1SDA056771R1 ABB E3L2500PR122/P-LI 2500A 3-Pole Air Circuit Breaker Moving Part

Why Choose the ABB E3L2500PR122/P-LI 2500A Air Circuit Breaker?

The ABB E3L2500PR122/P-LI, order code 1SDA056771R1, is a high-performance 2500 A three-pole air circuit breaker moving part designed for reliable protection and switching in demanding low-voltage electrical distribution systems. As part of the proven ABB SACE Emax E3 series, this withdrawable breaker configuration combines the E3L high-breaking-capacity platform with the advanced PR122/P electronic overcurrent protection release.

The breaker is equipped with an ABB PR122/P-LI R2500 electronic overcurrent release, providing long-time overload and instantaneous short-circuit protection. This combination delivers dependable circuit protection for industrial switchboards, transformer secondary systems, main distribution assemblies and other installations requiring high-current switching and fault protection.

With a rated current of 2500 A, a three-pole configuration and a withdrawable moving-part design, the E3L2500PR122/P-LI is engineered for installations where maintainability and service continuity are important. The E3L 2500 platform provides an ultimate short-circuit breaking capacity of 130 kA at 415 V AC, while the breaker moving part is fitted with four auxiliary contacts and open/closed position indication.

Key Advantages

• High-capacity 2500 A air circuit breaker moving part for low-voltage power distribution.
• Three-pole withdrawable configuration supports convenient inspection, servicing and replacement.
• Advanced PR122/P-LI R2500 electronic protection release for overload and instantaneous short-circuit protection.
• High 130 kA ultimate short-circuit breaking capacity at 415 V AC.
• Fitted with four auxiliary contacts for breaker status and control circuits.
• Integrated open/closed position indication supports remote monitoring and signalling.
• Part of the established ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E3L air circuit breaker platform.
• 2500 A rated current.
• Three-pole construction.
• Withdrawable moving part (W MP) configuration.
• PR122/P-LI R2500 electronic overcurrent release.
• Long-time overload and instantaneous short-circuit protection functions.
• 130 kA Icu at 415 V AC.
• 15 kA rated short-time withstand current for 1 s for the E3L 2500 frame.
• Four auxiliary contacts for status and control signalling.
• Breaker open/closed position indication.
• Designed for use with the corresponding E3L withdrawable fixed part.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3 protect low-voltage electrical networks against damaging overcurrents while providing dependable switching and isolation of high-current circuits. Their robust construction, high breaking performance and electronic protection technology make them particularly suitable for main incomers, transformer secondaries, large feeders and other critical distribution circuits.

The PR122/P electronic release monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded. In this LI configuration, long-time protection responds to sustained overload conditions while instantaneous protection provides rapid interruption of severe short-circuit faults.

Typical Applications

• Main low-voltage switchboards and distribution boards.
• Industrial power distribution systems.
• Transformer secondary and main incomer protection.
• High-current feeder circuits.
• Manufacturing and process plant electrical systems.
• Commercial buildings and infrastructure power distribution.