1SDA059401R1 ABB E3S1000 PR122/P-LSI 1000 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB 1SDA059401R1 E3S1000 Air Circuit Breaker?

The ABB 1SDA059401R1 is a high-performance SACE Emax E3S air circuit breaker (ACB) designed for reliable protection, switching and isolation in demanding low-voltage electrical distribution systems. Identified by ABB as E3S1000PR122/P-LSIIn=1000A3pFHR, this three-pole fixed circuit breaker combines a 1000 A rated current with the advanced PR122/P-LSI electronic overcurrent release.

As part of the ABB New Emax product family, the E3S1000 is engineered for industrial, commercial and infrastructure power distribution applications. The PR122/P-LSI electronic trip unit provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, allowing protection settings to be coordinated with the requirements of the electrical distribution system.

The 1SDA059401R1 is supplied in a three-pole fixed configuration with rear horizontal terminals. Rated for 690 V AC operation and offering a rated ultimate short-circuit breaking capacity of 75 kA at 400 V AC, it is suitable for main incomer and feeder applications where dependable high-current protection and robust switchboard integration are required.

Key Advantages

• Heavy-duty ABB SACE Emax E3S air circuit breaker for low-voltage power distribution.
• 1000 A rated current for high-current electrical installations.
• Three-pole fixed configuration for three-phase distribution systems.
• Advanced PR122/P-LSI electronic trip unit for configurable circuit protection.
• Provides long-time, short-time and instantaneous protection.
• 75 kA ultimate short-circuit breaking capacity at 400 V AC.
• Rear horizontal terminals for practical switchboard integration.
• Four auxiliary change-over contacts and open/closed position indication support control and signalling systems.

Key Features

• ABB SACE New Emax E3S series.
• 1000 A rated current.
• Three-pole construction.
• Fixed version.
• Rear horizontal terminals.
• PR122/P electronic trip unit.
• LSI protection functions: long-time, short-time and instantaneous.
• 690 V AC rated voltage.
• 75 kA Icu at 400 V AC.
• 400–1000 A overload release setting range.
• 600–10000 A short-time delayed short-circuit release adjustment range.
• 1500–15000 A instantaneous short-circuit release adjustment range.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E3S protect high-current low-voltage distribution systems against overload and short-circuit conditions. Their robust switching mechanisms and electronic protection technology make them suitable for important incoming and feeder circuits within industrial, commercial and infrastructure electrical installations.

The PR122/P-LSI electronic trip unit provides adjustable long-time, short-time and instantaneous protection functions. Combined with the fixed construction and rear horizontal terminals, the 1SDA059401R1 provides a dependable solution for switchboards requiring selective protection, high fault interruption capability and permanent circuit-breaker installation.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• Industrial power distribution systems.
• Commercial building electrical infrastructure.
• Manufacturing and process plants.
• Transformer secondary distribution systems.
• Generator distribution systems.
• Main incomer and high-current feeder protection.
• Three-phase switchboards requiring high short-circuit breaking performance.