1SDA056655R1 ABB E3V2000 PR123/P-LSIG 2000 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA056655R1 E3V 2000 A Air Circuit Breaker?

The ABB 1SDA056655R1 is a high-performance SACE Emax E3V air circuit breaker (ACB) moving part designed for switching and protection in demanding low-voltage electrical distribution systems. Identified as E3V2000 PR123/P-LSIG In=2000A 4P W MP, this four-pole withdrawable circuit breaker moving part combines a 2000 A rated current with ABB’s advanced PR123/P-LSIG electronic overcurrent release.

As part of the ABB SACE Emax / New Emax range, the E3V2000 is engineered for industrial, commercial and infrastructure power distribution applications requiring comprehensive protection and high fault-current interruption performance. The PR123/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection, helping safeguard cables, busbars, transformers and connected equipment against overloads, short circuits and earth faults.

This version features a four-pole withdrawable moving-part construction for use with the corresponding ABB SACE Emax fixed part. The withdrawable arrangement facilitates circuit breaker isolation, inspection, servicing and replacement, while the four-pole configuration and comprehensive LSIG protection make the 1SDA056655R1 particularly suitable for critical power distribution systems requiring advanced protection and maintainability.

Key Advantages

• High-performance 2000 A air circuit breaker moving part for demanding low-voltage power distribution.
• Advanced PR123/P-LSIG electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• Four-pole configuration supports switching and protection across four conductors.
• Withdrawable moving-part design facilitates breaker isolation, servicing and replacement.
• High-performance E3V frame for demanding power distribution installations.
• Four auxiliary contacts support signalling, monitoring and control integration.
• Open/closed position indication provides clear circuit breaker status information.

Key Features

• ABB SACE Emax E3V frame.
• 2000 A rated current.
• PR123/P-LSIG electronic trip unit.
• R2000 overcurrent release rating.
• Long-time, short-time, instantaneous and ground-fault (LSIG) protection.
• Four-pole configuration.
• Withdrawable moving-part design.
• Designed for use with the corresponding ABB SACE Emax fixed part.
• Four auxiliary contacts.
• Open/closed circuit breaker position indication.
• IP20 protection classification.
• Optional motor operating mechanism compatibility.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB E3V2000 provide switching and automatic protection for high-current low-voltage electrical distribution systems. The PR123/P electronic overcurrent release monitors electrical conditions and provides advanced protection functions to help safeguard cables, busbars, transformers and downstream equipment against damaging overload, short-circuit and ground-fault conditions.

The LSIG configuration combines long-time overload protection, short-time selective short-circuit protection, instantaneous short-circuit protection and ground-fault protection. Combined with the four-pole withdrawable construction and high-performance E3V frame, this makes the 1SDA056655R1 suitable for critical installations requiring coordinated protection together with convenient breaker isolation, inspection and replacement.

Typical Applications

• Low-voltage main distribution switchboards.
• Industrial power distribution systems.
• Main incomer and high-current feeder protection.
• Four-pole power distribution circuits.
• Manufacturing and process plants.
• Commercial and infrastructure electrical systems.
• Transformer secondary distribution circuits.
• High-fault-level electrical installations.
• Switchboards requiring withdrawable air circuit breakers.
• Distribution systems requiring comprehensive LSIG protection.