2 Float Switch Wiring Diagram

If you are looking to control the water levels in a tank or a well, 2 float switches can be used to automatically turn a pump on and off as needed. Float switches are designed to detect the water level and send a signal to the pump to turn on or off accordingly. In this article, we will discuss the wiring diagram for a 2 float switch system.

What is a Float Switch?

A float switch is a device that detects the water level in a tank or well. It consists of a float that rises and falls with the water level, and a switch that is activated when the float reaches a predetermined level. Float switches are commonly used in the plumbing industry to control the water level in tanks and wells.

There are two types of float switches – normally open and normally closed. Normally open float switches are open when the water level is low and closed when the water level is high. Normally closed float switches are closed when the water level is low and open when the water level is high.

Wiring Diagram for 2 Float Switches

The wiring diagram for a 2 float switch system is fairly simple. The first float switch is wired to the pump to turn it on when the water level rises above a certain point, and turn it off when the water level falls below that point. The second float switch is wired to an alarm system to alert the homeowner when the water level reaches a critical point.

Here is the wiring diagram for a 2 float switch system:

Float Switch Wire Color Connection
Float Switch 1 Black Connect to the “Pump On” terminal on the pump relay
Float Switch 1 White Connect to the “Pump Off” terminal on the pump relay
Float Switch 2 Black Connect to the “Alarm” terminal on the alarm system
Float Switch 2 White Connect to the “Common” terminal on the alarm system

FAQ

Q: Can I use this wiring diagram for a single float switch system?

A: No, this wiring diagram is specifically for a 2 float switch system. If you only have one float switch, you will need a different wiring diagram.

Q: Are there any safety precautions I should take when wiring a float switch?

A: Yes, always make sure the power to the pump is turned off before working on the wiring. Also, make sure you are following all local electrical codes and regulations.

Q: What happens if one of the float switches fails?

A: If one of the float switches fails, the system may not work properly. It is important to regularly inspect and test the float switches to ensure they are functioning correctly.

Q: Can I use different wire colors?

A: Yes, as long as you are consistent with your wiring and labeling, you can use different wire colors.

Q: What type of pump should I use with a 2 float switch system?

A: You should use a pump that is compatible with a float switch system. Check the manufacturer’s specifications to ensure compatibility.

In conclusion, a 2 float switch system can be a reliable and efficient way to control the water levels in a tank or well. By following the wiring diagram and taking necessary precautions, you can set up a system that will work for years to come.