E1N1250PR121/P-LSIGIN=1250A4PFHR ABB - 1SDA055738R1

The E1N1250PR121/P-LSIGIn=1250A4pFHR ABB - 1SDA055738R1 is a high-performance circuit breaker designed for reliable protection and control of electrical circuits. It is part of ABB's Emax 2 series, known for its advanced features and robust construction. This particular model has a rated current of 1250A and a breaking capacity suitable for demanding applications. The PR121/P trip unit provides comprehensive protection functions, including LSIG (Long-time, Short-time, Instantaneous, and Ground-fault) settings. These settings allow for precise customization of protection characteristics to match specific load requirements. The 'A4p' designation indicates a four-pole configuration, suitable for three-phase systems with a neutral conductor. The 'FHR' likely refers to the specific terminal type or connection arrangement. ABB circuit breakers are widely used in industrial, commercial, and infrastructure applications to ensure electrical safety and system uptime. This model offers advanced communication capabilities for remote monitoring and control. Its modular design allows for easy installation and maintenance.