1SDA057827R1 ABB E4S-A 3200 PR122/P-LI 3200 A 3P Fixed Air Circuit Breaker

Why Choose the ABB 1SDA057827R1 E4S-A 3200 Air Circuit Breaker?

The ABB 1SDA057827R1 is a high-performance SACE Emax E4S-A 3200 air circuit breaker designed for protection and switching in demanding low-voltage power-distribution systems. This UL three-pole fixed circuit breaker has a rated current of 3200 A and incorporates the PR122/P-LI R3200 electronic overcurrent release for dependable overload and instantaneous short-circuit protection.

As part of the ABB SACE Emax family, the E4S-A platform is engineered for high-current industrial and infrastructure distribution applications. The PR122/P-LI release provides long-time and instantaneous protection functions, while the breaker has an instantaneous reference current of 48,000 A, supporting effective protection of high-capacity electrical distribution circuits.

This specific version is a three-pole fixed breaker with rear horizontal terminals. It is equipped with four auxiliary contacts and open/closed position indication, providing useful signalling for integration into switchboard control and monitoring systems while its fixed construction provides a robust solution for permanent switchgear installations.

Key Advantages

• High-performance ABB SACE Emax E4S-A air circuit breaker for demanding power distribution.
• 3200 A rated current for high-current electrical systems.
• Three-pole fixed configuration for three-phase distribution networks.
• Advanced PR122/P-LI R3200 electronic overcurrent release.
• LI protection provides long-time overload and instantaneous short-circuit protection.
• 48,000 A instantaneous reference current.
• Rear horizontal terminals for fixed switchboard integration.
• Four auxiliary contacts support signalling, monitoring and control functions.

Key Features

• ABB SACE Emax E4S-A 3200 air circuit breaker.
• 3200 A rated current.
• Three poles.
• Fixed execution.
• Rear horizontal terminals.
• PR122/P-LI R3200 electronic trip unit.
• Long-time (L) overload protection.
• Instantaneous (I) short-circuit protection.
• 48,000 A instantaneous reference current.
• Four auxiliary contacts.
• Open/closed circuit-breaker position indication.
• UL configuration for low-voltage power-distribution applications.

Reliable Circuit Protection for High-Current Power Distribution

Air circuit breakers protect low-voltage power systems by interrupting abnormal current before overload or short-circuit conditions can cause serious damage to electrical infrastructure. Electronic protection helps safeguard cables, busbars, transformers and connected equipment while supporting reliable operation throughout high-capacity distribution networks.

The ABB PR122/P-LI release provides long-time overload and instantaneous short-circuit protection for demanding electrical systems. Combined with the robust SACE Emax E4S-A platform, 3200 A current rating and fixed rear-horizontal-terminal construction, the 1SDA057827R1 is well suited to high-current switchboards requiring dependable protection and switching performance.

Typical Applications

• Industrial low-voltage switchboards.
• Main incoming circuit protection.
• High-current feeder protection.
• Power-distribution switchgear.
• Manufacturing and process-industry electrical systems.
• High-current three-phase distribution networks.
• Commercial and infrastructure power installations.
• Generator and transformer distribution systems.