1SDA059361R1 ABB E3H1000 PR122/P-LSI 1000 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB 1SDA059361R1 E3H1000 Air Circuit Breaker?

The ABB 1SDA059361R1 is a high-performance SACE Emax E3H air circuit breaker (ACB) designed for reliable protection, switching and isolation in demanding low-voltage electrical distribution systems. Identified by ABB as E3H1000PR122/P-LSIIn=1000A3pF, this three-pole fixed circuit breaker combines a 1000 A rated current with the advanced PR122/P-LSI electronic trip unit.

As part of the ABB New Emax product family, the E3H1000 is engineered for industrial, commercial and infrastructure applications requiring high short-circuit performance. The PR122/P-LSI electronic release provides long-time overload, short-time short-circuit and instantaneous short-circuit protection, enabling effective coordination within complex low-voltage distribution networks.

The 1SDA059361R1 is a three-pole fixed circuit breaker with horizontal rear terminals. The E3H performance level provides a rated ultimate short-circuit breaking capacity of 100 kA at 415 V AC and a rated short-time withstand current of 75 kA for 1 s, making it suitable for installations with high prospective fault currents.

Key Advantages

• Heavy-duty ABB SACE Emax E3H air circuit breaker for demanding power distribution applications.
• 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.
• 100 kA ultimate short-circuit breaking capacity at 415 V AC.
• 75 kA short-time withstand current for 1 s.
• Provides long-time, short-time and instantaneous protection.
• Horizontal rear terminals support integration into low-voltage switchboard assemblies.

Key Features

• ABB SACE New Emax E3H series.
• 1000 A rated current.
• Three-pole construction.
• Fixed version.
• Horizontal rear terminals.
• PR122/P electronic trip unit.
• LSI protection functions: long-time, short-time and instantaneous.
• Electronic protection settings for coordination within low-voltage distribution systems.
• 100 kA Icu at 415 V AC.
• 75 kA Icw for 1 s.
• Designed for high-performance industrial and commercial power distribution.

Reliable High-Capacity Circuit Protection

Air circuit breakers such as the ABB SACE Emax E3H protect high-current low-voltage distribution systems against overload and short-circuit conditions. The E3H performance class combines substantial current-carrying capability with high fault interruption performance, making it particularly suitable for main distribution circuits where prospective short-circuit currents can be significant.

The PR122/P-LSI electronic trip unit provides adjustable long-time, short-time and instantaneous protection functions. This combination supports selective coordination between protective devices and helps isolate electrical faults while maintaining continuity elsewhere in a correctly designed distribution system.

Typical Applications

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