1SDA055922R1 ABB E2N2000 PR121/P-LSIG 2000A 3-Pole Air Circuit Breaker

Why Choose the ABB E2N2000 PR121/P-LSIG 2000A Air Circuit Breaker?

The ABB E2N2000 PR121/P-LSIG, order code 1SDA055922R1, 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 PR121/P electronic overcurrent release for dependable protection in demanding industrial, commercial and infrastructure power installations.

This configuration is supplied as a fixed three-pole circuit breaker with horizontal rear terminals. The integrated PR121/P-LSIG electronic overcurrent release provides long-time, short-time, instantaneous and ground-fault protection functions, helping protect electrical networks against overloads, short circuits and earth faults.

With a rated uninterrupted current of 2000 A and an ultimate short-circuit breaking capacity of 65 kA at 415 V AC, the E2N2000 is suited to high-current main distribution and feeder applications. Its fixed construction, horizontal rear terminals, four auxiliary contacts and circuit-breaker 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 high-current installations.
• Three-pole fixed configuration for three-phase electrical distribution systems.
• PR121/P-LSIG electronic overcurrent release for comprehensive circuit protection.
• Long-time, short-time, instantaneous and ground-fault protection functions.
• 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 simplify 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.
• PR121/P-LSIG electronic overcurrent release.
• LSIG protection: long-time, short-time, instantaneous and ground-fault.
• 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 PR121/P electronic overcurrent release provides LSIG protection for demanding electrical networks. Long-time protection responds to sustained overload conditions, short-time and instantaneous functions protect against short-circuit currents, and ground-fault protection provides additional protection against earth-fault currents within the electrical distribution system.

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.