1SDA072941R1 ABB E2.2S 1250 Ekip Dip LI 4p WMP Air Circuit Breaker

Why Choose the ABB 1SDA072941R1 E2.2S 1250 Ekip Dip LI 4p WMP Air Circuit Breaker?

The ABB 1SDA072941R1 is a SACE Emax 2 E2.2S four-pole air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. Rated at 1250 A, this withdrawable breaker combines the E2.2S frame with an Ekip Dip LI solid-state electronic protection release.

The Ekip Dip LI release provides long-time (L) overload protection and instantaneous (I) short-circuit protection. Long-time protection is adjustable from 0.4–1 × In, while instantaneous protection is adjustable from 1.5–15 × In, with settings configured using DIP switches.

The E2.2S performance level provides a rated ultimate short-circuit breaking capacity of 85 kA at 380–440 V AC and 66 kA at 500–690 V AC. Its four-pole withdrawable moving-part (WMP) construction supports maintainable switchboard designs and provides a robust solution for industrial, commercial and infrastructure power distribution.

Key Advantages

• High-performance ABB SACE Emax 2 E2.2S air circuit breaker.
• 1250 A rated current for demanding low-voltage distribution systems.
• Four-pole configuration for switching and circuit protection.
• Ekip Dip LI electronic release provides overload and instantaneous short-circuit protection.
• Protection settings configured conveniently through DIP switches.
• 85 kA ultimate short-circuit breaking capacity at 380–440 V AC.
• 66 kA ultimate short-circuit breaking capacity at 500–690 V AC.
• Withdrawable moving-part design supports efficient servicing and switchboard maintenance.

Key Features

• ABB SACE Emax 2 E2.2S frame.
• 1250 A rated current.
• Four-pole air circuit breaker configuration.
• Ekip Dip LI solid-state electronic protection release.
• Long-time overload protection adjustable from 0.4–1 × In.
• Instantaneous short-circuit protection adjustable from 1.5–15 × In.
• 85 kA Icu at 380–440 V AC.
• 66 kA Icu at 500–690 V AC.
• Rated operational voltage up to 690 V AC.
• Four auxiliary contacts and breaker open/closed position indication.
• Withdrawable moving-part construction for Emax 2 switchgear systems.

Reliable Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax 2 E2.2S provide high-current switching and protection for low-voltage distribution networks. The Ekip Dip LI electronic release combines adjustable long-time overload protection with instantaneous short-circuit protection, helping safeguard cables, switchgear and connected equipment against damaging overcurrent and fault conditions.

The E2.2S frame combines substantial short-circuit interruption capability with ABB's withdrawable Emax 2 architecture. This allows the breaker moving part to be withdrawn from its corresponding fixed section for servicing, making the 1SDA072941R1 well suited to switchboards where protection performance, maintainability and operational flexibility are important.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• Transformer secondary protection and switching.
• Manufacturing and process plant switchgear.
• High-current feeder and distribution protection.