1SDA055852R1 ABB E2B2000 PR122/P-LSI 2000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2B2000 1SDA055852R1 Air Circuit Breaker?

The ABB E2B2000 1SDA055852R1 is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for protection and switching in low-voltage electrical distribution systems. Part of the established ABB New Emax series, this E2B 2000 configuration features a four-pole withdrawable design, a rated current of 2000 A and a PR122/P-LSI electronic overcurrent release.

Designed for demanding industrial, commercial and infrastructure power distribution applications, the E2B2000 combines dependable circuit protection with the serviceability of a withdrawable breaker arrangement. The PR122/P-LSI electronic trip unit provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, allowing coordinated protection of high-current electrical distribution circuits.

This version is supplied as the moving part for an E2B 2000 withdrawable circuit breaker and combines a 2000 A rated current with four-pole construction and a rated operational voltage of 690 V AC. Its E2B performance level provides a rated ultimate short-circuit breaking capacity of 42 kA, while four auxiliary change-over contacts and open/closed position indication support switchgear control and status monitoring.

Key Advantages

• Robust ABB SACE Emax air circuit breaker moving part for high-current low-voltage distribution.
• 2000 A rated current for demanding industrial and commercial installations.
• Four-pole configuration suitable for four-conductor power distribution systems.
• PR122/P-LSI electronic trip unit providing long-time, short-time and instantaneous overcurrent protection.
• 42 kA ultimate and service short-circuit breaking capacity across the rated AC operational voltage range.
• Withdrawable design supports convenient inspection, servicing and replacement within compatible SACE Emax switchgear.

Key Features

• ABB SACE New Emax E2B 2000 circuit breaker platform.
• 2000 A rated current.
• Four-pole construction.
• Withdrawable moving-part configuration.
• PR122/P-LSI electronic overcurrent release.
• R2000 release rating.
• Long-time overload, short-time and instantaneous short-circuit protection.
• 690 V AC rated operational voltage.
• 42 kA rated ultimate short-circuit breaking capacity.
• Four auxiliary change-over contacts and circuit breaker open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E2B2000 provide switching and protection for high-current low-voltage distribution circuits. Electronic trip technology enables accurate detection of abnormal current conditions, allowing the breaker to disconnect the protected circuit when configured protection thresholds are exceeded.

The PR122/P-LSI release provides L, S and I protection functions, covering long-time overload, short-time short-circuit and instantaneous short-circuit protection. Combined with the withdrawable SACE Emax architecture, this configuration is well suited to switchboards where dependable high-current protection, selective coordination, maintainability and operational flexibility are important.

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.