When choosing a float switch to control the operation of a pump, the first question that needs to be answered is about amperage. This is needed when controlling a pump because you have to be able to pump out a range of water and it also keeps the float from being interrupted by turbulence in the water. These are generally are wide angle which means they have to move 90 degrees to switch to the “ON” or “OFF” position. They can handle higher amperages than control switches. Pump switches are designed to control the operation of a submersible pump. Pump switches are designed to turn a submersible pump on and off, while control switches are designed to be connected to a control panel and are mainly used for high water alarms. The “PUMP DOWN” switches are most common in the septic system industry.įloats can be divided into two main categories: Pump Switches and Control Switches. These can be used for filling tanks or low level alarms. They have normally closed contacts, which means they are active in the lowered position and deactivate when raised. The floats labeled “PUMP UP” are opposite. These can be used for emptying tanks or for high level alarms. The floats labeled “PUMP DOWN” have what we call normally open contacts, which means they are inactive in the lowered position and activate when raised. This is in reference to the position the float needs to be in to activate. On our website you will see the floats labeled “PUMP DOWN” or very rarely “PUMP UP”. In this article we will discuss in further detail how to choose the correct float for your application. At Septic Solutions, we carry nearly 20 different float switches, and these are only the most popular models. Choosing A Float Switch - Everything You Need to Knowįinding the correct float switch for your application can become very confusing, due mainly to the fact that there are just so many to choose from.
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