1SDA059318R1 ABB E2S1000 PR122/P-LSI 1000 A 3-Pole Withdrawable Air Circuit Breaker

Why Choose the ABB 1SDA059318R1 E2S1000 Air Circuit Breaker?

The ABB 1SDA059318R1 is a high-performance SACE Emax E2S air circuit breaker (ACB) designed for reliable protection and switching of low-voltage electrical distribution systems. Identified as E2S1000PR122/P-LSIIn=1000A3pW, this three-pole withdrawable circuit breaker combines a 1000 A rated current with the advanced PR122/P-LSI electronic trip unit for comprehensive overload and short-circuit protection.

As part of the ABB New Emax product family, the breaker is engineered for demanding industrial, infrastructure and commercial power distribution applications. Its withdrawable moving-part configuration facilitates inspection, maintenance and replacement within a compatible Emax switchgear assembly, while the PR122/P trip unit provides configurable LSI protection functions for long-time overload, short-time short-circuit and instantaneous short-circuit protection.

With a 1000 A rated current, 690 V AC rated operational voltage and three-pole construction, the 1SDA059318R1 is suitable for substantial low-voltage distribution systems. The E2S performance level provides a rated ultimate short-circuit breaking capacity of 85 kA at 400 V AC, supporting demanding applications where high fault-current interruption capability is required.

Key Advantages

• Heavy-duty ABB SACE Emax air circuit breaker for low-voltage power distribution.
• 1000 A rated current for high-current electrical installations.
• Three-pole configuration for three-phase power distribution systems.
• Withdrawable moving-part design for convenient switchgear servicing and maintenance.
• Advanced PR122/P-LSI electronic trip unit for configurable circuit protection.
• 85 kA ultimate short-circuit breaking capacity at 400 V AC.
• Provides long-time, short-time and instantaneous protection.
• Suitable for critical industrial, commercial and infrastructure distribution systems.

Key Features

• ABB SACE New Emax E2S series.
• 1000 A rated current.
• Three-pole construction.
• Withdrawable version with moving-part configuration.
• PR122/P electronic trip unit.
• LSI protection functions: long-time, short-time and instantaneous.
• 690 V AC rated operational voltage.
• 1000 V rated insulation voltage.
• 12 kV rated impulse withstand voltage.
• 85 kA Icu at 380–440 V AC.
• 65 kA Icu at 500–690 V AC.
• Electronic protection settings support selective coordination within low-voltage distribution systems.

Reliable Circuit Protection for Power Distribution

Air circuit breakers such as the ABB SACE Emax E2S protect high-current low-voltage distribution systems against overload and short-circuit conditions. The combination of robust switching technology and an electronic trip unit allows the breaker to monitor current and disconnect the protected circuit when configured protection thresholds are exceeded.

The PR122/P-LSI trip unit provides adjustable long-time, short-time and instantaneous protection functions, supporting effective selective coordination between protective devices. The withdrawable construction also allows the breaker moving part to be isolated and removed from compatible switchgear, simplifying servicing and helping reduce maintenance disruption in critical electrical distribution installations.

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 and protection systems.
• Main incomer and high-current feeder protection.
• Withdrawable switchgear assemblies.