1SDA056312R1 ABB E3S3200 PR121/P-LI 3200 A 4-Pole Fixed Air Circuit Breaker

Why Choose the ABB 1SDA056312R1 E3S3200 Air Circuit Breaker?

The ABB 1SDA056312R1 is a high-performance SACE Emax E3S air circuit breaker (ACB) designed for protection and switching in high-current low-voltage electrical distribution systems. As part of the ABB New Emax E3 series, this four-pole fixed circuit breaker combines a 3200 A rated current with the PR121/P-LI electronic overcurrent release for dependable protection of industrial, commercial and infrastructure power installations.

The E3S3200 is equipped with ABB's PR121/P-LI electronic trip unit, providing long-time overload and instantaneous short-circuit protection. This LI protection configuration provides essential electronic protection for high-current distribution circuits while the four-pole construction enables switching and protection across three phase conductors and the neutral conductor.

With a rated current of 3200 A, a four-pole fixed configuration and rear horizontal terminals, the 1SDA056312R1 is engineered for permanent installation within high-current switchboards and power distribution assemblies. Its robust SACE Emax construction and electronic protection make it suitable for main distribution applications where reliable switching, high current capacity and straightforward switchboard integration are required.

Key Advantages

• High-performance ABB SACE Emax air circuit breaker for demanding low-voltage power distribution.
• 3200 A rated current for high-current industrial and commercial installations.
• PR121/P-LI electronic overcurrent release for overload and instantaneous short-circuit protection.
• Four-pole construction supports switching and protection of three-phase systems with a neutral conductor.
• Fixed mounting configuration for permanent integration into low-voltage switchboards.
• Rear horizontal terminals facilitate connection to switchboard busbars and conductors.
• Four auxiliary contacts support circuit-breaker status monitoring and control.
• Open/closed circuit-breaker position indication provides clear operational status.

Key Features

• ABB SACE Emax E3S3200 series air circuit breaker.
• 3200 A rated current.
• Four-pole configuration.
• Fixed circuit-breaker version.
• PR121/P-LI R3200 electronic overcurrent release.
• LI protection covering long-time overload and instantaneous short-circuit protection.
• Designed for high-current low-voltage electrical distribution.
• Rear horizontal terminals for main circuit connections.
• Four auxiliary contacts for status and control functions.
• Circuit-breaker open/closed position indication.
• Suitable for main incomer and high-current feeder applications.
• Robust fixed construction for integration into industrial switchgear.

Reliable Protection for High-Current Power Distribution

Air circuit breakers such as the ABB E3S3200 provide switching and protection for high-current low-voltage distribution systems. The electronic trip unit monitors current conditions and enables the breaker to interrupt overload and short-circuit faults, helping protect busbars, cables, transformers and connected electrical equipment from potentially damaging overcurrents.

The integrated PR121/P-LI electronic trip unit provides long-time overload and instantaneous short-circuit protection. Combined with the breaker's 3200 A current rating, four-pole construction and fixed switchboard format, the 1SDA056312R1 is particularly suited to main incomers and high-current distribution circuits where dependable electronic protection and neutral switching are required.

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.
• Three-phase four-wire electrical distribution systems.
• Generator and transformer distribution circuits.
• Power control centres and switchgear assemblies.
• Infrastructure and utility installations.