1SDA057867R1 ABB E4S-A 3600 PR122/P-LSIG 3600 A 3-Pole Fixed Air Circuit Breaker

Why Choose the ABB E4S-A 3600 PR122/P-LSIG Air Circuit Breaker?

The ABB E4S-A 3600 PR122/P-LSIG, order code 1SDA057867R1, is a high-performance SACE Emax air circuit breaker designed for demanding low-voltage power distribution systems. This three-pole fixed breaker combines the E4S-A platform with a PR122/P-LSIG R3600 electronic overcurrent release, providing comprehensive protection for critical high-current electrical circuits.

Rated at 3600 A, the breaker provides LSIG protection comprising long-time overload, short-time short-circuit, instantaneous short-circuit and ground-fault functions. Its electronic protection capabilities support coordinated fault management in industrial, commercial and infrastructure distribution networks where dependable protection and continuity of electrical service are important.

The 1SDA057867R1 is a three-pole fixed version with rear horizontal terminals. Its configuration also includes four auxiliary contacts and open/closed position indication, providing useful breaker status information for integration with switchboard signalling, monitoring and control systems.

Key Advantages

• High-current 3600 A SACE Emax air circuit breaker.
• PR122/P-LSIG R3600 electronic overcurrent release for comprehensive protection.
• LSIG functionality provides long-time, short-time, instantaneous and ground-fault protection.
• Three-pole fixed configuration for three-phase power distribution.
• Rear horizontal terminals for fixed switchboard installation.
• Four auxiliary contacts support breaker status signalling and control integration.
• ABB E4S-A platform designed for demanding high-current distribution duties.

Key Features

• ABB SACE Emax E4S-A circuit breaker platform.
• 3600 A rated current.
• Three-pole construction.
• Fixed breaker execution.
• Rear horizontal terminals.
• PR122/P-LSIG R3600 electronic overcurrent release.
• Long-time overload protection.
• Short-time short-circuit protection.
• Instantaneous short-circuit protection.
• Ground-fault protection.
• Four auxiliary contacts with open/closed position indication.

Advanced LSIG Protection for High-Current Distribution

Air circuit breakers such as the ABB SACE Emax E4S-A provide switching, isolation and fault protection within high-current low-voltage distribution systems. Electronic trip technology monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect switchgear, conductors and connected electrical equipment.

The PR122/P-LSIG release combines long-time overload protection, short-time protection for selective coordination, instantaneous protection against severe short circuits and ground-fault protection. This comprehensive protection arrangement makes the E4S-A 3600 suitable for main distribution circuits and high-current feeders where reliable and coordinated electrical protection is required.

Typical Applications

• Industrial low-voltage switchboards.
• Main incoming electrical distribution circuits.
• High-current distribution feeders.
• Manufacturing and process plants.
• Commercial and infrastructure power systems.
• Transformer and generator distribution systems.