1SDA072569R1 ABB E4.2H 4000 Ekip Hi-Touch LSIG 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA072569R1 E4.2H 4000 Ekip Hi-Touch LSIG Air Circuit Breaker?

The ABB 1SDA072569R1 is a high-performance SACE Emax 2 E4.2H 4000 air circuit breaker moving part designed for demanding low-voltage power distribution systems. This three-pole configuration combines a 4000 A rated current with an advanced Ekip Hi-Touch LSIG solid-state electronic trip unit, providing comprehensive overload, short-circuit and ground-fault protection.

As part of the ABB SACE Emax 2 range, the E4.2H combines high-current switching capability with advanced electronic protection, measurement and monitoring functionality. The Ekip Hi-Touch LSIG release provides long-time, short-time, instantaneous and ground-fault protection functions, supporting sophisticated protection and selectivity requirements in industrial and infrastructure power systems.

This model is a 3-pole withdrawable moving part (WMP) with a 4000 A current rating and operation up to 690 V AC. Its E4.2H performance level provides a breaking capacity of 100 kA, making the breaker suitable for high-current switchboards where substantial prospective fault levels, advanced protection and maintainability must be accommodated.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 4000 A current rating for high-current industrial and infrastructure applications.
• Ekip Hi-Touch LSIG electronic trip unit with advanced protection, measurement and monitoring capabilities.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• High short-circuit performance with a 100 kA breaking capacity.
• Suitable for low-voltage systems operating up to 690 V AC.
• 3-pole withdrawable moving-part design supports efficient switchboard inspection, servicing and maintenance.

Key Features

• ABB SACE Emax 2 E4.2H frame.
• 4000 A rated current.
• 3-pole configuration.
• Ekip Hi-Touch LSIG solid-state electronic release.
• Long-time L overload protection.
• Short-time S short-circuit protection.
• Instantaneous I short-circuit protection.
• Ground-fault G protection.
• 690 V AC voltage rating.
• 100 kA breaking capacity.
• Fitted with 4 auxiliary contacts.
• Circuit-breaker open/closed position indication.
• Withdrawable moving part (WMP) configuration.

Advanced LSIG Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E4.2H provide switching and protection for high-current low-voltage distribution circuits. The electronic trip unit monitors electrical conditions and initiates circuit interruption when configured protection thresholds are exceeded, helping protect switchgear, conductors and connected equipment against overload, short-circuit and ground-fault currents.

The Ekip Hi-Touch LSIG release combines long-time overload protection with short-time, instantaneous and ground-fault protection alongside advanced electronic functionality. Together with the E4.2H frame and withdrawable architecture, the 1SDA072569R1 provides a capable solution for installations where high fault-current performance, comprehensive protection, selective coordination and maintainability are important.

Typical Applications

• Main incoming protection in high-current low-voltage switchboards.
• Industrial power distribution systems.
• Transformer protection and secondary distribution.
• High-current and high-fault-level feeder protection.
• Commercial and infrastructure electrical distribution.
• Power generation and critical power systems.
• Power distribution centres and large electrical installations.