1SDA060997R1 ABB E2S-A 1200 PR122/P-LSI 1200 A 3-Pole Air Circuit Breaker

Why Choose the ABB 1SDA060997R1 E2S-A 1200 Air Circuit Breaker?

The ABB 1SDA060997R1 is a high-performance E2S-A 1200 air circuit breaker (ACB) designed for protection and switching in demanding low-voltage power distribution systems. As part of the established ABB SACE Emax series, this three-pole breaker combines a 1200 A rated current with the PR122/P electronic overcurrent release for dependable protection of industrial and commercial electrical 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. This combination supports coordinated protection of distribution networks while providing rapid interruption when severe overcurrent conditions occur.

With its E2S-A performance level, three-pole construction and 1200 A current rating, the 1SDA060997R1 is suitable for substantial incoming, feeder and distribution duties. Its Emax architecture is engineered for low-voltage switchgear applications where reliable high-current switching, electronic protection and system selectivity are important.

Key Advantages

• High-performance 1200 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 1200 air circuit breaker.
• 1200 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 Low-Voltage Power Distribution

Air circuit breakers such as the ABB E2S-A 1200 provide switching and protection for high-current low-voltage distribution circuits. They are commonly used for incoming, feeder and distribution duties 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, helping engineers coordinate protective devices and isolate faults while reducing unnecessary interruption to unaffected sections of the electrical network.

Typical Applications

• Low-voltage main distribution switchboards.
• 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.