1SDA056728R1 ABB E3L2000 PR121/P-LI 2000A 4P Air Circuit Breaker

Why Choose the ABB E3L2000 PR121/P-LI 2000A 4P Air Circuit Breaker?

The ABB E3L2000 PR121/P-LI, order code 1SDA056728R1, is a high-performance SACE Emax E3L air circuit breaker designed for protection and switching of high-current low-voltage electrical distribution systems. Rated at 2000 A, this four-pole fixed circuit breaker combines the proven Emax platform with an electronic PR121/P-LI overcurrent release.

This configuration is supplied as a four-pole fixed circuit breaker with rear horizontal main terminals. The PR121/P-LI electronic protection unit provides long-time overload and instantaneous short-circuit protection, making the breaker suitable for protecting feeders, switchboards and other critical distribution circuits where dependable high-current protection is required.

With a rated operational voltage of up to 690 V AC and an ultimate short-circuit breaking capacity of 130 kA at 400 V AC, the E3L2000 provides robust fault interruption for demanding industrial and commercial power systems. This version is also fitted with four auxiliary change-over contacts and circuit-breaker open/closed position indication for integration with control and monitoring systems.

Key Advantages

• High-current 2000 A SACE Emax air circuit breaker for low-voltage distribution.
• Four-pole configuration provides switching and protection across four conductors.
• PR121/P-LI electronic overcurrent release provides long-time and instantaneous protection functions.
• Fixed installation for permanent switchboard applications.
• Rear horizontal terminals support practical busbar and switchboard connections.
• High short-circuit performance with up to 130 kA Icu at 400 V AC.
• Rated for operation at voltages up to 690 V AC.
• Four auxiliary change-over contacts support status signalling and control-system integration.

Key Features

• ABB SACE Emax E3L series.
• 2000 A rated current.
• Four-pole circuit-breaker configuration.
• PR121/P-LI R2000 electronic overcurrent release.
• Long-time overload and instantaneous short-circuit protection.
• Fixed circuit-breaker construction.
• Rear horizontal main terminals.
• Rated operational voltage up to 690 V AC.
• 130 kA ultimate short-circuit breaking capacity at 400 V AC.
• Four auxiliary change-over contacts and open/closed position indication.

Reliable High-Current Protection for Electrical Distribution

Air circuit breakers such as the ABB SACE Emax E3L are designed to interrupt high fault currents while providing dependable overload and short-circuit protection for low-voltage distribution systems. The electronic PR121/P release continuously supports protection of the connected circuit, helping limit damage to cables, busbars and downstream electrical equipment when abnormal current conditions occur.

The E3L2000 PR121/P-LI configuration combines a 2000 A current rating, four-pole construction and high short-circuit breaking performance with fixed rear-horizontal connections. This makes it particularly suitable for integration into industrial switchboards, main distribution assemblies and other high-capacity power distribution installations.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure distribution boards.
• High-current feeder protection.
• Manufacturing and process-industry switchgear.
• Generator and transformer distribution systems.
• Electrical installations requiring four-pole switching and protection.