1SDA071834R1 ABB E4.2S 4000 Ekip Touch LI 4p FHR Air Circuit Breaker

Why Choose the ABB E4.2S 4000 Ekip Touch LI 4p FHR Air Circuit Breaker?

The ABB E4.2S 4000 Ekip Touch LI 4p FHR, order code 1SDA071834R1, is a high-performance four-pole SACE Emax 2 air circuit breaker designed for protection, switching and monitoring in high-current low-voltage electrical distribution systems. Part of the ABB SACE Emax 2 E4.2 series, this fixed breaker combines a 4000 A rated uninterrupted current with the advanced Ekip Touch LI solid-state electronic trip unit.

The E4.2S performance level provides a rated ultimate short-circuit breaking capacity of 85 kA at 400/415 V AC. Its Ekip Touch LI trip unit provides long-time overload and instantaneous short-circuit protection, combining configurable electronic protection with the intuitive touchscreen-based Ekip Touch platform.

This version is a four-pole fixed air circuit breaker equipped with rear horizontal (FHR) terminals. It is supplied with four auxiliary change-over contacts and circuit-breaker open/closed position indication, providing a robust solution for main distribution switchboards, industrial power systems and other installations requiring dependable high-current circuit protection.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage power distribution.
• 4000 A rated uninterrupted current for high-current electrical installations.
• 85 kA ultimate breaking capacity at 400/415 V AC for robust short-circuit protection.
• Ekip Touch LI electronic trip unit provides long-time overload and instantaneous short-circuit protection.
• Touchscreen-based Ekip interface supports intuitive protection configuration and system monitoring.
• Four-pole construction supports switching and protection in four-conductor distribution systems.
• Four auxiliary change-over contacts support circuit-breaker status signalling.
• Fixed construction with rear horizontal terminals for integration into low-voltage switchboards.

Key Features

• ABB SACE Emax 2 E4.2S series.
• 4000 A rated uninterrupted current.
• Four-pole configuration.
• Ekip Touch LI solid-state electronic trip unit.
• Long-time overload and instantaneous short-circuit protection.
• 1600–4000 A overload release setting range.
• 85 kA rated ultimate short-circuit breaking capacity at 400/415 V AC.
• Designed for AC low-voltage distribution applications.
• Fixed (F) execution.
• Rear horizontal (FHR) main terminals.
• Four auxiliary change-over contacts.
• Circuit-breaker open/closed position indication.
• Robust E4.2 frame designed for high-current power-distribution applications.

Reliable High-Current Protection for Power Distribution

Air circuit breakers such as the ABB E4.2S protect high-current low-voltage distribution systems against potentially damaging overload and short-circuit conditions. The combination of a 4000 A current rating, 85 kA breaking capacity at 400/415 V AC and electronic LI protection makes the 1SDA071834R1 suitable for major distribution circuits where dependable fault interruption and continuity of service are important.

The Ekip Touch LI trip unit provides electronic long-time and instantaneous protection through ABB's advanced Ekip platform. This enables protection settings to be matched to the electrical installation while providing an intuitive interface for commissioning and supervision, helping protect cables, busbars, transformers and other critical distribution equipment.

Typical Applications

• Main incoming protection in low-voltage switchboards.
• Industrial power-distribution systems.
• Large manufacturing and process facilities.
• Commercial and infrastructure electrical installations.
• Data centres and critical power systems.
• Transformer and high-current feeder protection.
• Large electrical distribution assemblies.
• Installations requiring high-current switching and electronic overload protection.