1SDA056932R1 ABB E4V4000 PR122/P-LSI 4000A 3-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB E4V4000 PR122/P-LSI 4000A Air Circuit Breaker?

The ABB 1SDA056932R1, extended product type E4V4000PR122/P-LSIIn=4000A3pWMP, is a high-performance SACE Emax air circuit breaker moving part designed for protection and switching in demanding low-voltage electrical distribution systems. Part of the ABB SACE Emax E4V series, this three-pole withdrawable unit combines a 4000 A current rating with the PR122/P-LSI R4000 electronic overcurrent release.

The E4V4000 is engineered for high-current industrial, commercial and infrastructure power distribution applications where dependable overload and short-circuit protection is essential. Its PR122/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection functions, helping safeguard switchgear, cables and connected electrical equipment while supporting selective coordination within complex distribution networks.

With a rated uninterrupted current of 4000 A, rated operational voltage of 690 V AC and an ultimate short-circuit breaking capacity of 150 kA at 400 V AC, the E4V4000 delivers substantial fault-clearing performance. This version is a three-pole withdrawable moving part designed for use with a compatible SACE Emax fixed part and is supplied with four auxiliary contacts and open/closed circuit-breaker position indication.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for demanding low-voltage distribution systems.
• 4000 A rated uninterrupted current for high-current industrial and commercial installations.
• PR122/P-LSI R4000 electronic overcurrent release with long-time, short-time and instantaneous protection.
• 150 kA ultimate short-circuit breaking capacity at 400 V AC.
• Three-pole withdrawable configuration for use with a compatible SACE Emax fixed part.
• 100 kA short-time withstand current for 1 s for demanding distribution applications.
• Four auxiliary contacts and circuit-breaker open/closed position indication fitted.

Key Features

• ABB SACE Emax E4V series.
• 4000 A rated current.
• Three-pole configuration.
• Withdrawable moving part.
• PR122/P-LSI R4000 electronic trip unit.
• Long-time overload protection.
• Short-time short-circuit protection for selective coordination.
• Instantaneous short-circuit protection.
• 690 V AC rated operational voltage.
• 150 kA Icu and Ics at 400 V AC.
• 130 kA Icu and Ics at 500 V AC.
• 100 kA Icu and Ics at 690 V AC.
• High-breaking-capacity V-performance Emax design.
• Four auxiliary contacts fitted.
• Open/closed circuit-breaker position indication.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB SACE Emax E4V4000 protect low-voltage distribution networks by interrupting potentially damaging currents when overload or short-circuit conditions occur. The E4V platform combines a high continuous current rating with substantial short-circuit performance, making it suitable for main switchboards, industrial distribution systems and critical installations where high prospective fault currents must be safely controlled.

The PR122/P-LSI electronic release provides three complementary protection functions. Long-time protection responds to sustained overloads, short-time protection supports selective coordination between protective devices, and instantaneous protection provides rapid interruption during severe short-circuit faults. The withdrawable construction allows the circuit-breaker moving part to be disconnected and removed from its compatible fixed section, supporting inspection, servicing and replacement in critical switchgear installations.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• High-current switchgear assemblies.
• Transformer secondary protection and distribution.
• Generator and installation protection.
• Manufacturing and process plants.
• Commercial and infrastructure electrical distribution.
• Critical power systems requiring selective LSI protection.