1SDA071808R1 ABB E4.2V 3200 Ekip Hi-Touch LSI 4p FHR Air Circuit Breaker

Why Choose the ABB E4.2V 3200 Ekip Hi-Touch LSI 4p FHR Air Circuit Breaker?

The ABB E4.2V 3200 Ekip Hi-Touch LSI 4p FHR, order code 1SDA071808R1, is a high-performance four-pole Emax 2 air circuit breaker designed for protection, switching, measurement and power management in demanding low-voltage electrical distribution systems. Part of the advanced ABB SACE Emax 2 E4.2 series, it combines a 3200 A rated uninterrupted current with the sophisticated Ekip Hi-Touch LSI electronic trip unit.

The E4.2V performance level provides exceptional short-circuit protection, including a rated ultimate short-circuit breaking capacity of 150 kA at 400 V AC. The Ekip Hi-Touch LSI trip unit provides adjustable long-time overload, selective short-time and instantaneous short-circuit protection, enabling precise protection coordination throughout complex industrial and infrastructure power-distribution networks.

This version is a four-pole fixed circuit breaker equipped with rear flat horizontal (FHR) terminals and four auxiliary contacts for open/closed position signalling. With a rated voltage of 690 V AC and advanced Ekip Hi-Touch functionality, the 1SDA071808R1 is particularly suited to high-current switchboards where reliable fault protection, electrical measurement and integration with modern power-management systems are required.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution.
• 3200 A rated uninterrupted current for high-current industrial and infrastructure installations.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• Ekip Hi-Touch LSI electronic trip unit provides advanced adjustable circuit protection.
• Long-time, selective short-time and instantaneous protection functions support effective system coordination.
• Advanced measurement and monitoring capabilities support modern power-management applications.
• Four-pole configuration provides switching and protection across four conductors.
• Rear flat horizontal terminals provide a practical connection arrangement for switchboard installation.

Key Features

• ABB SACE Emax 2 E4.2V series.
• 3200 A rated uninterrupted current.
• Four-pole configuration.
• Ekip Hi-Touch LSI solid-state electronic trip unit.
• Long-time overload, selective short-time and instantaneous short-circuit protection.
• 1280–3200 A overload release adjustment range.
• 1920–32000 A short-time delayed short-circuit adjustment range.
• 4800–48000 A instantaneous short-circuit adjustment range.
• 690 V AC rated voltage.
• 150 kA Icu at 400 V AC, 50 Hz.
• Fixed (F) execution.
• Rear flat horizontal (FHR) terminals.
• Four auxiliary change-over contacts for circuit-breaker status signalling.
• Switched-off indication provided.
• Optional motor operator for electrically operated applications.

Advanced Protection and Power Management for Critical Distribution

Air circuit breakers such as the ABB E4.2V protect high-current low-voltage distribution networks against overload and short-circuit conditions while providing the switching performance required for main distribution circuits. The combination of a 3200 A current rating, 150 kA breaking capacity at 400 V AC and configurable LSI protection makes the 1SDA071808R1 particularly suitable for installations where fault discrimination, selective coordination and continuity of service are important.

The Ekip Hi-Touch LSI platform extends circuit protection with sophisticated measurement, monitoring and connectivity capabilities. This enables Emax 2 breakers to form part of modern automation and energy-management architectures while providing precise electronic protection for cables, busbars, transformers and other critical electrical equipment.

Typical Applications

• Main incoming protection in low-voltage switchboards.
• Industrial power-distribution systems.
• Large manufacturing and process facilities.
• Data centres and critical power infrastructure.
• Commercial and infrastructure electrical installations.
• Transformer and distribution feeder protection.
• High-current electrical distribution assemblies.
• Power-management and energy-monitoring systems.