This Danfoss pressure control RT 116 017-520366 is a reliable switch that ensures efficient pressure control in your system. It is a one-position switch with a switch type fuse and is designed to work with one phase. The pressure control switch is ideal for use in various industrial and commercial applications. The switch is made by Danfoss, a trusted brand known for its quality products. It comes as a single pack with one outlet and is easy to install. This pressure control switch is perfect for those looking for a reliable and efficient switch to control their system's pressure.