1SDA059275R1 ABB E2N1000 PR122/P-LSI 1000 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB 1SDA059275R1 E2N1000 Air Circuit Breaker?

The ABB 1SDA059275R1 is a high-performance SACE Emax E2N air circuit breaker (ACB) designed for reliable protection and switching of low-voltage electrical distribution systems. Identified by ABB as E2N1000PR122/P-LSIIn=1000A4pF, this four-pole circuit breaker combines a 1000 A rated current with the advanced PR122/P-LSI electronic trip unit for comprehensive overcurrent and short-circuit protection.

As part of the ABB New Emax product family, the breaker is engineered for demanding industrial and commercial power distribution applications where dependable circuit protection, selective coordination and accurate electronic protection are required. The PR122/P trip unit provides LSI protection functions covering long-time overload, short-time short-circuit and instantaneous short-circuit protection.

The 1SDA059275R1 is supplied as a four-pole fixed circuit breaker with an In rating of 1000 A. Its E2N frame and electronic protection system make it suitable for main distribution boards, switchboards, industrial plants, infrastructure and other installations requiring robust low-voltage power protection.

Key Advantages

• Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 1000 A rated current for high-current electrical installations.
• Four-pole configuration for three-phase systems requiring neutral switching and protection arrangements.
• Advanced PR122/P-LSI electronic trip unit for configurable circuit protection.
• Provides long-time, short-time and instantaneous protection.
• Fixed mounting configuration for permanent switchboard installation.
• Designed for reliable protection, isolation and switching in industrial and commercial distribution systems.

Key Features

• ABB SACE New Emax E2N series.
• 1000 A rated current.
• Four-pole construction.
• Fixed version.
• PR122/P electronic trip unit.
• LSI protection functions: long-time, short-time and instantaneous.
• Electronic protection settings allow the breaker to be coordinated with the requirements of the electrical distribution system.
• Suitable for main and feeder protection in low-voltage switchboards.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2N are used to protect high-current low-voltage distribution systems against overloads and short circuits. By combining heavy-duty switching contacts with an electronic trip unit, the breaker can monitor operating current and disconnect the circuit when configured protection thresholds are exceeded.

The PR122/P-LSI trip unit provides adjustable electronic protection functions that support selective coordination between upstream and downstream protective devices. This makes the 1SDA059275R1 particularly suitable for installations where continuity of supply, controlled fault isolation and dependable electrical protection are important.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical infrastructure.
• Manufacturing and process plants.
• Generator and transformer distribution systems.
• Feeder and incomer circuit protection.
• Power distribution panels requiring four-pole switching.
• Infrastructure and utility electrical installations.