How To Connect Generator To House Without Transfer Switch

How to Connect Generator to House without Transfer Switch

A generator transfer switch is an automatic transfer switch used to transfer the power from the utility firm to the generator automatically and seamlessly. This secures that power is never impeded and that the equipment is not harmed by beginning and closing. The GTS is assigned by the National Electrical Code (NEC).

A transfer switch is a protection device required to utilize the generator. It is a circuit breaker and is usually fixed in the electric panel with the main service panel (the one that provides power to the house). There is usually one primary circuit breaker in the electric panel that powers the central electrical assistance to your home.

The transfer switch is found on a similar panel box for the generator. The appliance is usually a dual pole breaker, which indicates that it has two positions. It is usually either in the ON position or OFF place.

Technically, a transfer switch isn’t desired, but there are various reasons why experts suggest having one installed in your house when binding the gen to your home. For starters, it’s the safest way to connect the generator to a place. Utilizing extension wires can affect issues, intensifying the risks of fire or electrocution. It’s also a requirement by the federal electric code. When you use a generator to power equipment in your home, a National Electric Code states you have to have a well-installed transfer switch.

However, there are times where someone has stuck up the streamlet without a paddle which means they don’t have a transfer switch.

A complete guide for connecting the generator to the house without a transfer switch

Our suggestion is to hire an electrician. What you are doing is dangerous, particularly if you do not know about electricity. It is strongly advised that you confer with a licensed electrician even if you have all of the equipment and materials.

The following steps show how to connect the generator to the house without transfer switch by utilizing a using an interlocking kit:

● Switch off all circuit breakers, both the central breakers and territory breakers

● Put the interlock plate into place. Your breaker’s restraints can effortlessly be wrapped by these metal plates.

● To connect your generator to your inlet plug, use the generator’s power cord and kit wiring.

● Start your generator and turn off the breakers on all-important equipment. Avoid overloading your generator by using more than its rated constant wattage.

Estimated cost: 

On average, an electrician will charge $65 to $85 an hour, so a generator-wiring task could run you about $600 to $900 depending on the electrician and how long the labor puts up with the time. 

Time needed: 

Building for most transfer switches should take between two and four hours. 

Steps on connecting the generator to house without transfer switch 

Step 1: Create a Place for the Outlet Utility Box

Build a spot for the generator outlet in your select location. To accomplish this, create a rectangular gap that fits your outlet on the wall utilizing your oscillating tool for wood and drywall. You can also use your drill if you have a pure cement wall.

Step 2: Drill a Hole for Running Your Generator Cables to the Outlet

Using your drill, prepare a hole to run your wires from the outside of your house. Assure that it is more massive than the standard diameter of your wires. This way, you can prevent harming the electrical cables when installing them inside your outlet kit.

Step 3: Install the Waterproof Box Outside Your Wall

On the external wall, install your waterproof box. This box is to maintain your end plug from any possible harm. You can use any security box like this Sigma Electric Box for enclosing the end plug. Nonetheless, you may desire to find a larger safety box that will fit your wires.

Step 4: Connect the Wire into the Outlet

To attach the wires to your outlet kit, put them on the other end of the cables. You can connect it with a plug outside your house. After inserting the line, you can now develop the outlet kit inside.

Step 5: Connect the Generator to the Outlet and Test it.

To examine this plug-type connection, turn on your generator power, hook the inlet plug, and attach the extension into the generator inlet plug. Connect your power consumption tester and stick some equipment with a power rating that’s consistent with your generator to read how many watts your generator produces.

Some tips to follow when you are connecting the generator to the house without a transfer switch 

● Maintain a safe environment.

● Always put security first. Safety protection is usually the first stage when installing equipment, no matter how enormous or little it is. To protect yourself, put on safety glasses or goggles and gloves. 

● Do not try to improve without turning off the main switch.

● If you wish to operate the generator without the transfer switch, you must install the interlocking kit. It’s the only technique to get out of a problem like this.

● Educate yourself with your government’s laws and prevent doing anything that might be restricted due to safety concerns.

Frequently Asked Questions 

Is a transfer switch required?

A transfer switch is required by the NEC for any power contact to a home. Indeed, utilizing an ATS is the only safe way to quickly attach a generator to your home. An automatic transfer switch isolates your residence from the energy cords.

Can I Install a Generator Transfer Switch Myself?

Technically, yes, you can install a generator transfer switch on your own, assuming you have the essential knowledge of functioning with electronics and are safe doing it.


The generator transfer switch is a significant portion of your entire power-generating layout. Wiring a generator without a transfer switch may be difficult and even lead to a fire. But, if you feel that you don’t need to spend a lot of money on a transfer switch, you can look for an alternative and inexpensive choice.

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