1SDA055931R1 ABB E2N2000 PR122/P-LI 2000 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2N2000 1SDA055931R1 Air Circuit Breaker?

The ABB E2N2000 1SDA055931R1 is a high-performance SACE Emax air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the established ABB New Emax series, this E2N 2000 configuration features a four-pole fixed design with horizontal rear terminals, a rated current of 2000 A and a PR122/P-LI electronic overcurrent release.

Designed for industrial, commercial and infrastructure power distribution applications, the E2N2000 combines dependable high-current circuit protection with configurable electronic trip functionality. The PR122/P-LI electronic release provides long-time overload and instantaneous short-circuit protection, helping protect cables, switchgear and connected equipment against damaging overcurrent conditions.

This version combines a 2000 A rated current, four-pole construction and a rated operational voltage of 690 V AC. The E2N performance level provides rated ultimate and service short-circuit breaking capacities of 65 kA at 220–440 V AC and 55 kA at 500–690 V AC, while four auxiliary contacts and open/closed indication support integration into switchgear control and signalling systems.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 2000 A rated current for substantial industrial and commercial electrical loads.
• Four-pole fixed configuration suitable for high-current four-conductor distribution systems.
• PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection.
• 65 kA breaking capacity at 220–440 V AC and 55 kA at 500–690 V AC.
• Horizontal rear terminals provide a practical connection arrangement for compatible low-voltage switchboards.

Key Features

• ABB SACE New Emax E2N 2000 circuit breaker platform.
• 2000 A rated current.
• Four-pole construction.
• Fixed circuit breaker configuration.
• Horizontal rear terminals.
• PR122/P-LI electronic overcurrent release.
• R2000 / 2000 A release rating.
• Long-time overload and instantaneous short-circuit protection functions.
• 690 V AC rated operational voltage.
• Four auxiliary contacts and circuit breaker open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N2000 provide switching and protection for high-current low-voltage distribution circuits. Electronic trip technology enables abnormal current conditions to be detected accurately, allowing the breaker to disconnect the protected circuit according to configured protection parameters and helping safeguard cables, switchgear and connected equipment.

The PR122/P-LI release provides L and I protection functions, covering long-time overload and instantaneous short-circuit protection. Combined with the fixed SACE Emax architecture, four-pole construction and horizontal rear terminals, this configuration is well suited to switchboards requiring dependable high-current protection and robust system integration.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process plant switchgear.
• Incoming and outgoing high-current feeder protection.
• Four-pole distribution systems requiring fixed air circuit breakers.