1SDA071785R1 ABB E4.2S 3200 Ekip Touch LSI 4p F HR Air Circuit Breaker 3200 A

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

The ABB E4.2S 3200 Ekip Touch LSI 4p F HR, order code 1SDA071785R1, 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 current with the advanced Ekip Touch LSI electronic protection release and robust short-circuit performance.

This fixed circuit breaker incorporates the Ekip Touch LSI solid-state electronic trip unit, providing long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. Adjustable electronic protection settings support effective coordination throughout complex distribution networks, while the Ekip Touch interface provides convenient configuration and monitoring of the breaker.

Rated for operation at up to 690 V AC, the E4.2S 3200 provides an 85 kA ultimate short-circuit breaking capacity at 400/415 V AC and 66 kA at 690 V AC. This version features a fixed four-pole construction with rear horizontal terminals and four auxiliary 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 current for high-current electrical installations.
• Four-pole configuration for switching and protection of three phases and neutral.
• Advanced Ekip Touch LSI electronic trip unit with long-time, short-time and instantaneous protection.
• 85 kA Icu at 400/415 V AC for dependable interruption of high prospective fault currents.
• 66 kA Icu at 690 V AC for demanding higher-voltage low-voltage distribution networks.
• Adjustable protection settings support selective coordination throughout the electrical system.
• Fixed configuration with rear horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2S series.
• 3200 A rated current.
• Four-pole construction.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50/60 Hz operating frequency.
• S short-circuit performance level.
• 85 kA Icu at 400/415 V AC.
• 85 kA Icu at 440 V AC.
• 66 kA Icu at 690 V AC.
• 66 kA short-time withstand current for 1 s.
• Ekip Touch LSI solid-state electronic protection release.
• Long-time overload, short-time selective and instantaneous short-circuit protection functions.
• Overload protection adjustable from 0.4–1 × In.
• Instantaneous protection adjustable from 1.5–15 × In.
• Touch-sensitive display for protection configuration.
• Four auxiliary contacts with open/closed circuit-breaker position indication.
• Fixed circuit-breaker construction with rear horizontal terminals.

Advanced LSI 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 combines substantial current-carrying capability with high fault-interruption performance, helping protect cables, busbars, switchgear and connected electrical equipment in large power distribution systems.

The Ekip Touch LSI electronic trip unit combines long-time overload, short-time selective and instantaneous short-circuit protection, allowing protection settings to be coordinated with upstream and downstream devices. With a 3200 A current rating, 85 kA Icu at 400/415 V AC and 66 kA Icu at 690 V AC, the 1SDA071785R1 is particularly suited to main switchboards and high-current distribution circuits requiring configurable electronic protection and dependable fault interruption.

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 high-capacity power distribution assemblies.