1SDA071955R1 ABB E6.2H/f 4000 Ekip Touch LSI 4p FHR Air Circuit Breaker

Why Choose the ABB E6.2H/f 4000 Ekip Touch LSI 4p FHR Air Circuit Breaker?

The ABB E6.2H/f 4000 Ekip Touch LSI 4p FHR, order code 1SDA071955R1, is a high-performance four-pole SACE Emax 2 air circuit breaker designed for protection and switching in demanding low-voltage power-distribution systems. This E6.2H/f full-size-neutral version combines a 4000 A rated uninterrupted current with the advanced Ekip Touch LSI electronic trip unit.

The E6.2H/f performance level provides a rated ultimate short-circuit breaking capacity of 100 kA at 440 V AC and a rated short-time withstand current of 100 kA for 1 s. Its Ekip Touch LSI trip unit provides long-time overload, selective short-time and instantaneous short-circuit protection, allowing effective protection coordination in high-capacity electrical distribution networks.

This model is a fixed four-pole air circuit breaker with a full-size neutral and rear horizontal (FHR) terminals. The combination of a fully rated neutral path, E6.2 high-current construction and touchscreen-based LSI protection makes the 1SDA071955R1 particularly suitable for main switchboards, industrial installations, data centres and infrastructure where high neutral loading and selective short-circuit protection must be accommodated.

Key Advantages

• High-performance ABB SACE Emax 2 E6.2H/f air circuit breaker for demanding low-voltage distribution systems.
• 4000 A rated uninterrupted current for high-capacity incoming and distribution circuits.
• Full-size neutral configuration for four-wire systems requiring a fully rated neutral pole.
• 100 kA ultimate short-circuit breaking capacity at 440 V AC.
• 100 kA short-time withstand current for 1 s supports selective protection in high-fault-level systems.
• Ekip Touch LSI electronic trip unit provides long-time, selective short-time and instantaneous protection.
• Short-time protection enables improved selectivity and coordination with downstream protective devices.
• Fixed construction with rear horizontal terminals supports integration into high-current switchboards.

Key Features

• ABB SACE Emax 2 E6.2H/f series.
• 4000 A rated uninterrupted current.
• Four-pole configuration.
• Full-size neutral.
• Ekip Touch LSI electronic trip unit.
• Long-time overload protection.
• Selective short-time short-circuit protection.
• Instantaneous short-circuit protection.
• Touchscreen interface for protection setting and supervision.
• 100 kA Icu at 440 V AC.
• 100 kA Icw for 1 s.
• Fixed execution.
• Rear horizontal (FHR) terminals.
• E6.2 frame engineered for high-current low-voltage distribution.
• Suitable for main incoming, busbar and high-capacity feeder protection.

Selective Full-Size-Neutral Protection for High-Current Distribution

High-current four-wire distribution systems can place substantial demands on the neutral conductor, particularly where unbalanced loads or harmonic-producing equipment are present. The ABB E6.2H/f combines a 4000 A rated uninterrupted current, full-size neutral configuration and 100 kA short-circuit performance at 440 V AC, providing a robust platform for major incoming circuits, busbars and high-capacity distribution feeders.

The Ekip Touch LSI trip unit adds selective short-time protection to the long-time and instantaneous functions, supporting more precise coordination between upstream and downstream protective devices. Its touchscreen interface simplifies configuration and supervision, making the 1SDA071955R1 well suited to installations requiring high current capacity, a fully rated neutral and advanced selective electronic protection.

Typical Applications

• Main incoming protection in high-current four-wire low-voltage switchboards.
• Industrial power-distribution systems.
• Large manufacturing and process facilities.
• Data centres and critical power infrastructure.
• Commercial buildings with substantial neutral loading.
• Transformer secondary and high-current feeder protection.
• High-capacity busbar distribution systems.
• Installations requiring a full-size neutral with selective LSI electronic protection.