1SDA072952R1 ABB E2.2H 1250 Ekip Dip LSI 4p WMP Air Circuit Breaker 1250 A

Why Choose the ABB E2.2H 1250 Ekip Dip LSI 4p WMP Air Circuit Breaker?

The ABB E2.2H 1250 Ekip Dip LSI 4p WMP, order code 1SDA072952R1, is a high-performance four-pole air circuit breaker (ACB) moving part designed for protection, switching and isolation in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax 2 series, it combines a 1250 A rated current with the high-breaking-capacity E2.2H performance level for industrial, commercial and infrastructure power distribution applications.

This Emax 2 circuit breaker is fitted with the Ekip Dip LSI solid-state electronic trip unit, providing long-time, short-time and instantaneous overcurrent protection. The LSI protection configuration enables dependable overload and short-circuit protection while the short-time function supports selective coordination between upstream and downstream protective devices.

The E2.2H 1250 provides a 100 kA breaking capacity and an 85 kA short-time withstand capability, making it suitable for installations with substantial prospective fault currents. Its four-pole withdrawable moving-part (WMP) construction is designed for use with a compatible Emax 2 fixed part, supporting convenient isolation, inspection, servicing and replacement in critical power distribution systems.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for demanding low-voltage distribution systems.
• 1250 A rated current for high-current electrical installations.
• Four-pole configuration for three-phase systems requiring neutral switching.
• Ekip Dip LSI electronic trip unit provides long-time, short-time and instantaneous protection.
• 100 kA breaking capacity for installations with high prospective fault currents.
• 85 kA short-time withstand capability for robust fault-current performance.
• Short-time protection supports improved selectivity and coordination within distribution systems.
• Withdrawable construction supports efficient isolation, inspection and maintenance.

Key Features

• ABB SACE Emax 2 E2.2H series.
• 1250 A rated current.
• Four-pole air circuit breaker moving part.
• Ekip Dip LSI solid-state electronic protection release.
• Long-time overload, short-time and instantaneous short-circuit protection functions.
• 100 kA breaking capacity.
• 85 kA short-time withstand capability.
• Rated voltage of 690 V AC.
• High-breaking-capacity H performance level.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• Withdrawable moving-part construction for maintainable power distribution assemblies.

Selective High-Capacity Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax 2 E2.2H provide switching, isolation and electronic overcurrent protection for high-current low-voltage distribution circuits. The H performance level is engineered for demanding installations with substantial prospective fault currents, combining a 100 kA breaking capacity with an 85 kA short-time withstand capability.

The Ekip Dip LSI trip unit provides electronic long-time protection against sustained overloads, short-time protection for fault coordination and instantaneous protection against severe short circuits. Combined with the withdrawable Emax 2 architecture, these capabilities make the breaker well suited to installations where high fault-current performance, protection selectivity, system availability and straightforward maintenance are important.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial electrical distribution systems.
• Commercial and infrastructure power distribution.
• Main incoming and high-current feeder protection.
• Industrial switchgear and power distribution assemblies.
• Distribution systems requiring selective short-circuit protection.
• Installations with high prospective short-circuit currents.
• Withdrawable switchgear systems requiring convenient maintenance and isolation.