1SDA055923R1 ABB E2N2000 PR122/P-LI 2000A 3-Pole Air Circuit Breaker

Why Choose the ABB E2N2000 PR122/P-LI 2000A Air Circuit Breaker?

The ABB E2N2000 PR122/P-LI, order code 1SDA055923R1, is a high-performance three-pole fixed air circuit breaker (ACB) designed for protection and switching in low-voltage electrical distribution systems. As part of the proven ABB SACE Emax series, this E2N circuit breaker combines a 2000 A rated current with the advanced PR122/P electronic overcurrent release for dependable protection in industrial, commercial and infrastructure power installations.

This configuration is supplied as a fixed three-pole circuit breaker with horizontal rear terminals. The integrated PR122/P-LI electronic overcurrent release provides long-time and instantaneous protection functions, helping protect electrical networks against sustained overloads and high-level short-circuit faults.

With a rated current of 2000 A and an ultimate short-circuit breaking capacity of 65 kA at 415 V AC, the E2N2000 is suited to demanding high-current distribution applications. Its fixed construction, horizontal rear connections, four auxiliary contacts and open/closed position indication support robust integration into low-voltage switchboards and power distribution assemblies.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 2000 A rated current for demanding industrial and commercial installations.
• Three-pole fixed configuration for three-phase electrical distribution systems.
• Advanced PR122/P-LI electronic overcurrent release for circuit protection.
• Long-time and instantaneous protection against overload and short-circuit conditions.
• 65 kA ultimate short-circuit breaking capacity at 415 V AC.
• 55 kA short-time withstand current for 1 s for robust fault-current performance.
• Horizontal rear terminals support efficient integration into switchboards and power distribution assemblies.

Key Features

• ABB SACE Emax E2N series.
• 2000 A rated current.
• Three-pole construction.
• Fixed version circuit breaker.
• PR122/P-LI R2000 electronic overcurrent release.
• LI protection: long-time and instantaneous.
• 690 V AC rated operational voltage.
• 65 kA ultimate and service short-circuit breaking capacity at 415 V AC.
• 55 kA short-time withstand current for 1 s.
• Horizontal rear terminal arrangement.
• Four auxiliary contacts for status and control signalling.
• Open/closed circuit-breaker position indication.

Advanced Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N2000 provide switching, isolation and protection for high-current low-voltage distribution circuits. They are commonly installed as main incomers, feeders and distribution protection devices where dependable interruption of high prospective fault currents is essential.

The PR122/P electronic overcurrent release provides precise electronic protection for demanding electrical networks. In this LI configuration, long-time protection responds to sustained overload conditions while instantaneous protection rapidly responds to severe short-circuit currents, helping safeguard conductors, switchgear and connected electrical equipment.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Main incomer and high-current feeder protection.
• Manufacturing and process plants.
• Commercial and infrastructure electrical systems.
• Motor control centres and power distribution assemblies.
• Transformer secondary and generator distribution circuits.
• High-current electrical switchgear installations.