The common wire in an industrial electrical circuit is the neutral wire or ground wire. Thermostats can get this constant power through a common wire or c wire it is easy to see if you already have a c wire connected to your system.
Emerson Sa11 Common Wire Kit For Sensi Wi Fi Thermostats
What is a common wire. A two way switch has a terminal called common because terminals l1 and l2 have it in common can be at the same electrical potential as it generally. The wire that carries electricity to the source is the hot wire. Many conventional non connected thermostats dont need a c wire to function. Find out more about the common wire in an industrial electrical circuit with help from an electrical contractor with over 25 years of experience in the electrical industry in this free video clip. Simply remove your current thermostat face from its. But today most wi fi thermostats have new features such as wi fi radios and led color screens that require the unit be powered at all times.
When it works as a connecting wire the wire connects at least two wires of a circuit together. The term common is applied to the conductor that is used in any configuration of the circuit. A common wire is either a connecting wire or a type of neutral wiring depending on the electrical circuit. A ceiling fan. Location does not matter. The common wire is the only wire that needs to be attached to a particular screw often the dark one on the 2 way switch.
Your house wiring works on the same principle just on a larger scale and at higher voltages. While the common wire must be connected in a specific location on the two way switch the traveler wires may be connected to either of the remaining terminals. Is that white or black wire. It is easy to confuse common with the neutral wire and in many cases this is true. In household wiring this wire is usually black though. Standard wiring design in us.
If you recall your science classes in school you probably built simple circuits using a battery and a light bulb. Homes involves a neutral wire at the ground potential and two hot wires of 120 volts each. Electrical current travels from the source to the bulb then back to the source. Stack exchange network stack exchange network consists of 177 qa communities including stack overflow the largest most trusted online community for developers to learn share their knowledge and build their careers. Two points are said to be common if they have the same potential voltage in this sense neu. The common wire is a trick that saves wiring and simplifies electrical panel design.
A transformer supplies the house and either of the two hot wires can provide electricity to the. One of the hot wires swings negative and the other one swings positive. What is a c wire or common wire and how do i know if i have one.
Gallery of What Is A Common Wire
