1SDA072568R1 ABB E4.2H 4000 Ekip Hi-Touch LSI 3p WMP Air Circuit Breaker

Why Choose the ABB E4.2H 4000 Ekip Hi-Touch LSI 3p WMP Air Circuit Breaker?

The ABB 1SDA072568R1 is a high-performance SACE Emax 2 E4.2H air circuit breaker (ACB) designed for advanced protection, control and monitoring of demanding low-voltage electrical distribution systems. Rated at 4000 A, this three-pole breaker combines ABB’s high-breaking-capacity E4.2H frame with the advanced Ekip Hi-Touch LSI electronic trip unit.

As part of the ABB SACE Emax 2 air circuit breaker series, the E4.2H is engineered for high-current industrial switchboards, critical infrastructure, commercial installations and power distribution systems. The Ekip Hi-Touch trip unit provides sophisticated protection, measurement and monitoring capabilities, while its LSI functions provide long-time overload, short-time selective and instantaneous short-circuit protection.

The 1SDA072568R1 is a three-pole withdrawable mobile part (WMP) rated at 4000 A. The E4.2H performance level provides an ultimate short-circuit breaking capacity of 100 kA at 400–440 V AC and a rated short-time withstand current of 85 kA for 1 second, making it suitable for high-power installations with demanding prospective fault-current levels.

Key Advantages

• High-capacity 4000 A air circuit breaker for demanding low-voltage distribution systems.
• 100 kA ultimate short-circuit breaking capacity at 400–440 V AC for high-fault-level applications.
• Advanced Ekip Hi-Touch LSI electronic trip unit for sophisticated protection and monitoring.
• Long-time, short-time and instantaneous protection functions.
• 85 kA short-time withstand current for 1 second supports selective protection strategies.
• Withdrawable mobile-part design facilitates isolation, servicing and switchboard maintenance.
• Part of the modular ABB SACE Emax 2 platform for intelligent power distribution and system integration.

Key Features

• ABB SACE Emax 2 E4.2H series.
• 4000 A rated uninterrupted current.
• Three-pole configuration.
• H high-breaking-capacity performance level.
• 100 kA Icu at 400–440 V AC.
• 85 kA Icw for 1 second.
• Advanced Ekip Hi-Touch LSI electronic trip unit.
• LSI protection covering overload, selective short circuit and instantaneous short circuit.
• Advanced measurement and monitoring functionality through the Ekip Hi-Touch platform.
• Withdrawable mobile part (WMP) configuration for switchboard installations.
• Designed for integration with ABB Emax 2 communication, supervision and energy-management solutions.

Advanced Circuit Protection and Power Management

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage electrical systems against overloads and short circuits. The E4.2H performance level combines a 4000 A current rating with high short-circuit performance, making this breaker particularly suitable for installations where prospective fault currents are substantial and reliable selective protection is essential.

The Ekip Hi-Touch electronic trip unit extends the breaker beyond conventional circuit protection by providing advanced protection, measurement and monitoring capabilities. Its LSI functionality provides long-time overload, short-time selective and instantaneous short-circuit protection, while the modular Emax 2 architecture supports integration with modern automation, supervision and energy-management systems.

Typical Applications

• Main incoming protection for high-current low-voltage switchboards.
• Industrial power distribution systems.
• Critical power distribution installations.
• Data centres and high-availability electrical infrastructure.
• Large commercial and infrastructure projects.
• Manufacturing plants and process facilities.
• Transformer and distribution switchboards.
• Systems with high prospective short-circuit currents.