1SDA056740R1 ABB E3L2000PR122/P-LSI 2000A 3-Pole Air Circuit Breaker Moving Part

Why Choose the ABB E3L2000PR122/P-LSI 2000A Air Circuit Breaker?

The ABB E3L2000PR122/P-LSI, order code 1SDA056740R1, is a high-performance 2000 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 breaking-performance class with the advanced PR122/P electronic overcurrent protection release.

The breaker is equipped with an ABB PR122/P-LSI electronic overcurrent release, providing long-time overload, short-time selective short-circuit and instantaneous short-circuit protection. This combination provides comprehensive overcurrent protection while supporting selective coordination in industrial switchboards, main distribution assemblies and other critical high-current electrical installations.

With a rated current of 2000 A, a three-pole configuration and a withdrawable moving-part design, the E3L2000PR122/P-LSI is engineered for installations where maintainability, protection selectivity and service continuity are important. The E3L version provides an ultimate short-circuit breaking capacity of 130 kA at 400 V AC and is fitted with four auxiliary contacts plus breaker open/closed position indication.

Key Advantages

• High-capacity 2000 A air circuit breaker moving part for low-voltage power distribution.
• Three-pole withdrawable configuration supports convenient inspection, maintenance and replacement.
• Advanced PR122/P-LSI electronic protection release for overload and short-circuit protection.
• LSI protection functions support selective coordination of distribution networks.
• High 130 kA ultimate short-circuit breaking capacity at 400 V AC.
• Fitted with four auxiliary contacts and breaker open/closed position indication.
• Part of the established ABB SACE Emax air circuit breaker platform.

Key Features

• ABB SACE Emax E3L air circuit breaker platform.
• 2000 A rated current.
• Three-pole construction.
• Withdrawable moving part (W MP) configuration.
• PR122/P-LSI electronic overcurrent release.
• Long-time, short-time and instantaneous overcurrent protection functions.
• 130 kA Icu at 400 V AC, 50 Hz.
• 690 V AC rated operational voltage.
• Overload release adjustment range of 800–2000 A.
• Short-time delayed short-circuit protection adjustment capability.
• Instantaneous short-circuit protection adjustment capability.
• Four auxiliary contacts and breaker open/closed position indication.
• Optional motor operating mechanism compatibility.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3 are designed to protect low-voltage electrical networks against damaging overcurrents while providing reliable switching and isolation of high-current circuits. Their robust construction and electronic protection releases make them particularly suitable for main incomers, feeders and other critical circuits in industrial and commercial distribution systems.

The PR122/P release electronically monitors circuit current and executes the required protection functions when abnormal operating conditions occur. In this LSI configuration, long-time protection guards against sustained overloads, short-time protection supports selective coordination during short circuits, and instantaneous protection provides rapid intervention during severe fault conditions.

Typical Applications

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