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Pump Float Switches

Pump Float Switches

Commonly used with sump and condensate pumps, float switches help prevent damage to facilities or equipment by monitoring the liquid level in a tank or sump pit and triggering a pump, alarm, or control panel if the liquid rises too high or falls too low. Use these switches with pumps that have built-in thermal overload protection.

Standard Tether

Tethered float switches allow pumps to run longer and provide more cooldown time between pump cycles than vertical or diaphragm floats, resulting in less wear and tear to the pump. They are connected to the pump by a cable and are suitable for use in large-diameter tanks or sump pits where the float has room to move freely, as it may snag if the tank or sump pit is too small. The float engages the switch to turn the pump on or off when the tank's liquid level goes above or below a certain set point.

(NO) Normally Open Operation — Adjustable Mechanical Switch

115V AC

115V/230V AC

125V/250V AC

230V AC

Wide Angle Tether

Use wide-angle tether float switches in tanks where the liquid level rises sharply and large quantities of liquid need to be removed quickly from the tank. They have a wider activation angle than other tether and vertical switches, which results in longer pump cycles and less wear and tear on the pump. The float is connected to the switch with a cable, and should be used in a large-diameter tank to help prevent snagging.

(NO) Normally Open Operation — Adjustable Mechanical Switch

120V AC

120V/230V AC

230V AC

Narrow Angle Tether

Help prevent large shifts in the liquid level in a tank using these narrow-angle tether float switches. The tether-style float is connected to the switch with a cable, and when the float moves slightly above or below parallel it activates the switch to engage the pump. Ideal for applications where the liquid in a tank needs to stay at a stable level, these switches have a narrower activation angle than standard tether floats. They are suitable for use in tanks that are large enough for the float to move freely.

(NO) Normally Open — Fixed Mechanical Switch

125V/250V AC

Cable Weight Mount

Pipe Mount

Solid State

Get good reliability and long life with these switches, which don't have moving parts that can wear out or snag on the tank. Instead of a floating mechanism, these switches have solid-state electronic sensors that detect the liquid level in a tank and trigger a pump when the liquid level has climbed above a certain set point.

(NO) Normally Open — Fixed Solid-State Switch

120V AC

Chemical Resistant Tether

These float switches can withstand exposure to some chemicals without corroding. These tether-style switches are connected to the pump by a cable. When the float moves below a certain set point, it engages the switch to trigger the pump. They are for use in large-diameter tanks or sump pits where the float has room to move freely, as it may snag if the tank or sump pit is too small. Tethered float switches allow pumps to run longer and provide more cooldown time between pump cycles than vertical or diaphragm floats, resulting in less wear and tear to the pump.

(NO) Normally Open — Adjustable Mechanical Switch

115V AC

230V AC

Pilot Duty & Panel Controlled Tether

Wire these switches to a control panel or alarm to get a warning when the liquid level changes in your tank. They are commonly used in applications where it is vital to know when liquid levels in your tank have changed. These tether-style switches have a float that is connected to the control panel or alarm by a cable. When the float moves below a certain set point, it engages the switch to trigger the control panel or alarm. They are for use in large-diameter tanks or sump pits where the float has room to move freely, as it may snag if the tank or sump pit is too small. Tethered float switches allow pumps to run longer and provide more cooldown time between pump cycles than vertical or diaphragm floats, resulting in less wear and tear to the pump.

(NO) Normally Open — Adjustable Mechanical Switch

115V/230V AC

For Corrosive Liquids

Control the filling or draining of tanks that contain corrosive materials such as wastewater and sewage using these floats, which have a polypropylene body and PVC cable. These tether-style switches are connected to the pump by a cable. When the float moves below a certain set point, it engages the switch to trigger the pump. They are for use in large-diameter tanks or sump pits where the float has room to move freely, as it may snag if the tank or sump pit is too small. Tethered float switches allow pumps to run longer and provide more cooldown time between pump cycles than vertical or diaphragm floats, resulting in less wear and tear to the pump.

(NO-NC) Normally Open / Normally Closed — Adjustable Float Sensor Switch

250V AC

Tank Wall Mount

For Narrow Spaces requiring Vertical Controls

Ideal for narrow tanks and sump pits, these switches have a float attached to a stationary, vertical rod for controlled up-and-down movement of the float. They are less likely to get caught on the side of a tank than a tethered float switch, but have more frequent pump cycles, which means the pump doesn't have as much time to cool off between cycles.

(NO) Normally Open — Adjustable Mechanical Switch

115V AC

For High Temperature

These switches are designed to withstand higher fluid and operating temperatures than other float switches. They have a tether-style float that is connected to a pump by a cable. When the float moves below a certain set point, it engages the switch to trigger the pump. Use in large-diameter tanks or sump pits where the float has room to move freely, as it may snag if the tank or sump pit is too narrow. Tethered float switches allow pumps to run longer and provide more cooldown time between pump cycles than vertical or diaphragm floats, resulting in less wear and tear to the pump.

(NO) Normally Open — Adjustable Mechanical Switch

115V AC

115V/230V AC

Long- Life Diaphragm Style Switches

Because they use the pressure changes of the liquid instead of a traditional float to detect liquid levels in a tank, these switches typically last longer and are more reliable than tethered and vertical switches. Pressure inside the tank increases as the liquid level rises, and this causes the diaphragm to become concave, triggering the switch that turns on the pump. They can be used in narrow tanks since they don't have external moving parts.

(NO) Normally Open — Mechanical Switch

115V AC

For Upright Pedestal Pumps

Replace worn pedestal pump switches with these long-lasting switches. They connect to your float and pump to help control the liquid level in your tank or sump pit and are commonly used in residential applications.

(SPDT) Single-Pole Double-Throw Operation — Adjustable Mechanical Switch

250V AC