1SDA058309R1 ABB E2S 800 PR122/P-LI 800 A 4-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E2S 800 PR122/P-LI 800 A 4-Pole Withdrawable Air Circuit Breaker?

The ABB E2S 800 PR122/P-LI, order code 1SDA058309R1, is the moving part of a four-pole withdrawable SACE Emax air circuit breaker rated at 800 A. It combines the E2 frame and S short-circuit performance class with the PR122/P-LI electronic overcurrent release for dependable protection of demanding low-voltage power-distribution systems.

The PR122/P-LI release provides long-time overload (L) and instantaneous short-circuit (I) protection. This LI protection combination provides effective protection against sustained overload conditions and severe short circuits while retaining a straightforward protection characteristic for applications that do not require short-time or ground-fault functions.

The W MP configuration identifies this product as a withdrawable circuit-breaker moving part for use with the appropriate E2 fixed part. Its withdrawable architecture supports inspection and maintenance procedures, while four auxiliary contacts provide open/closed position indication.

Key Advantages

• 800 A rated current for substantial low-voltage distribution loads.
• Four-pole construction for three-phase systems incorporating a neutral conductor.
• PR122/P-LI electronic overcurrent protection.
• Provides long-time overload and instantaneous short-circuit protection.
• Withdrawable moving-part construction supports maintainability and breaker replacement.
• E2S performance class provides high short-circuit interruption capability.
• Four auxiliary contacts provide open/closed breaker-position indication.
• Designed for integration with the appropriate ABB SACE Emax E2 fixed part.

Key Features

• SACE Emax E2S 800 air circuit breaker moving part.
• Rated current In = 800 A.
• 4-pole configuration.
• PR122/P-LI R800 electronic overcurrent release.
• Long-time (L) overload protection.
• Instantaneous (I) short-circuit protection.
• Withdrawable (W) version.
• Moving part (MP) configuration.
• Four auxiliary contacts with open/closed position indication.
• Designed for IEC low-voltage air circuit-breaker applications.

Dependable LI Protection with Withdrawable Emax Architecture

The PR122/P-LI electronic release provides two fundamental overcurrent protection functions. Long-time protection responds to sustained overloads that could otherwise cause excessive thermal stress, while instantaneous protection provides rapid tripping in response to severe short-circuit currents.

Combined with the E2S breaker's high short-circuit capability and withdrawable moving-part architecture, the ABB 1SDA058309R1 provides a practical solution for distribution systems where reliable fault protection, four-pole switching and convenient circuit-breaker maintenance are important requirements.

Typical Applications

• Main low-voltage distribution switchboards.
• Industrial power-distribution systems.
• Commercial and infrastructure switchgear.
• Three-phase four-wire electrical systems.
• Main incomer and high-current feeder protection.
• Withdrawable switchgear requiring convenient breaker maintenance.
• Applications requiring long-time and instantaneous overcurrent protection.