1SDA056460R1 ABB E3H2000 PR122/P-LSI 2000A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3H2000 PR122/P-LSI 2000A 4-Pole Air Circuit Breaker?

The ABB 1SDA056460R1 is a high-performance SACE Emax E3H air circuit breaker moving part designed for protection and switching in high-current low-voltage electrical distribution systems. Rated at 2000 A, this four-pole withdrawable configuration incorporates ABB’s PR122/P-LSI R2000 electronic overcurrent release for advanced protection of industrial, commercial and infrastructure power networks.

As part of the ABB SACE Emax range, the E3H2000 combines high short-circuit performance with configurable electronic protection. The PR122/P-LSI trip unit provides long-time, short-time and instantaneous protection functions, helping safeguard electrical installations against overloads and short circuits while supporting selective protection strategies within low-voltage distribution systems.

The E3H2000 PR122/P-LSI has a rated current of 2000 A and is supplied as a four-pole withdrawable moving part. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, making it particularly suitable for maintainable high-current switchboards where four-pole switching and comprehensive overcurrent protection are required.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker moving part for low-voltage power distribution.
• 2000 A rated current for demanding industrial and commercial installations.
• Four-pole construction for applications requiring switching of all four conductors.
• PR122/P-LSI R2000 electronic overcurrent release for advanced circuit protection.
• LSI protection provides long-time, short-time and instantaneous protection functions.
• Three-position withdrawable construction supports efficient inspection, servicing and circuit-breaker replacement within compatible switchgear.

Key Features

• ABB SACE Emax E3H2000 circuit breaker moving part.
• 2000 A rated current.
• Four-pole withdrawable configuration.
• PR122/P-LSI R2000 electronic overcurrent release.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• High-breaking-capacity E3H construction for demanding power distribution systems.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.
• Withdrawable construction for convenient servicing and replacement.
• Designed for integration into ABB SACE Emax low-voltage switchgear systems.

Advanced Four-Pole Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H2000 provide switching, isolation and protection for high-current low-voltage distribution circuits. The four-pole configuration enables simultaneous switching of three phase conductors and the neutral, making it suitable for electrical systems where complete four-pole isolation is required.

The PR122/P-LSI electronic trip unit provides long-time overload, short-time short-circuit and instantaneous short-circuit protection. Combined with the withdrawable Emax construction, this makes the 1SDA056460R1 particularly suitable for main incomers, feeders and other critical circuits where selective protection, four-pole switching and convenient switchboard maintenance are required.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial four-pole power distribution systems.
• Main incomer and feeder circuit protection.
• Three-phase systems requiring neutral switching.
• Manufacturing and process plants.
• Commercial and infrastructure electrical installations.
• Power distribution centres and withdrawable switchgear assemblies.