1SDA055899R1 ABB E2N1600 PR122/P-LI 1600A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB E2N1600 PR122/P-LI 1600A 4-Pole Fixed Air Circuit Breaker?

The ABB 1SDA055899R1 is a high-performance SACE Emax E2N air circuit breaker (ACB) designed for switching and protection in demanding low-voltage electrical distribution systems. Rated at 1600 A, this four-pole fixed circuit breaker is equipped with the PR122/P-LI R1600 electronic overcurrent release for reliable overload and instantaneous short-circuit protection.

As part of the ABB SACE Emax / New Emax range, the E2N1600 combines high-current switching capability with electronic circuit protection for industrial and commercial power distribution. The PR122/P-LI release provides long-time and instantaneous protection functions, helping protect cables, busbars, transformers and connected electrical equipment against sustained overloads and severe short-circuit currents.

The E2N1600 PR122/P-LI is a four-pole fixed circuit breaker with rear horizontal terminals and a rated current of 1600 A. Its E2N performance level is intended for demanding distribution systems requiring high short-circuit interruption capability, while the four-pole configuration supports three-phase four-wire installations where switching of the neutral conductor is required.

Key Advantages

• High-capacity 1600 A SACE Emax air circuit breaker.
• Four-pole configuration suitable for three-phase four-wire electrical distribution systems.
• Advanced PR122/P-LI R1600 electronic overcurrent release.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• E2N performance level for demanding low-voltage distribution applications.
• Fixed construction for permanent switchboard installations.
• Rear horizontal terminals simplify integration with switchboard busbar systems.
• Four auxiliary contacts with circuit-breaker open/closed position indication.

Key Features

• ABB SACE Emax E2N1600 air circuit breaker.
• 1600 A rated current.
• Four-pole configuration.
• Fixed circuit-breaker construction.
• Rear horizontal terminals.
• PR122/P-LI R1600 electronic overcurrent release.
• Long-time and instantaneous LI protection functions.
• Suitable for high-current low-voltage power distribution.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• Designed for integration into ABB SACE Emax switchboard systems.
• Electronic protection settings support coordination with other protective devices.

Reliable Circuit Protection for High-Current Four-Wire Distribution

Air circuit breakers such as the ABB E2N1600 provide switching, isolation and protection for high-current low-voltage distribution circuits. The four-pole configuration is particularly suitable for three-phase four-wire systems where the neutral conductor needs to be switched together with the three phase conductors, while the fixed construction provides robust integration into permanent switchboard installations.

The PR122/P-LI electronic release provides long-time protection against sustained overload conditions and instantaneous protection against severe short-circuit currents. Combined with the E2N circuit breaker's high-performance architecture, these functions support dependable protection and coordination throughout industrial, commercial and infrastructure power distribution systems.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Three-phase four-wire electrical distribution systems.
• Main incoming circuit protection.
• High-current feeder protection.
• Busbar and bus-coupler applications.
• Transformer secondary distribution systems.
• Manufacturing and process plants.
• Commercial and infrastructure power distribution.