1SDA060739R1 ABB E3S-A 3200 PR122/P-LSI 3200 A 3P Fixed Air Circuit Breaker

Why Choose the ABB 1SDA060739R1 E3S-A 3200 Air Circuit Breaker?

The ABB 1SDA060739R1 is a SACE Emax E3S-A 3200 air circuit breaker designed for high-current low-voltage power distribution and protection. This three-pole fixed breaker combines a 3200 A rated current with ABB's advanced PR122/P-LSI electronic trip unit, providing long-time, short-time and instantaneous overcurrent protection.

Configured as a fixed three-pole breaker, the 1SDA060739R1 uses a VR-HR rear terminal arrangement for integration into compatible switchboards and busbar systems. The E3S-A frame provides a 65 kA short-circuit rating at 480 V, making this breaker suitable for substantial industrial and commercial distribution systems requiring high current capacity and dependable fault interruption.

The fitted PR122/P-LSI R3200 electronic release provides adjustable protection for coordinating the breaker with downstream and upstream protective devices. This configuration is identified with a 48,000 A instantaneous reference and combines ABB's Emax switching platform with electronic protection for demanding UL-oriented power distribution applications.

Key Advantages

• Genuine ABB SACE Emax E3S-A air circuit breaker.
• 3200 A rated current for high-capacity low-voltage distribution.
• PR122/P-LSI electronic trip unit for comprehensive overcurrent protection.
• Long-time, short-time and instantaneous protection supports selective system coordination.
• 65 kA short-circuit rating at 480 V for demanding distribution applications.
• 65 kA short-time current capability for robust fault withstand performance.
• Three-pole fixed execution for permanent switchboard installation.
• VR-HR rear terminal arrangement for integration with the corresponding switchboard busbar configuration.

Key Features

• ABB SACE Emax E3S-A 3200 circuit breaker.
• 3200 A rated current.
• Three-pole (3P) configuration.
• Fixed (F) execution.
• VR-HR rear terminal configuration.
• PR122/P-LSI R3200 electronic overcurrent release.
• Long-time (L) protection against sustained overload conditions.
• Short-time (S) protection for selective short-circuit protection.
• Instantaneous (I) protection against severe short-circuit currents.
• 48,000 A instantaneous reference.
• 65 kA short-circuit rating at 480 V.
• UL configuration for appropriately specified installations.

PR122/P-LSI Electronic Circuit Protection

The ABB PR122/P-LSI electronic trip unit combines three important protection functions. The L function protects against sustained overloads, the S function provides short-time protection that can assist selective coordination between protective devices, and the I function provides rapid instantaneous intervention during severe short-circuit conditions.

This combination makes the 1SDA060739R1 well suited to high-current distribution systems where protection coordination is important. Together with the 3200 A rating and 65 kA short-circuit capability at 480 V, the E3S-A provides a robust switching and protection solution for major feeders, incomers and other high-capacity low-voltage circuits.

Typical Applications

• Main low-voltage power distribution switchboards.
• High-current industrial electrical distribution systems.
• Commercial and infrastructure main distribution boards.
• Manufacturing and process plant switchgear.
• Transformer secondary protection and distribution.
• Generator distribution systems where the breaker characteristics match the system design.
• Main incomer and high-current feeder applications.
• Fixed switchgear requiring coordinated electronic LSI protection.