1SDA057509R1 ABB E3S-A 2000 PR122/P-LI 2000 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3S-A 2000 PR122/P-LI 1SDA057509R1 Air Circuit Breaker?

The ABB 1SDA057509R1 is a SACE Emax E3S-A air circuit breaker moving part designed for reliable switching and protection in high-current low-voltage electrical distribution systems. This three-pole UL version combines a 2000 A rated current with the PR122/P-LI electronic overcurrent release, making it suitable for demanding industrial, commercial and infrastructure power distribution applications.

The breaker is equipped with an ABB PR122/P-LI R2000 electronic trip unit, providing long-time overload and instantaneous short-circuit protection. The LI protection configuration helps protect distribution circuits against sustained overcurrents and severe short-circuit conditions, while the breaker has an instantaneous current setting of 30000 A.

Configured as a three-pole withdrawable moving part, the E3S-A 1SDA057509R1 is designed for use within a compatible SACE Emax withdrawable assembly. It is fitted with four auxiliary contacts and open/closed position indication, supporting integration with switchgear signalling, monitoring and control systems while allowing convenient breaker isolation and removal for servicing.

Key Advantages

• Heavy-duty ABB SACE Emax E3S-A air circuit breaker moving part for low-voltage power distribution.
• 2000 A rated current for demanding high-current electrical installations.
• PR122/P-LI R2000 electronic trip unit for dependable electronic overcurrent protection.
• LI functions provide long-time overload and instantaneous short-circuit protection.
• 30000 A instantaneous current setting for rapid response to severe short-circuit conditions.
• Three-pole withdrawable configuration supports convenient isolation, maintenance and breaker replacement.
• Four auxiliary contacts and open/closed position indication support switchgear signalling and control.

Key Features

• ABB SACE Emax E3S-A series.
• 2000 A rated current.
• Three-pole air circuit breaker moving part.
• PR122/P-LI R2000 electronic overcurrent release.
• 30000 A instantaneous current setting.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• Withdrawable moving-part configuration.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• UL version for compatible SACE Emax installations.

Reliable Withdrawable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E3S-A are designed to switch and protect high-current low-voltage distribution circuits. The PR122/P-LI electronic trip unit provides long-time protection against sustained overload conditions together with instantaneous protection against severe short-circuit currents, helping safeguard switchgear, conductors and connected equipment.

The withdrawable moving-part construction of the 1SDA057509R1 provides additional flexibility for switchgear applications where maintainability and service access are important. Its 2000 A rating, LI electronic protection, auxiliary contacts and breaker position indication make it suitable for critical industrial and commercial distribution systems requiring dependable protection and practical maintenance capability.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process plant switchgear.
• Generator and transformer distribution circuits.
• High-current three-phase AC installations.
• Withdrawable switchgear requiring serviceable circuit-breaker assemblies.