1SDA056172R1 ABB E3N 3200 PR122/P-LSI 3200A 4P Withdrawable Air Circuit Breaker

Why Choose the ABB E3N 3200 PR122/P-LSI 3200A 4P Withdrawable Air Circuit Breaker?

The ABB 1SDA056172R1 is a high-performance SACE Emax E3N air circuit breaker designed for protection and switching of high-current low-voltage electrical distribution systems. This four-pole withdrawable circuit breaker is rated at 3200 A and incorporates ABB's PR122/P-LSI electronic overcurrent release for comprehensive protection of industrial power networks.

Part of the established ABB SACE Emax E3 series, the E3N 3200 combines high current capacity with electronic protection and a withdrawable construction that supports maintainability and continuity in critical switchboard installations. The N performance level provides a rated ultimate and service short-circuit breaking capacity of 65 kA at 400 V AC, while the breaker is suitable for systems with operational voltages up to 690 V AC.

The PR122/P-LSI trip unit provides long-time overload (L), short-time short-circuit (S) and instantaneous short-circuit (I) protection. The four-pole configuration enables switching and protection across all four conductors, while the moving-part withdrawable format is intended for use with the corresponding Emax E3 fixed part.

Key Advantages

• High-current 3200 A air circuit breaker for industrial power distribution.
• Four-pole configuration for comprehensive switching of multi-conductor systems.
• Advanced PR122/P-LSI electronic trip unit for overload and short-circuit protection.
• 65 kA breaking capacity at 400 V AC for demanding distribution networks.
• Withdrawable construction simplifies inspection, servicing and switchboard maintenance.
• Suitable for low-voltage installations operating up to 690 V AC.
• Part of ABB's proven SACE Emax E3 circuit-breaker platform.

Key Features

• ABB SACE Emax E3N 3200 air circuit breaker.
• 3200 A rated uninterrupted current.
• 4-pole configuration.
• PR122/P-LSI electronic overcurrent release.
• LSI protection functions: long-time, short-time and instantaneous.
• 690 V AC rated operational voltage.
• 65 kA rated ultimate short-circuit breaking capacity across specified AC system voltages up to 690 V.
• 65 kA rated service short-circuit breaking capacity across specified AC system voltages up to 690 V.
• 65 kA short-time withstand current for 1 and 3 seconds.
• Withdrawable moving-part circuit-breaker construction.
• Supplied with auxiliary contacts and open/closed position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E3N 3200 provide switching, isolation and automatic protection for high-current low-voltage distribution circuits. The electronic trip unit continuously supervises circuit current and commands the breaker to open when configured overload or short-circuit conditions occur, helping protect conductors, switchgear and connected equipment.

The PR122/P-LSI release provides multiple protection stages for coordinating the breaker with upstream and downstream protective devices. Combined with the withdrawable Emax construction, this makes the 1SDA056172R1 particularly suitable for switchboards where dependable protection, selective coordination and convenient maintenance are important.

Typical Applications

• Main incoming circuit protection in low-voltage switchboards.
• Industrial power distribution systems.
• High-current feeder and distribution circuits.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• Generator and transformer distribution switchboards.
• Automatic transfer and power-management systems.