1SDA072562R1 ABB E4.2H 4000 Ekip Dip LSI 3p WMP Air Circuit Breaker

Why Choose the ABB E4.2H 4000 Ekip Dip LSI 3p WMP Air Circuit Breaker?

The ABB E4.2H 4000 Ekip Dip LSI 3p WMP, order code 1SDA072562R1, is a high-performance SACE Emax 2 air circuit breaker moving part designed for protection and control of demanding low-voltage electrical distribution systems. As part of the ABB SACE Emax 2 E4.2 series, this three-pole withdrawable breaker combines a 4000 A rated uninterrupted current with the dependable Ekip Dip LSI solid-state electronic trip unit.

The Ekip Dip LSI release provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. These adjustable protection functions support effective selectivity and coordination in high-current distribution networks, helping protect cables, busbars, transformers and connected electrical equipment against damaging fault conditions.

The E4.2H performance level provides an ultimate short-circuit breaking capacity of 100 kA at 415 V AC and 85 kA at 690 V AC. This WMP configuration is the withdrawable moving part and is fitted with four auxiliary changeover contacts and breaker open/closed position indication, enabling convenient installation and maintenance when paired with a compatible Emax 2 E4.2 fixed part.

Key Advantages

• High-performance ABB SACE Emax 2 E4.2H air circuit breaker for demanding power distribution.
• 4000 A rated uninterrupted current for high-current electrical installations.
• Three-pole withdrawable design supports efficient inspection and maintenance.
• Reliable Ekip Dip LSI electronic trip unit with adjustable protection functions.
• 100 kA breaking capacity at 415 V AC for robust fault interruption.
• 85 kA short-time withstand current for 1 s.
• LSI protection supports selective coordination in complex electrical distribution networks.

Key Features

• ABB SACE Emax 2 E4.2H series.
• 4000 A rated uninterrupted current.
• Three-pole configuration.
• Withdrawable moving-part execution.
• Ekip Dip LSI solid-state electronic protection release.
• 100 kA Icu at 415 V AC.
• 85 kA Icu at 690 V AC.
• 85 kA short-time withstand current for 1 s.
• 690 V AC rated operational voltage.
• 12 kV rated impulse withstand voltage.
• Four auxiliary changeover contacts.
• Breaker open/closed position indication.

Selective Protection for High-Current Power Distribution

ABB SACE Emax 2 air circuit breakers are engineered to protect low-voltage electrical networks against overloads and short circuits while delivering dependable switching performance in demanding installations. The E4.2H frame combines a substantial 4000 A current rating with high short-circuit breaking and withstand capabilities for main distribution switchboards and critical power systems.

The Ekip Dip LSI electronic trip unit provides adjustable long-time, short-time and instantaneous protection. The inclusion of short-time delayed protection makes the breaker particularly useful where selective coordination between upstream and downstream protective devices is required, helping isolate faults while maintaining continuity in unaffected sections of the electrical network.

Typical Applications

• Industrial low-voltage main distribution switchboards.
• Transformer and power distribution systems.
• Power distribution centres and electrical substations.
• Manufacturing and process-industry installations.
• Data centres and critical power infrastructure.
• Large commercial and infrastructure electrical systems.
• High-current switchboards requiring selective and withdrawable circuit protection.