1SDA056311R1 ABB E3S3200 PR123/P-LSIG 3200 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB 1SDA056311R1 E3S3200 Air Circuit Breaker?

The ABB 1SDA056311R1 is a high-performance SACE Emax E3S air circuit breaker (ACB) designed for protection and switching in demanding low-voltage electrical distribution systems. As part of the ABB New Emax E3 series, this three-pole fixed circuit breaker combines a 3200 A rated current with the advanced PR123/P-LSIG electronic overcurrent release for comprehensive protection of high-current industrial, commercial and infrastructure installations.

The E3S3200 is equipped with ABB's PR123/P-LSIG electronic trip unit, providing long-time, short-time, instantaneous and ground-fault protection. This LSIG configuration provides comprehensive protection against overloads, short circuits and earth faults, making the breaker well suited to critical distribution systems requiring advanced electronic protection and selective coordination.

With a rated uninterrupted current of 3200 A, a three-pole fixed configuration and rear horizontal terminals, the 1SDA056311R1 is engineered for integration into high-current low-voltage switchboards. The E3S performance level provides a rated ultimate short-circuit breaking capacity of 75 kA at 400 V AC, making it suitable for installations with substantial prospective fault currents.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 3200 A rated uninterrupted current for high-current industrial and commercial applications.
• PR123/P-LSIG electronic overcurrent release for advanced circuit protection.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• 75 kA short-circuit breaking capacity at 400 V AC for systems with high prospective fault currents.
• Three-pole fixed construction for permanent installation within low-voltage switchboards.
• Rear horizontal terminals provide practical connection to switchboard busbars and conductors.
• Four auxiliary change-over contacts and open/closed position indication support monitoring and control.

Key Features

• ABB SACE Emax E3S3200 series air circuit breaker.
• 3200 A rated uninterrupted current.
• Three-pole configuration.
• Fixed circuit-breaker version.
• PR123/P-LSIG electronic overcurrent release.
• LSIG protection covering long-time, short-time, instantaneous and ground-fault protection.
• Rated operational voltage of 690 V AC.
• 75 kA rated ultimate short-circuit breaking capacity at 400 V AC.
• Adjustable overload protection from 1280–3200 A.
• Adjustable instantaneous short-circuit protection from 4800–48000 A.
• Rear horizontal terminals for main circuit connections.
• Four auxiliary change-over contacts with circuit-breaker open/closed position indication.

Advanced Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E3S3200 provide switching, isolation and protection for high-current low-voltage distribution systems. By detecting overload, short-circuit and ground-fault conditions, the electronic protection system enables the breaker to interrupt potentially damaging fault currents and help protect busbars, cables, transformers and connected electrical equipment.

The integrated PR123/P-LSIG electronic trip unit provides long-time, short-time, instantaneous and ground-fault protection for comprehensive fault management. Combined with the E3S breaker's 3200 A current rating and 75 kA short-circuit performance, the 1SDA056311R1 is particularly suited to main incomers, high-current feeders and critical distribution circuits requiring advanced protection.

Typical Applications

• Low-voltage main distribution switchboards.
• High-current industrial power distribution systems.
• Manufacturing and process plants.
• Large commercial building electrical distribution.
• Main incomer and high-current feeder protection.
• Generator and transformer distribution circuits.
• Installations requiring ground-fault protection.
• Power control centres and switchgear assemblies.
• Infrastructure and utility installations.