float switch is a device used to detect the level of liquid within a tank. The switch may be used in a pump, an indicator, an alarm, or other devices.
A very common application is in surface and submersible pumps where the switch detects the rising level of liquid in the tank and energizes the electrical pump which then pumps liquid out until the level of the liquid has been substantially reduced, at which point the pump is switched off again.
Float switches are often adjustable and can include substantial hysteresis. That is, the switch's "turn on" point may be much higher than the "shut off" point, i.e empting and filling operations.
- Directly Controls pumps up to 1/2 HP at 120 Volts or 220 Volts - Up to 12 Amps continuous or 13.3 non continuous AC Amps - 12 VDC motor loads up to 13.3 Amps. - Mercury Free, suitable for use in septic, sump, and potable water applications - Cable is Coated with PVC / Thermoplastic insulation - Internally Contains a Stainless Steel Ball - Comes equipped with optional adjustable counterweight. - Manufactured in China - Two year guarantee against manufacturing defects - Constructed with non-toxic polypropylene - Float dimensions are 4.1 in x 3 in x 1.6 in (105 x 78 x 41 mm) - Rated for indoor or outdoor use: operating temperatures 32 to 140F (0 to 60C)