1SDA055749R1 ABB E1N 1250PR 122/P – LSIGIn = 1250A 3p WMP

The ABB 1SDA055749R1 E1N 1250 PR122/P-LSIG is a moving part for the SACE Emax series circuit breakers, designed for advanced protection and safety in medium-voltage systems. Equipped with a PR122/P-LSIG overcurrent release unit, it delivers highly customizable protection functions for industrial and commercial electrical applications. Here’s an in-depth overview of its specifications, features, and applications:

Key Specifications:

• Model: ABB 1SDA055749R1 E1N 1250 PR122/P-LSIG
• Rated Current (In): 1250A
• Poles: 3-pole configuration, ideal for three-phase systems.
• Protection Unit: PR122/P-LSIG, offering multiple layers of protection.
• Auxiliary Contacts: Includes 4 auxiliary contacts, which enable effective monitoring and control.
• Breaker Position Indicator: Displays Open/Closed status, supporting operational safety and ease of maintenance.

Features:

• Advanced Overcurrent Protection: The PR122/P-LSIG unit allows for precise adjustment of protection settings, ensuring safety from overloads, short circuits, and ground faults.
• Rugged Design: Built for durability in industrial conditions, it features high-quality materials for long-lasting performance and resilience.
• Safety and Operational Efficiency: The Open/Closed position indicator provides quick status confirmation, enhancing operator safety during maintenance and inspection.

Applications:

The ABB 1SDA055749R1 E1N 1250 PR122/P-LSIG is ideal for a range of medium-voltage applications, including electrical distribution and control systems in industrial facilities, commercial buildings, and manufacturing plants. It is particularly suited for environments that require uninterrupted power and precise fault protection.

Additional Information:

• Compatibility: Tailored for the ABB SACE Emax series, suitable for both new installations and retrofits.
• Reliable and Efficient: Delivers consistent protection, contributing to system uptime and reducing the risk of electrical damage due to overcurrent conditions.