The Pumpmaster Y-FSK-1 float switch turns a compatible pump on and off as the water level changes. The float sits in the water and tilts as the level rises or falls, operating the electrical switch inside.
It can be wired for either filling or emptying. For emptying a sump or tank, the pump starts when the water rises to the upper switching level and stops when it falls to the lower level.
For refilling a tank, the action is reversed: the pump starts when the water falls to the lower switching level and stops when it reaches the upper level. This lets the tank refill automatically without overflowing.
The switch has a 10m three-wire lead and a supplied counterweight. The mounting position and free cable length allow the float to move between its switching positions. Leave it clear of walls, pipes and other obstructions.
