Both 2 Way and 3 Way switches are SPDT switches. But 3 Way switches have an extra pin called Grounding pin, which is not present on 2-way switches. 2 Way Switches have 3 screws, whereas 3 Way Switches have 4 screws. But irrespective of that, in both cases, you can employ 2 switches to control the load.

What is a 3 way switch used for?

A single pole switch is used to control the light in a small closet or bathroom. Its called a single pole switch because there are two wires connected or separated by the switch mechanism. Theres also a ground wire to protect against electrical faults.

Can I use a 3 way smart switch as a 2 way?

Both switches work fine. No, you can use each switch for a different 3-way circuit. I also have one TP-Link 3-way switch and a Dimmer 3-way switch in the same circuit, NOTE: To use a dimmer, you have to have the TP-Link smart switch on the HOT side of the two 3-way switches.

Do you need 2/3-way switches?

The key ingredient is a special type of switch called a “three-way” switch. Youll need two of them, one to replace the existing switch and another for the new switch location. With these, youll have the convenience of turning a light on and off from two spots.

Is a 3 pole breaker 3 phase?

The three-pole breaker operates via the same method as a single-pole breaker. Used most often in a three-phase electrical system, a three-pole breaker connects three different conductors, such as is often required by heavy duty industrial motors.

Is there a 3 way smart switch?

There are two different types of 3-way smart switches to choose from. The first is a hardwired switch with a secondary wireless remote, which can be mounted in the place of the other light switch. The second is two hardwired smart dimmer switches, one in a master configuration and the other setup as an add-on.