1SDA056621R1 ABB E3V1600 PR122/P-LSIG 1600 A 4-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA056621R1 E3V 1600 A Air Circuit Breaker?

The ABB 1SDA056621R1 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 E3V1600 PR122/P-LSIG In=1600A 4P W MP, this four-pole withdrawable circuit breaker moving part combines a 1600 A rated current with ABB’s PR122/P-LSIG electronic overcurrent release.

As part of the ABB SACE Emax / New Emax range, the E3V1600 is engineered for industrial, commercial and infrastructure power distribution applications requiring advanced protection and high fault-current interruption performance. The PR122/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 allows the breaker to be isolated and removed for inspection, servicing or replacement, while the four-pole configuration and comprehensive LSIG protection make it particularly suitable for critical distribution systems requiring serviceability, selectivity and ground-fault protection.

Key Advantages

• High-performance 1600 A air circuit breaker moving part for demanding low-voltage power distribution.
• Advanced PR122/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.
• 1600 A rated current.
• PR122/P-LSIG electronic trip unit.
• R1600 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.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB E3V1600 provide switching and automatic protection for high-current low-voltage electrical distribution systems. The PR122/P electronic overcurrent release monitors circuit conditions and provides advanced protection functions to help safeguard cables, busbars, transformers and downstream electrical 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 1SDA056621R1 suitable for 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 selective LSIG protection.