1SDA055907R1 ABB E2N1600 PR122/P-LI 1600A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E2N1600 PR122/P-LI 1600A Air Circuit Breaker?

The ABB E2N1600 PR122/P-LI, order code 1SDA055907R1, is a high-performance three-pole withdrawable air circuit breaker moving part designed for protection and switching in low-voltage electrical distribution systems. As part of the proven ABB SACE Emax series, this E2N circuit breaker combines a 1600 A rated current with the PR122/P electronic overcurrent release for dependable protection in industrial, commercial and infrastructure power installations.

This configuration is supplied as the withdrawable moving part (W MP) of the circuit breaker, allowing the breaker assembly to be withdrawn from its compatible fixed cradle for inspection, maintenance and replacement. The integrated PR122/P-LI electronic overcurrent release provides long-time and instantaneous protection functions, helping protect electrical networks against sustained overloads and short-circuit faults.

With a rated current of 1600 A, three-pole construction and the E2N performance level, the E2N1600 PR122/P-LI is suited to demanding high-current distribution applications. It is fitted with four auxiliary contacts and open/closed position indication, supporting status signalling and integration into low-voltage switchboards and power distribution assemblies.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for low-voltage power distribution.
• 1600 A rated current for demanding industrial and commercial installations.
• Three-pole withdrawable configuration for three-phase electrical distribution systems.
• Advanced PR122/P-LI electronic overcurrent release for circuit protection.
• Long-time and instantaneous protection against overload and short-circuit conditions.
• 65 kA ultimate short-circuit breaking capacity at 415 V AC for high fault-level applications.
• 55 kA short-time withstand current for 1 s for robust fault-current performance.
• Withdrawable moving-part design supports efficient inspection, maintenance and replacement.

Key Features

• ABB SACE Emax E2N series.
• 1600 A rated current.
• Three-pole construction.
• Withdrawable moving part (W MP).
• PR122/P-LI electronic overcurrent release.
• LI protection: long-time and instantaneous.
• 690 V AC rated operational voltage.
• 65 kA ultimate short-circuit breaking capacity at 415 V AC.
• 55 kA short-time withstand current for 1 s.
• Four auxiliary contacts for status and control signalling.
• Open/closed circuit-breaker position indication.

Advanced Protection for Low-Voltage Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N1600 provide switching, isolation and protection for high-current low-voltage distribution circuits. Withdrawable configurations are particularly useful where maintainability and service continuity are important because the circuit-breaker moving part can be withdrawn from its compatible fixed section for inspection, servicing or replacement.

The PR122/P electronic overcurrent release provides precise electronic protection for demanding electrical networks. In this LI configuration, long-time protection responds to sustained overload conditions while instantaneous protection rapidly responds to severe short-circuit currents, helping safeguard conductors, switchgear and connected electrical equipment.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Main incomer and feeder circuit protection.
• Manufacturing and process plants.
• Commercial and infrastructure electrical systems.
• Motor control centres and power distribution assemblies.
• Transformer secondary and generator distribution circuits.
• Switchgear requiring withdrawable circuit-breaker architecture for maintenance flexibility.