The 3SB3000-4PD01 is a line of Siemens industrial control devices. This device is a multi-functional line selector switch with LED indicators, complete with 4-pole switching, 2-position double head, indicating contacts and available in operating voltage of 24V DC. This switch is designed for use in automation systems and is certified for use in hazardous locations. The switch offers multiple functions such as, manual operators, signal lamps, status lights, and safety switches. This selector switch is also equipped with arc-fault detection circuits and overload protection to ensure safe and reliable operation in demanding environments.