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Generator Transfer Switch Wiring


As a homeowner in Cranston, Providence, Rhode Island, you are familiar with the unpredictable weather that can often result in power outages. This can be especially troublesome during extreme weather conditions, such as a blizzard or a hurricane. In these situations, having a generator installed can provide you and your family with a sense of security and stability. However, installing a generator is not enough; proper wiring is crucial to ensure safe and reliable power transfer. This is where a generator transfer switch comes in.

At B&K Electric, a family-owned and operated electrical business based in Warwick, RI, we have been providing electrical repair, panel maintenance, and installation services to residents of Cranston, Warwick, and all of Rhode Island for over seventeen years. Our team of highly skilled and licensed electricians specializes in residential electrical work and is well-versed in generator transfer switch wiring. In this article, we will provide you with a comprehensive guide on generator transfer switch wiring and why it is necessary for your home.

Why Do You Need a Generator Transfer Switch?

In the event of a power outage, having a generator installed can provide you with backup power to keep your essential appliances running. However, connecting your generator directly to your home’s electrical system without a transfer switch can be dangerous and create hazards for utility workers and equipment. A generator transfer switch allows you to safely and effectively switch between your generator and utility power, preventing any mishaps or damage to your home’s electrical system.

What Is a Generator Transfer Switch?

A generator transfer switch is a device that is installed between your generator and your home’s electrical system. It controls the flow of electricity from your generator to your home’s circuits, preventing them from accidentally feeding back into the utility grid. There are several types of generator transfer switches, including manual, automatic, and combination switches. Manual switches require you to physically switch between your utility power and generator power, while automatic switches do so automatically, and combination switches allow for both manual and automatic transfer.

Proper Wiring and Installation of a Generator Transfer Switch

Now that you understand the importance of a generator transfer switch, it is essential to ensure that it is properly wired and installed. This is where hiring a licensed and experienced electrician, like B&K Electric, is crucial. Here are the steps we follow for safe and efficient transfer switch wiring and installation.

1. Select the Appropriate Location

The first step in installing a generator transfer switch is selecting the right location. The switch should be mounted indoors, in close proximity to the electrical panel, and on an exterior wall to allow for easy access for your generator’s power cord.

2. Shut Off Power

Before beginning any work, the electrician will shut off the main power to your home to prevent any electrical shocks or accidents.

3. Install the Transfer Switch

The transfer switch is usually mounted on a metal template on the designated location. The electrician will then use a spiral pipe and a junction box to connect the switch to your home’s electrical panel. This ensures that the transfer switch easily connects to the circuits in your home.

4. Connect Generator Wiring

The next step involves connecting the generator wiring to the transfer switch. The electrician will install the inlet box, which is a waterproof box that is mounted close to your generator. The generator cord is then plugged into the inlet box, and the other end is connected to the transfer switch.

5. Test the System

Once the wiring is complete, the electrician will test the system to ensure that the transfer switch is working correctly. They will also test the generator and make sure that it is producing enough power to run your essential appliances.

6. Label the Circuits

Lastly, the electrician will label each circuit on the transfer switch and electrical panel, indicating which circuit is connected to the generator and which one is connected to the utility power.

Key point

A generator transfer switch is a crucial component of your home’s electrical system, providing you with safe and reliable backup power during power outages. It is essential to have it properly wired and installed by a licensed and experienced electrician to prevent any safety hazards. At B&K Electric, we understand the importance of proper generator transfer switch wiring and installation and take pride in delivering top-notch service to our community in Cranston and the greater Providence area. Contact us today for all your electrical needs!


Generator Transfer Switch,

Electrical Repair,

Home Improvement