.3H 2500 platform, a 2500 A rated current, fixed three-pole construction, rear horizontal terminals and an Ekip Aware LSIG electronic release, it provides comprehensive protection for industrial and infrastructure power applications.
As part of the ABB Emax 3 family, the 1SDA128835R1 combines high-performance circuit protection with intelligent monitoring capabilities. The integrated Ekip Aware LSIG release provides adjustable protection functions for overloads, short circuits and earth faults while supporting modern power distribution requirements.
With its high breaking capability and robust fixed construction, the ABB 1SDA128835R1 is suitable for main switchboards, industrial distribution systems and electrical installations where dependable protection and high current switching performance are required.
Key Advantages
- High-performance ABB SACE Emax 3 air circuit breaker for low-voltage distribution.
- 2500 A rated current for large industrial and commercial electrical systems.
- Ekip Aware LSIG electronic protection for advanced circuit monitoring and fault protection.
- Three-pole fixed design for straightforward switchboard installation.
- Rear horizontal terminals for flexible panel integration.
- High short-circuit withstand capability for demanding power distribution applications.
Key Features
- ABB SACE Emax 3 series.
- E2.3H 2500 frame size.
- 2500 A rated uninterrupted current.
- Three-pole fixed circuit breaker.
- Ekip Aware LSIG electronic trip unit.
- Rear horizontal terminal configuration.
- Integrated long-time, short-time, instantaneous and earth-fault protection.
- Designed for IEC 60947-2 low-voltage circuit protection applications.
Advanced LSIG Protection for Industrial Power Systems
The ABB Ekip Aware LSIG electronic release provides coordinated protection against overloads, short-circuit currents and earth faults. The LSIG configuration combines long-time, short-time, instantaneous and earth-fault protection functions, allowing the breaker to be configured for different electrical distribution requirements.
The Emax 3 platform delivers intelligent protection, connectivity options and advanced diagnostics to support reliable operation of modern low-voltage electrical networks.
Typical Applications
- Industrial main distribution switchboards.
- Large commercial electrical installations.
- Manufacturing plants and production facilities.
- Power distribution assemblies.
- Energy infrastructure projects.
- High-current feeder protection systems.
