The B100T20 is a versatile selector switch from the B series. With its 4A current rating and 250V AC voltage rating, it offers reliable and efficient control. The switch features a plastic construction and a 22mm diameter, making it easy to integrate into different systems. It has a 1NO (0-I) configuration and a stay put mechanism, providing convenient operation. With its IP50 rating, it offers protection against dust and is suitable for various industrial environments.