Rankedgenerators is audience-supported. When you buy through links on this site, we may earn an affiliate commission that we use for site maintenance. Learn more


How to Connect Generator to House Without Transfer Switch?

How to Connect Generator To House Without Transfer Switch
Written by Jamie Masterson

Transfer switches are necessary because they safely link the generators to the electrical wiring in your home. The transfer switch allows the generator to function securely without harming any electrical wiring once it is installed inside your electrical utility panel site.

Unfortunately, because it is expensive, many try to find other methods to attach generators to a home without using a transfer switch. Generators may still run without such a transfer switch, but doing so is unsafe and dangerous. Here’s how to properly connect your generator to your home without using a transfer switch.

How to Connect Generator To House Without Transfer Switch? – Step By Step

How to Connect Generator To House Without Transfer Switch

1. Equipment Needed

  • Breaker – You must choose a breaker that can handle both your home’s and generator’s power needs.
  • Interlock kit – This is an important component since it connects your generator to the panel board. Therefore, it is important to remember that it must entirely match the generator type otherwise you may have issues either during or after the procedure.
  • Wires – Electrical lines are also required since they improve the security of the connection. As a result, using a diversity of colored wires is recommended.
  • Tools and gear– Without the proper equipment and tools, you won’t be able to finish the process. The people conducting the work should have everything they need, from drills and screwdrivers to wrenches and pliers. Aside from these, you’ll need gloves and other protective gear to keep you safe against electricity and thus the hazards it might bring.

2. Maintain a safe environment

Always put safety first. Using safety precautions is usually the first stage when installing equipment, no matter how large or little it is. To protect yourself, put on safety glasses or goggles and gloves. Be sure that your generator is not connected to the circuit breaker inside your fuse panel since this might result in a fire. Also, avoid using a male-to-male connector or connecting your generator to the circuit box directly.

3. Determine the Amount of Power Used by Your Appliances

Every day, people require a variety of appliances in their homes. As a result, you need to determine how much electricity each device requires to work properly to ensure that the generator’s power adequately sustains them all. As a comparison, a typical microwave may use up to 1,500W, but a lighting bulb can use as little as 150W. All of this brings us to the fact that you must first calculate the amount of electricity necessary in your home before hooking up the generator.

4. Inspect Your Wiring System

The electrical system in each house is unique. As a result, you should call the local company or authorities that supply your home’s electricity and inquire about the electrical installation that’s been installed. To avoid being misinformed, the advice should come from trustworthy sources that are familiar with your location. This is because different towns, states, and regions have unique regulations regarding wiring systems.

5. Determine the Amperage and Type Of Plug

The next stage would be to examine your generator amperage and plug type since you are familiar with the safety precautions and wiring system. The plug will assist in delivering electricity on both ends of your generator breaker. Furthermore, the plug has amperage markings on it. The amperage will assist you in adjusting the equipment if needed.

6. Make a Hole

Now take a drill and start to work on some drilling. The hole will be used to connect the cords from the generator to your home. The opening should be large enough to fit all of the cables. Also, be sure to make a hole in an area where the generator will be far away from you. Making the hole near your bedroom is not the best option, since the generator’s sounds may prevent you from getting a good night’s rest.

7. Put All Materials Together

The next stage is to put the components together, starting with the power socket on the external wall. Be sure that the electrical socket is a good distance away from the opening you made in the wall. You’ll have to connect and glue the conduits after you’ve installed the power inlet for optimal safety.

After that, connect your generator’s input plug. Simply remove a single cable from the conduit box at this phase, then press all of the remaining cables. The next step is to set up the breaker box so that the cables from the conduit block may be handled. It’s time to seal the breaker box after you’ve properly placed the cables as well as the switch retainer.

8. Double-Check That Everything Is Properly Connected

The person conducting the installation must take all precautions to avoid a fire that may harm the entire household. As a result, people with little or no knowledge of circuits must have a very experienced person examine the installation before finishing the procedure. In this manner, even if a fire occurs unintentionally, the insurance provider will not deny the claim owing to faulty wiring or other minor flaws.

Connecting the Generator With Transfer Switch vs. Without Transfer Switch

One of the most significant distinctions between the two methods is that connecting the generator without the transfer switch is less secure than connecting it with the transfer switch. A transfer switch is designed to switch the sources of power to your home. When switching back from your generator to a central device the electricity from the generator should never be routed through your central unit’s primary channel.

This step is critical since the generator’s electricity might be extremely dangerous if it malfunctions. The transfer switch prevents this from happening. With it, you may be confident that no electricity will create problems or harm to you and your nearby area.

Nevertheless, when a problem arises that requires immediate attention, such as a power outage or an electrical shortage, people want it restored swiftly and easily. That’s why they go to the generator and wish to connect it without the transfer switch.

However, as said before, owners who prefer this method should take the time to prepare all they need including tools, cables, and interlock kits. Although this is a very simple and quick method, connection without the transfer switch offers dangers to the home that you must consider before proceeding.

Safety Tips

  • Do not use any form of male-to-male plugs since it might harm the entire system.
  • Use a generator that isn’t directly linked to the circuit breaker.
  • Do not attempt to make any modifications without first shutting off the main switch.
  • If you wish to utilize a generator without the transfer switch, you must install the interlocking kit. It’s the only method to get out of a situation like this.
  • Educate yourself with your state’s laws and avoid doing anything that might be prohibited due to safety concerns.
  • If you’re unsure about attaching a generator to your home without the transfer switch, it’s a smart idea to get assistance to ensure the job is done correctly.

About the author

Jamie Masterson

With decade-long experience as a generator technician, Jamie has worked with USA’s top generator manufacturers and suppliers as an independent contractor.

The long years of service to the industry has taught Jamie the ins and outs of troubleshooting, repairing, and maintaining all kinds of generators in home, industrial and outdoor settings.

Jamie thinks this platform is a great opportunity to share his tips and tricks with you so you can make the most of such power equipment for better living.

Leave a Comment