1SDA071875R1 ABB E6.2V 4000 Ekip Touch LSI 4p FHR Air Circuit Breaker 4000 A

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

The ABB E6.2V 4000 Ekip Touch LSI 4p FHR, order code 1SDA071875R1, is a high-performance four-pole air circuit breaker (ACB) for demanding low-voltage power distribution systems. Part of the ABB SACE Emax 2 family, it combines a 4000 A rated uninterrupted current with the Ekip Touch LSI electronic protection release and the very high short-circuit capability of the E6.2V frame.

The Ekip Touch LSI electronic trip unit provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. Its touch interface supports straightforward configuration of protection parameters, while the short-time function enables selective coordination with other protective devices in complex distribution networks.

Designed for systems operating at up to 690 V AC, the E6.2V 4000 provides an ultimate short-circuit breaking capacity of 150 kA at 400 V AC. This version is supplied as a fixed four-pole breaker with rear flat horizontal terminals, making it suitable for high-current industrial switchboards, infrastructure installations and critical power distribution systems.

Key Advantages

• High-performance ABB SACE Emax 2 E6.2V air circuit breaker for demanding low-voltage distribution systems.
• 4000 A rated uninterrupted current for high-current main distribution applications.
• Four-pole configuration for switching and protection of three phases and neutral.
• Advanced Ekip Touch LSI electronic trip unit with long-time, short-time and instantaneous protection.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC for installations with exceptionally high prospective fault currents.
• Adjustable overload protection across the 1600–4000 A range.
• Adjustable short-time protection across the 2400–40000 A range.
• Touch interface supports convenient protection configuration and monitoring.
• Fixed construction with rear flat horizontal terminals for robust switchboard integration.

Key Features

• ABB SACE Emax 2 E6.2V series.
• 4000 A rated uninterrupted current.
• Four-pole construction.
• Designed for low-voltage systems up to 690 V AC.
• V high-performance short-circuit class.
• 150 kA Icu at 400 V AC.
• Ekip Touch LSI electronic protection release.
• Long-time overload (L) protection.
• Short-time short-circuit (S) protection for selective coordination.
• Instantaneous short-circuit (I) protection.
• Overload protection adjustable from 1600–4000 A.
• Short-time short-circuit protection adjustable from 2400–40000 A.
• Instantaneous protection adjustable from 6000–60000 A.
• No integrated earth-fault protection in the LSI configuration.
• Fixed circuit-breaker construction.
• Rear flat horizontal main terminals.

Selective LSI Protection for High-Current Distribution

The Ekip Touch LSI release combines three complementary protection functions for high-current distribution. Long-time protection responds to sustained overloads, short-time protection introduces controlled fault-clearing delays to support selective coordination, and instantaneous protection rapidly disconnects severe short circuits. This combination can help isolate faults close to their source while maintaining continuity elsewhere in a properly coordinated distribution system.

Combined with the E6.2V frame's 4000 A current rating and 150 kA Icu at 400 V AC, the 1SDA071875R1 is particularly suitable for main switchboards and high-capacity distribution circuits where very high prospective fault currents and configurable electronic protection must be accommodated. The LSI configuration does not incorporate earth-fault protection, so earth-fault functionality should be provided separately where required by the protection scheme.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-fault-level industrial power distribution systems.
• Manufacturing and process facilities.
• Large commercial buildings and infrastructure installations.
• High-current feeder and distribution circuits.
• Transformer-fed low-voltage distribution systems.
• Systems requiring selective short-circuit coordination.
• Critical power distribution installations.
• Data centres and large technical facilities.
• High-capacity switchgear and power distribution assemblies.