1SDA056813R1 ABB E4S4000 PR122/P-LSIG 4000A 4P Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E4S4000 PR122/P-LSIG 4000A 4P Withdrawable Air Circuit Breaker?

The ABB E4S4000 PR122/P-LSIG, order code 1SDA056813R1, is a high-performance SACE Emax E4S air circuit breaker moving part designed for protection and switching in high-current low-voltage electrical distribution systems. Rated at 4000 A, this four-pole withdrawable configuration combines the robust ABB SACE Emax platform with a PR122/P-LSIG R4000 electronic overcurrent release.

The PR122/P-LSIG release provides long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection, delivering comprehensive protection against overload, short-circuit and earth-fault conditions. The electronic protection platform supports dependable and selective protection for main distribution switchboards, industrial power systems and other high-capacity installations.

This version is supplied as the four-pole withdrawable moving part of the E4S4000 circuit breaker and is designed for use with the corresponding ABB SACE Emax fixed part. It is rated for 4000 A continuous current and 690 V AC operation, with 75 kA ultimate and service short-circuit breaking capacity across its specified AC voltage range.

Key Advantages

• High-current 4000 A SACE Emax E4S circuit breaker moving part for demanding low-voltage distribution.
• Four-pole configuration provides switching and protection across four conductors.
• PR122/P-LSIG electronic overcurrent release provides L, S, I and G protection functions.
• Integrated earth-fault protection provides additional protection against ground-fault conditions.
• Short-time protection supports selective coordination between upstream and downstream protective devices.
• Withdrawable moving-part construction facilitates inspection, servicing and replacement.
• 75 kA ultimate and service short-circuit breaking capacity across the specified AC voltage range.
• Four auxiliary change-over contacts provide circuit-breaker status signalling.

Key Features

• ABB SACE Emax E4S series.
• 4000 A rated current.
• Four-pole circuit-breaker configuration.
• PR122/P-LSIG R4000 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Earth-fault protection (G).
• Withdrawable moving-part execution.
• 690 V AC rated operational voltage.
• 75 kA rated short-time withstand current for 1 s and 3 s.
• Four auxiliary change-over contacts with open/closed circuit-breaker position indication.

Comprehensive High-Current Protection with Withdrawable Serviceability

Air circuit breakers such as the ABB SACE Emax E4S are designed to protect high-capacity low-voltage distribution systems against damaging overload, short-circuit and earth-fault conditions. The PR122/P-LSIG electronic release combines long-time, short-time, instantaneous and earth-fault protection, helping safeguard busbars, feeders and connected electrical equipment while supporting coordinated system protection.

The withdrawable E4S4000 configuration is particularly suitable for switchboards where serviceability and operational flexibility are important. The circuit-breaker moving part can be withdrawn from its corresponding fixed section for inspection, maintenance or replacement, while its 4000 A rating and 75 kA short-circuit performance make it suitable for substantial industrial, commercial and infrastructure distribution systems.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-capacity industrial power distribution systems.
• Main incoming and high-current feeder protection.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process-industry switchgear.
• Transformer and generator distribution systems.
• Switchboards requiring withdrawable circuit breakers for improved serviceability.
• Electrical installations requiring four-pole switching and earth-fault protection.