1SDA071778R1 ABB E4.2N 3200 Ekip Hi-Touch LSI 4p FHR Air Circuit Breaker

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

The ABB E4.2N 3200 Ekip Hi-Touch LSI 4p FHR, order code 1SDA071778R1, is a high-performance four-pole Emax 2 air circuit breaker designed for protection, switching, measurement and monitoring in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax 2 E4.2 series, it combines a 3200 A rated current with the advanced Ekip Hi-Touch LSI electronic trip unit.

The E4.2N performance level provides a rated ultimate short-circuit breaking capacity of 66 kA across a broad operating-voltage range, including at 400/415 V AC. Its Ekip Hi-Touch LSI trip unit provides adjustable long-time overload, selective short-time and instantaneous short-circuit protection, giving engineers comprehensive control over protection settings and coordination within complex electrical networks.

This model is a four-pole fixed circuit breaker with rear horizontal terminals and is rated for operation up to 690 V AC. The Ekip Hi-Touch platform incorporates advanced measurement capabilities, including Ekip Measuring Pro and network analysis functionality, making the breaker particularly suitable for installations requiring both dependable protection and detailed supervision of electrical-system performance.

Key Advantages

• Advanced ABB SACE Emax 2 air circuit breaker for high-current low-voltage distribution.
• 3200 A rated uninterrupted current for demanding industrial and infrastructure systems.
• 66 kA ultimate breaking capacity at 400/415 V AC for dependable short-circuit protection.
• Ekip Hi-Touch LSI electronic trip unit provides comprehensive adjustable protection.
• Long-time, selective short-time and instantaneous protection functions support effective system coordination.
• Integrated Ekip Measuring Pro functionality supports advanced electrical measurement.
• Integrated network analysis capabilities provide enhanced monitoring of power quality and system conditions.
• Four-pole fixed construction with rear horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2N series.
• 3200 A rated current.
• Four-pole configuration.
• Ekip Hi-Touch LSI electronic trip unit.
• Long-time, short-time and instantaneous protection functions.
• Overload protection adjustment range: 1280–3200 A.
• Selective short-circuit protection adjustment range: 1920–32000 A.
• Instantaneous short-circuit protection adjustment range: 4800–48000 A.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 66 kA Icu at 400/415 V AC.
• 66 kA rated short-time withstand current for 1 s.
• Integrated Ekip Measuring Pro measurement functionality.
• Integrated Network Analyzer functionality.
• Fixed (F) execution with rear horizontal terminals.
• Supplied with four auxiliary contacts for circuit-breaker open/closed position signalling.

Advanced Protection and Monitoring for High-Current Distribution

Air circuit breakers such as the ABB E4.2N protect high-current low-voltage networks against overload and short-circuit conditions while providing the switching performance required by major distribution circuits. The 3200 A current rating, 66 kA breaking capacity and configurable LSI protection functions make the 1SDA071778R1 well suited to installations where selective coordination and continuity of service are important.

The Ekip Hi-Touch trip unit extends conventional circuit protection with sophisticated measurement and network-analysis capabilities. This enables electrical engineers to combine protection, system supervision and power-quality monitoring within the Emax 2 platform, helping improve visibility and management of critical electrical distribution networks.

Typical Applications

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