1SDA056299R1 ABB E3S2500PR122/P-LI 2500A 4-Pole Air Circuit Breaker Moving Part

Why Choose the ABB E3S2500PR122/P-LI 2500A Air Circuit Breaker?

The ABB E3S2500PR122/P-LI is a high-performance 2500 A four-pole air circuit breaker moving part designed for reliable switching and overcurrent protection in demanding low-voltage power distribution systems. Part of the established ABB SACE Emax New Emax series, this E3S configuration combines high short-circuit performance with the advanced PR122/P-LI electronic overcurrent release.

The PR122/P-LI trip unit provides long-time overload and instantaneous short-circuit protection. These LI protection functions help safeguard cables, busbars, switchboards and connected electrical equipment against sustained overloads and severe short-circuit currents, providing dependable electronic protection for industrial, commercial and infrastructure distribution networks.

With a rated uninterrupted current of 2500 A, a four-pole withdrawable moving-part configuration and a PR122/P-LI R2500 release, ABB order code 1SDA056299R1 is designed for compatible SACE Emax withdrawable switchgear. The moving part is fitted with four auxiliary contacts and circuit-breaker open/closed position indication for effective monitoring and control integration.

Key Advantages

• High-capacity 2500 A air circuit breaker moving part for demanding low-voltage distribution.
• Four-pole withdrawable configuration suitable for three-phase four-wire power systems.
• Advanced PR122/P-LI R2500 electronic overcurrent release.
• LI functions provide long-time overload and instantaneous short-circuit protection.
• 75 kA E3S short-circuit performance for demanding low-voltage distribution applications.
• Withdrawable construction supports efficient inspection, servicing and breaker replacement.
• Four auxiliary contacts and open/closed position indication support switchboard monitoring and control.

Key Features

• ABB SACE Emax E3S series.
• 2500 A rated uninterrupted current.
• Four-pole circuit-breaker configuration.
• Withdrawable moving part (WMP).
• PR122/P-LI electronic trip unit.
• R2500 overcurrent release.
• Long-time overload protection (L).
• Instantaneous short-circuit protection (I).
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E3S2500 provide switching and overcurrent protection for high-current low-voltage distribution circuits. The electronic trip release monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect cables, busbars, switchboards and connected electrical equipment against damaging overload and short-circuit currents.

The PR122/P-LI release combines long-time overload protection with rapid instantaneous short-circuit protection. Together with the 2500 A four-pole E3S configuration, 75 kA short-circuit performance and service-friendly withdrawable construction, this moving part is well suited to main distribution and high-current feeder applications requiring dependable electronic protection.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Three-phase four-wire distribution networks.
• Manufacturing and process facilities.
• Commercial and infrastructure electrical installations.
• Incoming mains and high-current feeder protection.
• Transformer secondary distribution systems.
• Withdrawable ABB SACE Emax switchgear assemblies.