1SDA056451R1 ABB E3H2000 PR122/P-LI 2000A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB E3H2000 PR122/P-LI 2000A Air Circuit Breaker?

The ABB 1SDA056451R1 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 three-pole withdrawable configuration incorporates ABB’s PR122/P-LI R2000 electronic overcurrent release for dependable overload and short-circuit protection in industrial, commercial and infrastructure power networks.

As part of the ABB SACE Emax range, the E3H2000 combines robust switching performance with advanced electronic protection. The PR122/P-LI trip unit provides long-time overload and instantaneous short-circuit protection functions, helping safeguard switchboards, cables and connected electrical equipment against damaging overcurrents.

The E3H2000 PR122/P-LI has a rated current of 2000 A and is supplied as a three-pole withdrawable moving part. It is fitted with four auxiliary contacts and circuit-breaker open/closed position indication, while its withdrawable construction makes it particularly suitable for low-voltage switchboards where efficient inspection, maintenance and replacement are important requirements.

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.
• PR122/P-LI R2000 electronic overcurrent release for dependable circuit protection.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• Three-pole withdrawable construction supports efficient switchboard inspection and maintenance.
• Fitted with four auxiliary contacts and open/closed position indication.

Key Features

• ABB SACE Emax E3H2000 circuit breaker moving part.
• 2000 A rated current.
• Three-pole withdrawable configuration.
• PR122/P-LI R2000 electronic overcurrent release.
• Long-time overload 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 use within ABB SACE Emax low-voltage switchgear systems.

Advanced Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E3H2000 provide switching and protection for high-current low-voltage distribution circuits. Their robust construction makes them suitable for demanding switchboard applications where dependable interruption of overload and short-circuit currents is essential for protecting cables, electrical equipment and downstream distribution systems.

The PR122/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the withdrawable Emax construction, this makes the 1SDA056451R1 particularly suitable for main incomers, feeders and other critical high-current circuits where dependable protection and convenient switchboard maintenance are required.

Typical Applications

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