1SDA061059R1 ABB E2S-A 1600 PR122/P-LSI 1600 A 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA061059R1 E2S-A 1600 Air Circuit Breaker?

The ABB 1SDA061059R1 is a high-performance E2S-A 1600 air circuit breaker (ACB) designed for protection and switching in demanding low-voltage power distribution systems. Part of the established ABB SACE Emax series, this three-pole breaker combines a 1600 A rated current with the PR122/P electronic overcurrent release for dependable protection in industrial, commercial and infrastructure installations.

The breaker is equipped with an ABB PR122/P electronic trip unit with LSI protection functions, providing long-time overload, short-time short-circuit and instantaneous short-circuit protection. These electronic protection functions enable effective coordination within distribution networks and help ensure rapid interruption when severe overcurrent conditions occur.

With its E2S-A performance level, three-pole construction and 1600 A current rating, the 1SDA061059R1 is suited to substantial incoming, feeder and distribution duties. The SACE Emax platform combines robust switching capability with electronic protection for switchboards where reliability, selectivity and continuity of electrical service are important.

Key Advantages

• High-performance 1600 A air circuit breaker for demanding low-voltage distribution systems.
• PR122/P electronic trip unit provides configurable electronic overcurrent protection.
• LSI protection functions cover long-time, short-time and instantaneous overcurrent conditions.
• Three-pole construction for three-phase low-voltage power distribution.
• Short-time protection supports improved selectivity and coordination between protective devices.
• Part of the proven ABB SACE Emax E2S-A circuit-breaker platform.

Key Features

• ABB SACE Emax E2S-A 1600 air circuit breaker.
• 1600 A rated current.
• 3-pole configuration.
• PR122/P electronic overcurrent release.
• LSI protection for long-time, short-time and instantaneous overcurrent faults.
• Electronic protection designed for coordinated low-voltage distribution systems.
• E2S-A performance class for demanding power distribution duties.
• Suitable for industrial, commercial and infrastructure switchgear applications.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E2S-A 1600 provide switching and protection for high-current low-voltage distribution circuits. They are commonly applied to incoming and feeder circuits where dependable interruption of overload and short-circuit faults is essential for maintaining electrical system safety, availability and continuity of service.

The PR122/P electronic trip unit monitors circuit current and initiates breaker operation when configured protection thresholds are exceeded. Its LSI functionality adds short-time protection between the long-time and instantaneous functions, supporting selective coordination and helping isolate faults while minimising unnecessary interruption to unaffected sections of the electrical network.

Typical Applications

• Low-voltage main distribution switchboards.
• High-current industrial power distribution systems.
• Incoming and feeder circuit protection.
• Manufacturing and process plant electrical systems.
• Commercial and infrastructure power distribution.
• Selective and coordinated low-voltage protection systems.