1SDA071798R1 ABB E4.2H 3200 Ekip Hi-Touch LSI 4p FHR Air Circuit Breaker

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

The ABB 1SDA071798R1 is a high-performance Emax 2 air circuit breaker (ACB) designed for advanced protection, measurement and control in demanding low-voltage electrical distribution systems. Identified as the E4.2H 3200 Ekip Hi-Touch LSI 4p FHR, this four-pole fixed circuit breaker combines a 3200 A rated current with ABB’s advanced Ekip Hi-Touch electronic trip unit.

As part of the ABB SACE Emax 2 series, the E4.2H provides high short-circuit performance together with sophisticated electronic protection and measurement capabilities. The Ekip Hi-Touch LSI release provides long-time overload, short-time selective short-circuit and instantaneous short-circuit protection, while integrated Ekip Measuring Pro and Network Analyzer functionality supports detailed monitoring of electrical parameters and power quality.

With a rated operational voltage of up to 690 V AC and an ultimate short-circuit breaking capacity of 100 kA at 400–440 V AC, the 1SDA071798R1 is engineered for high-current installations where dependable fault interruption and advanced monitoring are required. Its four-pole fixed construction and rear horizontal terminals make it suitable for integration into industrial switchboards and critical low-voltage distribution assemblies.

Key Advantages

• High-performance ABB Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 3200 A rated current for high-current industrial and infrastructure applications.
• 100 kA Icu at 400–440 V AC for installations with substantial prospective fault currents.
• Four-pole configuration for switching and protection of three phases and neutral.
• Advanced Ekip Hi-Touch LSI electronic trip unit for sophisticated overload and short-circuit protection.
• Integrated Ekip Measuring Pro and Network Analyzer functionality for electrical measurement and power-quality analysis.
• Fixed construction with rear horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2H series.
• 3200 A rated current.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 50 / 60 Hz operating frequency.
• 100 kA Icu at 380–440 V AC.
• 85 kA Icu at 500–690 V AC.
• Ekip Hi-Touch LSI solid-state electronic protection release.
• Long-time, short-time selective and instantaneous protection functions.
• Ekip Measuring Pro integrated measurement functionality.
• Network Analyzer functionality for advanced electrical monitoring.
• Touchscreen interface for protection settings and operating information.
• 4-pole fixed circuit breaker configuration.
• Rear horizontal main terminals.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Advanced Protection, Measurement and Power Analysis

Air circuit breakers such as the ABB Emax 2 E4.2H provide switching, isolation and protection for high-current low-voltage electrical systems. The E4.2H performance level combines a 3200 A current rating with an ultimate breaking capacity of up to 100 kA, making it suitable for critical distribution points where high fault currents can occur.

The Ekip Hi-Touch LSI electronic trip unit provides adjustable long-time overload, short-time selective and instantaneous short-circuit protection. Integrated Ekip Measuring Pro and Network Analyzer capabilities extend the breaker beyond conventional circuit protection by providing detailed electrical measurement and power-quality analysis for modern energy-management and condition-monitoring applications.

Typical Applications

• Main incomer protection in low-voltage switchboards.
• Industrial power distribution systems.
• Transformer and installation protection.
• Manufacturing and process plants.
• Data centres and critical power installations.
• Commercial and infrastructure electrical distribution.
• Energy monitoring and power-quality applications.
• High-current installations requiring advanced protection and measurement.