1SDA055945R1 ABB E2N2000 2000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2N2000 1SDA055945R1 Air Circuit Breaker?

The ABB E2N2000 1SDA055945R1 is a high-performance SACE Emax air circuit breaker (ACB) moving part designed for protection and switching in high-current low-voltage electrical distribution systems. Part of the proven ABB SACE Emax E2 series, this four-pole withdrawable breaker combines a 2000 A rated current with the electronic PR121/P-LSI trip unit for dependable overload, short-time and instantaneous short-circuit protection.

Designed for demanding industrial and commercial power distribution applications, the E2N2000 provides reliable circuit protection while its withdrawable construction supports convenient inspection and maintenance when installed with the appropriate Emax fixed part. The PR121/P-LSI electronic release provides L, S and I protection functions, enabling effective coordination against overload and short-circuit conditions.

This model is a four-pole withdrawable moving part rated for operation up to 690 V AC. The E2N performance level provides a rated ultimate short-circuit breaking capacity of 65 kA at 415 V AC, making the breaker suitable for substantial industrial distribution systems where high fault-current interruption capability is required.

Key Advantages

• High-current 2000 A air circuit breaker moving part for low-voltage power distribution.
• PR121/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection.
• 65 kA breaking capacity at 415 V AC for demanding fault conditions.
• Four-pole withdrawable configuration supports maintainable switchboard installations.
• Rated operational voltage up to 690 V AC.
• Equipped with auxiliary contacts and circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E2N2000 air circuit breaker.
• 2000 A rated current.
• 4-pole configuration.
• PR121/P-LSI electronic release.
• LSI protection functions: long-time, short-time and instantaneous.
• Withdrawable moving part (W MP) execution.
• 65 kA Icu at 415 V AC.
• 55 kA Icu at 690 V AC.
• 55 kA Icw for 1 second.
• Rated insulation voltage of 1000 V.
• Four auxiliary contacts for circuit-breaker open/closed status.

Reliable Protection for High-Current Distribution Systems

Air circuit breakers such as the ABB E2N2000 provide switching and protection at the main and distribution levels of low-voltage electrical installations. Their high current ratings and substantial short-circuit interruption capability make them particularly suitable for switchboards supplying industrial machinery, infrastructure and large commercial loads.

The PR121/P-LSI electronic trip unit provides long-time overload, short-time delayed short-circuit and instantaneous short-circuit protection. Combined with the withdrawable Emax platform, this provides dependable electrical protection together with convenient breaker removal for servicing and maintenance when used with the compatible fixed part.

Typical Applications

• Main low-voltage switchboards and distribution boards.
• Industrial power distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Transformer secondary and feeder protection.
• High-current machinery and production systems.