1SDA071793R1 ABB E4.2H 3200 Ekip Dip LSIG 4p FHR Air Circuit Breaker

Why Choose the ABB E4.2H 3200 Ekip Dip LSIG 4p FHR Air Circuit Breaker?

The ABB E4.2H 3200 Ekip Dip LSIG 4p FHR, order code 1SDA071793R1, is a high-performance four-pole Emax 2 air circuit breaker designed for protection and switching in demanding low-voltage power-distribution systems. Part of the ABB SACE Emax 2 E4.2 series, this fixed breaker combines a 3200 A rated uninterrupted current with the Ekip Dip LSIG electronic trip unit for comprehensive circuit protection.

The E4.2H performance level provides a rated ultimate short-circuit breaking capacity of 100 kA at 400/415 V AC. Its Ekip Dip LSIG electronic release provides long-time overload, selective short-time, instantaneous short-circuit and earth-fault protection, with protection thresholds adjustable through DIP switches for straightforward configuration and effective coordination within electrical distribution networks.

This model is a four-pole fixed circuit breaker equipped with rear flat horizontal (FHR) terminals. With a rated operational voltage of 690 V AC, rated insulation voltage of 1000 V AC and a rated short-time withstand current of 85 kA for 1 s, the 1SDA071793R1 is well suited to high-current industrial switchboards, infrastructure and critical power-distribution installations.

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.
• 100 kA ultimate breaking capacity at 400/415 V AC for robust short-circuit protection.
• Ekip Dip LSIG electronic trip unit provides comprehensive overload, short-circuit and earth-fault protection.
• Adjustable long-time, short-time, instantaneous and ground-fault thresholds support effective protection coordination.
• Protection settings configured directly through DIP switches.
• 85 kA short-time withstand current for 1 s supports demanding fault-level requirements.
• Four-pole fixed construction with rear flat horizontal terminals for switchboard integration.

Key Features

• ABB SACE Emax 2 E4.2H series.
• 3200 A rated uninterrupted current.
• Four-pole configuration.
• Ekip Dip LSIG electronic trip unit.
• Long-time overload, selective short-time, instantaneous and earth-fault protection.
• 0.4–1 × In overload protection adjustment.
• 0.6–10 × In selective short-circuit protection adjustment.
• 1.5–15 × In instantaneous short-circuit protection adjustment.
• 0.1–1 × In earth-fault protection adjustment.
• 690 V AC rated operational voltage.
• 1000 V AC rated insulation voltage.
• 100 kA Icu at 400/415 V AC.
• 85 kA Icu at 500/525 V AC and 690 V AC.
• 85 kA short-time withstand current for 1 s.
• Fixed (F) execution with rear flat horizontal terminals.
• Designed in accordance with IEC 60947-2.

Comprehensive Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E4.2H protect high-current low-voltage networks against overloads, short circuits and earth faults. The combination of a 3200 A current rating, 100 kA breaking capacity at 400/415 V AC and adjustable LSIG protection makes the 1SDA071793R1 particularly suitable for main distribution circuits where dependable fault interruption and selective coordination are essential.

The Ekip Dip LSIG trip unit provides electronic protection with independently configurable long-time, short-time, instantaneous and earth-fault functions. DIP-switch adjustment simplifies configuration while allowing protection characteristics to be matched to the installation, helping safeguard cables, busbars, transformers and other downstream equipment against damaging electrical faults.

Typical Applications

• Main incoming protection in low-voltage switchboards.
• Industrial power-distribution systems.
• Large manufacturing and process facilities.
• Commercial and infrastructure electrical installations.
• Data centres and critical power systems.
• Transformer and distribution feeder protection.
• High-current electrical distribution assemblies.
• Networks requiring high breaking capacity and earth-fault protection.