3RU1146-4HB0 SIEMENS

The 3RU1146-4HB0 is a Size S3 overload relay designed by Siemens for comprehensive motor protection. It offers reliable protection for motors operating within a current range of 36 to 50 Amperes. This overload relay is specifically designed to safeguard motors from thermal overload, phase failure, and phase imbalance, preventing costly damage and downtime. Featuring CLASS 10 tripping characteristics, it provides a balance between fast tripping for quick protection and delayed tripping to avoid nuisance tripping during motor starts. The relay is designed for direct mounting onto contactors, simplifying installation and saving space in control panels. It utilizes screw terminals for both the main and auxiliary circuits, ensuring secure and reliable connections. The 3RU1146-4HB0 offers versatile reset options, including manual, automatic, and remote reset, adapting to various application requirements. Its robust design and precise engineering make it a dependable choice for motor protection in diverse industrial applications. This overload relay helps to extend the lifespan of your motors and improve the overall reliability of your system.