1SDA056604R1 ABB E3V1600 PR122/P-LSI 1600 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB 1SDA056604R1 E3V 1600 A Air Circuit Breaker?

The ABB 1SDA056604R1 is a high-performance SACE Emax E3V air circuit breaker (ACB) designed for switching and protection in demanding low-voltage electrical distribution systems. Identified as E3V1600 PR122/P-LSI In=1600A 4P F HR, this four-pole fixed circuit breaker combines a 1600 A rated uninterrupted current with the ABB PR122/P-LSI 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 selective overcurrent protection and high fault-current interruption capability. The PR122/P-LSI electronic trip unit provides long-time, short-time and instantaneous protection, helping safeguard cables, busbars, transformers and connected equipment against overloads and short-circuit faults.

This version features a four-pole fixed construction with rear flat horizontal terminals for permanent installation within low-voltage switchboards. Rated for operation up to 690 V AC, with an ultimate short-circuit breaking capacity of 130 kA at 400–415 V AC and a rated short-time withstand current of 85 kA for 1 s, the E3V1600 is well suited to high-fault-level distribution systems requiring dependable and selective circuit protection.

Key Advantages

• High-performance 1600 A air circuit breaker for demanding low-voltage power distribution.
• PR122/P-LSI electronic overcurrent release for advanced overload and short-circuit protection.
• LSI functionality provides long-time, short-time and instantaneous protection.
• Four-pole configuration supports switching and protection across four conductors.
• Fixed mounting with rear flat horizontal terminals for permanent switchboard installation.
• 130 kA ultimate short-circuit breaking capacity at 400–415 V AC.
• 100 kA service short-circuit breaking capacity at 400–415 V AC.
• 85 kA rated short-time withstand current for 1 s supports demanding selective protection schemes.

Key Features

• ABB SACE Emax E3V frame.
• 1600 A rated uninterrupted current.
• PR122/P-LSI electronic trip unit.
• R1600 overcurrent release rating.
• Long-time, short-time and instantaneous (LSI) protection.
• Four-pole configuration.
• Fixed mounting construction.
• Rear flat horizontal terminals.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• Four auxiliary contacts with open/closed 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 and short-circuit conditions.

The LSI configuration combines long-time overload protection, short-time selective short-circuit protection and instantaneous short-circuit protection. Combined with the four-pole fixed construction, rear horizontal terminal arrangement and high breaking performance of the E3V frame, this makes the 1SDA056604R1 suitable for installations requiring coordinated protection and dependable interruption of high prospective fault currents.

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.
• Fixed switchboard installations requiring high breaking capacity.
• Distribution systems requiring selective LSI overcurrent protection.