Which Is The Right Power Transfer Switch

You need to have a power transfer switch when you install a backup generator on your property whether it is residential, commercial or industrial. It is important to consider where you will make the installation since the kind of switch and generator can depend upon this. There are generators that come with their own switches, but you may have to find one separately from your generator. If you have to find a switch, you can choose from an automatic switch, a manual switch or a combination switch.


An automatic transfer switch offers more in the way of convenience because you do not have to be physically present to switch power from your main line to your alternative generator. The switch will sense when there is a brownout or surges in the main power line. When this occurs, the switch begins to power up the generator. If there is a complete loss of power, the switch then turns on the backup generator. It makes this switch safely because it reverts to the off function before switching power so that the current does not arc.

Many homes actually use a manual power transfer switch because the automatic switches usually do not offer the advanced features found on a manual switch. Of course, you have to physically flip the switch yourself when there is a power outage. You can also look for a combination switch. With this switch, you can automatically activate, monitor, shut down and start up the switch. However, you will have to control all other functions manually. Still, you will find that convenience of keeping the refrigerator and other major appliances running even if you are away from home.

You have to consider the pros and cons of each switch as you are making your choice. Of course, automatic switches are very convenient, but will you be able to switch power sources for reasons other than a power outage? You need to know the wattage of your generator because your switch needs to be compatible and able to handle the generator’s output. When you have made the choices, you should then hire an electrician to do the actual installation.


Using a power transfer switch means you do not have to run multiple extension cords from your home to the outside of your home to power the generator. Not only can this be dangerous because cords are exposed to debris and standing water, but it is very inconvenient. Many states have regulations that require you to have a transfer switch, so you may not need to worry about this detail anyway. However, you still want to make sure you find the switch that is best for your needs and gives you the backup power you expect.