The 50R40029 is a 1-phase voltage monitor from Littelfuse Inc, designed for monitoring voltage levels in systems operating between 380-480V. This device is essential for ensuring safe operation and preventing equipment damage due to voltage fluctuations. Its compact design allows for easy installation in control panels, and it features robust construction for durability. The voltage monitor complies with industry standards, providing reliable performance in various applications. With its precise measurement capabilities, the 50R40029 enhances operational efficiency and protects electrical systems.