1SDA057507R1 ABB E3S-A 2000 PR122/P-LI 2000 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E3S-A 2000 PR122/P-LI 1SDA057507R1 Air Circuit Breaker?

The ABB 1SDA057507R1 is a high-performance SACE Emax E3S-A air circuit breaker designed for reliable switching and protection in high-current low-voltage electrical distribution systems. As part of the ABB New Emax series, this three-pole fixed breaker combines a 2000 A rated current with the PR122/P-LI electronic overcurrent release 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 provides dependable electronic protection against sustained overcurrents and severe short-circuit conditions, with an instantaneous current setting of 30000 A.

With a rated current of 2000 A and a three-pole fixed configuration, the E3S-A 1SDA057507R1 is designed for high-current three-phase AC distribution systems. The breaker features rear horizontal terminals, four auxiliary contacts and open/closed position indication, providing a robust arrangement for integration into compatible low-voltage switchboards and power distribution assemblies.

Key Advantages

• Heavy-duty ABB SACE Emax E3S-A air circuit breaker 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 fixed configuration with rear horizontal terminals for three-phase AC distribution systems.
• Four auxiliary contacts and open/closed position indication support signalling and control.

Key Features

• ABB SACE Emax E3S-A series.
• 2000 A rated current.
• Three-pole air circuit breaker.
• PR122/P-LI R2000 electronic trip unit.
• 30000 A instantaneous current setting.
• Long-time overload protection.
• Instantaneous short-circuit protection.
• Fixed circuit-breaker configuration.
• Rear horizontal terminals.
• Four auxiliary contacts for signalling and control.
• Open/closed circuit-breaker position indication.
• UL version for compatible low-voltage distribution installations.

Reliable 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 monitors circuit current and provides long-time protection against sustained overloads together with instantaneous protection against severe short-circuit currents.

The fixed construction of the 1SDA057507R1 makes it suitable for permanent installation within compatible switchboards and power distribution assemblies. Its 2000 A rating, electronic LI protection, rear horizontal terminals, auxiliary contacts and breaker position indication make it a practical solution for industrial and commercial installations requiring dependable high-current circuit protection.

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.