1SDA055949R1 ABB E2N2000 PR122/P-LSIG 2000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2N2000 1SDA055949R1 Air Circuit Breaker?

The ABB E2N2000 1SDA055949R1 is a high-performance SACE Emax air circuit breaker (ACB) moving part 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 withdrawable design, a rated current of 2000 A and a PR122/P-LSIG electronic overcurrent release.

Designed for industrial, commercial and infrastructure power distribution applications, the E2N2000 combines dependable high-current circuit protection with the serviceability of a withdrawable breaker arrangement. The PR122/P-LSIG electronic trip unit provides long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, delivering comprehensive protection for critical electrical distribution circuits.

This version is supplied as the moving part for an E2N 2000 withdrawable circuit breaker and combines a 2000 A rated current with four-pole construction and a rated voltage of 690 V AC. The E2N performance level provides a rated ultimate short-circuit breaking capacity of 65 kA at 400 V AC, 50 Hz, while four change-over auxiliary contacts and open/closed position indication support integration into switchgear control and signalling systems.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for demanding low-voltage power distribution.
• 2000 A rated current for substantial industrial and commercial electrical loads.
• Four-pole withdrawable configuration supports flexible installation, servicing and maintenance.
• PR122/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and earth-fault protection.
• 65 kA rated ultimate short-circuit breaking capacity at 400 V AC, 50 Hz.
• Withdrawable construction supports convenient inspection and replacement within compatible ABB SACE Emax switchgear.

Key Features

• ABB SACE New Emax E2N 2000 circuit breaker platform.
• 2000 A rated current.
• Four-pole construction.
• Withdrawable moving-part configuration.
• PR122/P-LSIG electronic overcurrent release.
• R2000 / 2000 A release rating.
• Long-time, short-time, instantaneous and earth-fault protection functions.
• 690 V AC rated voltage.
• Four change-over auxiliary contacts and circuit breaker open/closed position indication.
• Optional motor drive for electrically operated applications.

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-LSIG release provides L, S, I and G protection functions, covering long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection. Combined with the withdrawable SACE Emax architecture and four-pole construction, this configuration is well suited to switchboards requiring comprehensive high-current protection, selective coordination, maintainability and operational flexibility.

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 withdrawable air circuit breakers with earth-fault protection.