1SDA071784R1 ABB E4.2S 3200 Ekip Touch LI 4p F HR Air Circuit Breaker 3200 A

Why Choose the ABB E4.2S 3200 Ekip Touch LI 4p F HR Air Circuit Breaker?

The ABB E4.2S 3200 Ekip Touch LI 4p F HR, order code 1SDA071784R1, is a high-performance four-pole air circuit breaker (ACB) designed for protection and switching in demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 series, it combines a 3200 A rated uninterrupted current with the advanced Ekip Touch LI electronic protection release and the robust short-circuit performance of the E4.2S frame.

This fixed circuit breaker incorporates the Ekip Touch LI electronic trip unit, providing long-time overload and instantaneous short-circuit protection. The Ekip Touch platform combines configurable electronic protection with an intuitive interface and advanced measurement capabilities, making it well suited to modern switchboards where reliable circuit protection and visibility of electrical operating conditions are required.

The E4.2S 3200 is rated for operation at up to 690 V AC and provides an 85 kA ultimate short-circuit breaking capacity at 400 V AC. This version features a fixed four-pole construction with rear flat horizontal terminals and is fitted with four auxiliary changeover contacts, making it suitable for high-current industrial, commercial and infrastructure distribution assemblies.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 3200 A rated uninterrupted current for high-current electrical installations.
• Four-pole configuration for switching and protection of three phases and neutral.
• Advanced Ekip Touch LI electronic trip unit with long-time and instantaneous protection.
• 85 kA ultimate short-circuit breaking capacity at 400 V AC for dependable fault interruption.
• Adjustable overload protection from 1280–3200 A.
• Advanced touchscreen-based protection configuration and electrical monitoring.
• Fixed configuration with rear flat horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2S series.
• 3200 A rated uninterrupted current.
• Four-pole construction.
• 690 V AC rated operational voltage.
• S short-circuit performance level.
• 85 kA Icu at 400 V AC.
• Ekip Touch LI solid-state electronic protection release.
• Long-time overload and instantaneous short-circuit protection functions.
• Overload release adjustable from 1280–3200 A.
• Instantaneous short-circuit release adjustable from 4800–48000 A.
• Integrated touchscreen interface for configuration and monitoring.
• Four auxiliary changeover contacts.
• Open/closed circuit-breaker position indication.
• Fixed circuit-breaker construction.
• Rear flat horizontal terminals.
• Optional motor operating mechanism compatibility.

Advanced LI Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 protect high-current low-voltage distribution circuits against potentially damaging overload and short-circuit conditions. The E4.2S frame provides substantial current-carrying and fault-interruption capability, helping protect cables, busbars, switchgear and connected electrical equipment in large power distribution systems.

The Ekip Touch LI electronic trip unit combines long-time overload and instantaneous short-circuit protection with the advanced interface and monitoring capabilities of ABB's Ekip Touch platform. With a 3200 A current rating and 85 kA Icu at 400 V AC, the 1SDA071784R1 is particularly suited to main switchboards and high-current distribution circuits where dependable protection, configurable settings and straightforward system monitoring are required.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Manufacturing and process facilities.
• Large commercial buildings and infrastructure installations.
• High-current feeder and distribution circuits.
• Transformer-fed low-voltage distribution systems.
• Critical power distribution installations.
• Electrical switchgear and power distribution assemblies.