1SDA071958R1 ABB E6.2H/f 4000 Ekip Hi-Touch LSI 4p FHR Air Circuit Breaker

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

The ABB E6.2H/f 4000 Ekip Hi-Touch LSI 4p FHR, order code 1SDA071958R1, is a high-performance four-pole air circuit breaker (ACB) from the ABB SACE Emax 2 range. Designed for demanding low-voltage power distribution, it combines a 4000 A rated current with a fully rated fourth pole and high short-circuit performance for industrial, commercial and infrastructure switchboards.

This Emax 2 circuit breaker incorporates the Ekip Hi-Touch LSI solid-state electronic trip unit, providing long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. These LSI functions support accurate protection and selective coordination between upstream and downstream devices, helping isolate faults while maintaining continuity elsewhere in the electrical distribution system.

The E6.2H/f 4000 is a fixed four-pole breaker with full-size neutral and rear horizontal terminals. Its H performance level provides an ultimate short-circuit breaking capacity of 100 kA at 440 V AC together with a rated short-time withstand current of 100 kA for 1 s, making it suitable for high-current distribution systems with demanding fault-level and selectivity requirements.

Key Advantages

• High-capacity 4000 A air circuit breaker for demanding low-voltage power distribution.
• Four-pole, fully rated configuration with a full-size neutral pole.
• Advanced Ekip Hi-Touch LSI electronic trip unit for comprehensive overcurrent protection.
• Long-time, short-time and instantaneous protection supports selective system coordination.
• 100 kA ultimate short-circuit breaking capacity at 440 V AC.
• 100 kA short-time withstand current for 1 s supports high-fault-level distribution systems.
• Fixed installation for permanent integration into low-voltage switchboards.
• Rear horizontal terminals facilitate connection to high-current busbar systems.

Key Features

• ABB SACE Emax 2 E6.2H/f air circuit breaker.
• 4000 A rated uninterrupted current.
• Four-pole configuration with fully rated fourth pole.
• Ekip Hi-Touch LSI solid-state electronic trip unit.
• Long-time overload (L) protection.
• Short-time selective short-circuit (S) protection.
• Instantaneous short-circuit (I) protection.
• 100 kA ultimate short-circuit breaking capacity at 440 V AC.
• 100 kA rated short-time withstand current for 1 s.
• Fixed construction with rear horizontal terminals.
• Four auxiliary contacts fitted as standard.
• Circuit-breaker open/closed position indication.
• Designed for AC power distribution applications.

Fully Rated Four-Pole Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E6.2H/f provide protection, switching and isolation for high-current low-voltage electrical networks. The fully rated four-pole construction provides a full-size neutral pole, making this configuration suitable for installations where the neutral conductor must be switched and rated for the same current as the phase conductors.

The Ekip Hi-Touch LSI trip unit combines long-time overload, short-time selective and instantaneous short-circuit protection. Together with the breaker's 4000 A current rating, 100 kA breaking capacity at 440 V AC and 100 kA short-time withstand capability, the 1SDA071958R1 provides a robust solution for critical distribution systems requiring high fault performance and selective protection.

Typical Applications

• Industrial low-voltage main distribution switchboards.
• Manufacturing plants and large production facilities.
• Transformer protection and distribution systems.
• Generator and critical power distribution systems.
• Data centres and high-availability infrastructure.
• Commercial and infrastructure power distribution.
• High-fault-level incoming supply protection.
• Four-wire systems requiring a fully rated neutral pole.