1SDA057413R1 ABB E3N-A 2500 PR122/P-LI 2500 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA057413R1 E3N-A 2500 Air Circuit Breaker?

The ABB 1SDA057413R1 is a high-performance SACE Emax E3N-A air circuit breaker moving part designed for switching and protection in demanding low-voltage electrical distribution systems. Identified as E3N-A 2500 PR122/P-LI In=2500A 3p W MP, this three-pole withdrawable breaker combines a 2500 A rated current with the ABB PR122/P-LI electronic overcurrent release.

As part of the ABB SACE Emax / New Emax range, the E3N-A platform is engineered for high-current industrial, commercial and infrastructure power distribution. Its withdrawable moving-part construction is designed for integration with the appropriate fixed part, providing a practical architecture for switchgear where inspection, servicing and operational flexibility are important.

The PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. This configuration incorporates an R2500 overcurrent release with a 37,500 A instantaneous release reference and is fitted with four auxiliary contacts plus circuit-breaker open/closed position indication.

Key Advantages

• Heavy-duty ABB SACE Emax E3N-A air circuit breaker moving part for high-current power distribution.
• 2500 A rated current for demanding industrial and commercial electrical systems.
• Advanced PR122/P-LI electronic overcurrent release.
• LI functionality provides long-time overload and instantaneous short-circuit protection.
• Three-pole withdrawable configuration supports maintainable switchgear installations.
• R2500 overcurrent release matched to the 2500 A breaker rating.
• Four auxiliary contacts support signalling and control functions.
• Open/closed position indication provides clear circuit-breaker status information.

Key Features

• ABB SACE Emax E3N-A series.
• 2500 A rated current.
• Three-pole configuration.
• Withdrawable (W) moving part (MP).
• PR122/P-LI electronic trip unit.
• R2500 overcurrent release.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• 37,500 A instantaneous release reference.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• UL configuration for compatible low-voltage switchgear applications.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3N-A provide switching, isolation and overcurrent protection for low-voltage electrical distribution systems. Electronic trip technology monitors circuit current and enables the breaker to interrupt the supply when configured protection thresholds are exceeded, helping protect conductors, switchgear and downstream electrical equipment.

The PR122/P-LI release combines long-time protection against sustained overload conditions with instantaneous protection against severe short circuits. Together with the withdrawable E3N-A architecture, the 1SDA057413R1 provides a robust solution for high-current switchboards where dependable circuit protection, operational flexibility and convenient maintenance access are important.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial incoming supply circuits.
• High-current distribution feeders.
• Manufacturing and process facilities.
• Commercial building power distribution.
• Infrastructure electrical systems.
• Transformer secondary distribution circuits.
• Generator distribution and power-management systems.
• Withdrawable switchgear requiring electronic LI overcurrent protection.