1SDA072912R1 ABB E2.2S 1000 Ekip Dip LSI 4p WMP Air Circuit Breaker 1000 A

Why Choose the ABB E2.2S 1000 Ekip Dip LSI 4p WMP Air Circuit Breaker?

The ABB E2.2S 1000 Ekip Dip LSI 4p WMP, order code 1SDA072912R1, is a high-performance four-pole air circuit breaker (ACB) moving part designed for protection, switching and isolation in low-voltage electrical distribution systems. As part of the advanced ABB SACE Emax 2 series, it combines a 1000 A rated uninterrupted current with electronic overcurrent protection for demanding industrial, commercial and infrastructure power distribution applications.

This Emax 2 circuit breaker is equipped with the Ekip Dip LSI solid-state electronic trip unit, providing long-time, short-time and instantaneous overcurrent protection. These protection functions enable effective overload and short-circuit protection while supporting selective coordination with other protective devices within the electrical distribution system.

The E2.2S 1000 provides a rated ultimate short-circuit breaking capacity of 85 kA at 400–440 V AC and a rated short-time withstand current of 66 kA for 1 s. Its four-pole withdrawable moving-part (WMP) construction is designed for use with the corresponding Emax 2 fixed part, facilitating isolation, inspection, servicing and replacement in critical power distribution systems.

Key Advantages

• High-performance ABB SACE Emax 2 air circuit breaker for low-voltage power distribution.
• 1000 A rated uninterrupted current for high-current electrical installations.
• Four-pole configuration suitable for three-phase systems with neutral switching.
• Ekip Dip LSI electronic trip unit provides long-time, short-time and instantaneous protection.
• 85 kA ultimate short-circuit breaking capacity at 400–440 V AC.
• 66 kA short-time withstand current for 1 s.
• Withdrawable construction supports efficient isolation, inspection and maintenance.

Key Features

• ABB SACE Emax 2 E2.2S series.
• 1000 A rated uninterrupted current.
• Four-pole air circuit breaker moving part.
• Ekip Dip LSI solid-state electronic protection trip unit.
• Long-time, short-time and instantaneous overcurrent protection functions.
• 85 kA Icu at 400–440 V AC.
• 66 kA Icu at 500–690 V AC.
• 66 kA Icw for 1 s and 50 kA Icw for 3 s.
• Rated operational voltage up to 690 V AC.
• 100% neutral-pole current capability.
• Four auxiliary contacts with circuit-breaker open/closed position indication.
• Withdrawable moving-part construction for maintainable power distribution assemblies.

Selective Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB Emax 2 E2.2S provide switching, isolation and overcurrent protection for high-current low-voltage distribution circuits. The E2.2S performance level combines high short-circuit breaking capacity with substantial short-time withstand capability, helping protect switchboards, conductors and downstream electrical equipment during overload and fault conditions.

The Ekip Dip LSI trip unit provides electronic long-time protection against sustained overloads, short-time protection that supports selective coordination between protective devices and instantaneous protection against severe short circuits. Combined with the withdrawable Emax 2 architecture, these functions make the breaker particularly suitable for installations where protection coordination, high fault-breaking performance, 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 feeder circuit protection.
• Motor control centres and industrial switchgear assemblies.
• Distribution systems requiring selective short-circuit protection.
• Installations requiring high short-circuit breaking and withstand capacity.
• Withdrawable switchgear installations requiring convenient maintenance and isolation.