1SDA056890R1 ABB E4V3200 PR121/P-LSIG 3200A 4P Fixed Air Circuit Breaker

Why Choose the ABB E4V3200 PR121/P-LSIG 3200A 4P Air Circuit Breaker?

The ABB E4V3200 PR121/P-LSIG, order code 1SDA056890R1, is a high-performance SACE Emax E4V air circuit breaker designed for protection and switching in high-current low-voltage electrical distribution systems. Rated at 3200 A, this four-pole fixed circuit breaker combines the ABB SACE Emax platform with a PR121/P-LSIG R3200 electronic overcurrent release.

The PR121/P-LSIG release provides long-time (L), short-time (S), instantaneous (I) and earth-fault (G) protection, delivering comprehensive protection against overload, short-circuit and earth-fault conditions. The combination of short-time and earth-fault functions supports selective protection and dependable fault management for main feeders, busbars and other critical circuits.

This version is supplied as a four-pole fixed circuit breaker with rear horizontal terminals. The E4V performance level is engineered for demanding high-fault-level applications, while the fixed construction provides a robust solution for permanent integration into industrial, commercial and infrastructure switchboards.

Key Advantages

• High-current 3200 A SACE Emax E4V air circuit breaker for demanding low-voltage distribution.
• Four-pole configuration provides switching and protection across four conductors.
• PR121/P-LSIG electronic overcurrent release provides long-time, short-time, instantaneous and earth-fault protection.
• Integrated earth-fault protection provides additional protection against ground-fault conditions.
• Short-time protection supports selective coordination between protective devices.
• Fixed construction provides robust permanent integration into electrical switchboards.
• Rear horizontal terminals provide a practical connection arrangement for switchboard busbars.
• Four auxiliary contacts and open/closed position indication support switchboard monitoring and control.

Key Features

• ABB SACE Emax E4V series.
• 3200 A rated current.
• Four-pole circuit-breaker configuration.
• PR121/P-LSIG R3200 electronic overcurrent release.
• Long-time overload protection (L).
• Short-time short-circuit protection (S).
• Instantaneous short-circuit protection (I).
• Earth-fault protection (G).
• Fixed execution.
• Rear horizontal main terminals.
• Four auxiliary contacts.
• Circuit-breaker open/closed position indication.

Comprehensive 3200A Protection for Critical Power Distribution

The ABB SACE Emax E4V platform is designed for high-capacity low-voltage distribution systems where dependable circuit protection is essential. The PR121/P-LSIG electronic release combines long-time overload, short-time short-circuit, instantaneous short-circuit and earth-fault protection, helping safeguard busbars, feeders and connected electrical equipment against a broad range of electrical faults.

The E4V3200 PR121/P-LSIG combines a substantial 3200 A current rating with four-pole construction, fixed installation and rear horizontal terminals. These characteristics make it particularly suitable for main switchboards and other high-capacity distribution assemblies requiring comprehensive electronic overcurrent protection and robust ABB SACE Emax construction.

Typical Applications

• Main low-voltage electrical distribution switchboards.
• High-capacity industrial power distribution systems.
• Main incoming and high-current feeder protection.
• Commercial and infrastructure electrical distribution.
• Manufacturing and process-industry switchgear.
• Transformer and generator distribution systems.
• High-current busbar and distribution-board protection.
• Electrical installations requiring four-pole switching and earth-fault protection.