1SDA055909R1 ABB E2N 1600 PR122/P-LSIG 1600A 3-Pole Withdrawable Air Circuit Breaker Moving Part

Why Choose the ABB 1SDA055909R1 E2N 1600 Air Circuit Breaker?

The ABB 1SDA055909R1 is a SACE Emax E2N 1600 withdrawable air circuit breaker moving part designed for dependable switching and protection in high-current low-voltage power distribution systems. This three-pole unit combines a 1600 A rated current with ABB's PR122/P-LSIG electronic overcurrent release, providing comprehensive protection for demanding industrial, commercial and infrastructure electrical installations.

As part of the ABB SACE Emax range, the E2N 1600 is engineered for protection of switchboards, distribution networks, transformers and high-current feeders. The PR122/P-LSIG release provides long-time, short-time, instantaneous and earth-fault protection functions, helping coordinate protection against overloads, short circuits and earth-fault conditions throughout low-voltage distribution systems.

This model is supplied as the moving part of a three-pole withdrawable circuit breaker. The E2N 1600 frame has a rated uninterrupted current of 1600 A at 40 °C, an ultimate short-circuit breaking capacity of 65 kA at 415 V AC and a short-time withstand current of 55 kA for 1 s, providing robust performance for high-current switchgear applications.

Key Advantages

• High-capacity 1600 A air circuit breaker moving part for low-voltage power distribution.
• Three-pole configuration for three-phase electrical systems.
• Withdrawable (W) construction supports maintainable and serviceable switchboard installations.
• Advanced PR122/P-LSIG electronic overcurrent release.
• LSIG functionality provides long-time, short-time, instantaneous and earth-fault protection.
• 65 kA ultimate short-circuit breaking capacity at 415 V AC for demanding distribution applications.

Key Features

• ABB SACE Emax E2N 1600 circuit breaker moving part.
• 1600 A rated uninterrupted current at 40 °C.
• Three-pole circuit breaker configuration.
• Withdrawable (W) version.
• PR122/P-LSIG electronic trip unit.
• Long-time overload protection.
• Short-time and instantaneous short-circuit protection.
• Integrated earth-fault protection.
• 65 kA ultimate short-circuit breaking capacity at 415 V AC.
• 55 kA short-time withstand current for 1 s.

Comprehensive LSIG Protection for High-Current Distribution

Air circuit breakers such as the ABB SACE Emax E2N provide switching, isolation and automatic overcurrent protection for high-current low-voltage distribution circuits. The electronic trip unit monitors circuit conditions and initiates breaker operation when configured protection thresholds are exceeded, helping protect switchgear, conductors and connected electrical equipment against damaging overload, short-circuit and earth-fault currents.

The PR122/P-LSIG release gives this E2N 1600 long-time, short-time, instantaneous and earth-fault protection capabilities for effective coordination within electrical distribution systems. Combined with its 1600 A rating, three-pole arrangement, withdrawable construction and E2N short-circuit performance, the ABB 1SDA055909R1 is well suited to demanding high-current switchboard installations.

Typical Applications

• Industrial low-voltage switchboards and distribution panels.
• Main incoming circuit protection.
• High-current three-phase distribution feeders.
• Transformer secondary circuit protection.
• Manufacturing plants and process facilities.
• Commercial and infrastructure power distribution systems.