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Best Transfer Switch For Portable Generator Of 2024: Completed List

Bob Vila
  Feb 26, 2024 5:13 AM

What is the current state of the best transfer switch for portable generator in the market? As a result of the sheer number of options available, clients are likely to feel intimidated while trying to find an appropriate brand to shop for, There are simply too many choices, many of which are low-quality knock-offs, on the market.

In order to aid you in making an informed decision, we've put together a list of 15 different best transfer switch for portable generator product options that we've investigated and analyzed.


Any emergency power plan should include portable generator transfer switches. The utility company's main electrical feed to your home can be temporarily connected to a portable generator using these devices, without permanently switching to the generator.

It's a good idea to have a portable generator transfer switch kit on hand in the event of a power failure. To avoid backfeeding the grid, you can easily connect your generator to your home's electrical system and run your appliances.

Here, we'll explain how to add a transfer switch, hook up your appliances, and prevent frequent issues that arise when using a portable generator for long periods of time. If you're handy with basic tools, most installs may be accomplished in less than four hours.

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Last update on 2024-02-26 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Buying Guide

Types of Transfer Switches

We discussed both manual and automatic transfer switches throughout this article. For the sake of clarity, the following is a brief explanation of each term:

Manual Transfer Switches

It is up to you to approach the transfer box with the manual transfer switches and manually move the power from primary to secondary in the event of an outage. When utility power is restored, the entire process must be manually reversed.

Automatic Transfer Switches

An automatic transfer switch (ATS) does the same thing, but it doesn't necessitate that you be present to physically move the switch up or down. Sensors in the ATS are clever enough to know when to switch between different power sources. Every time the power goes off, you don't have to go running to the transfer switch.

There are a few things to keep in mind when deciding on the ideal transfer switch for your needs. To ensure that your generator is as reliable as possible in an emergency, it's critical to pick the correct transfer switch.

We've simplified the decision process by highlighting a few key points to keep in mind when purchasing a transfer switch.

What To Look For In A Transfer Switch

Wattage Rating

In order for a generator transfer switch to function properly, it must be able to handle a certain amount of power. Always buy a transfer switch capable of handling the rated wattage of your portable generator. Transfer switches must be capable of handling as much power as your portable generator, for example, which may deliver up to 5000 operating watts.

Type of Transfer Switch

Manual and automatic transfer switches are the most popular. The advantages and disadvantages of each of these electrical transfer switches are unique to each of them. Both types of transfer switches will be covered in greater detail later on in this text.

UL/CUL-Certified Items

Your transfer switch must meet UL/CUL standards before it may be purchased. The most reputable brands will have the appropriate qualifications to prove that their transfer switches are in compliance with industry standards.


The amperage a transfer switch can handle must match the maximum amperage of the generator. This is the first and possibly the most crucial thing to check.

There's no need to buy a transfer switch with a higher amp rating if your generator can't supply more than 30A.

Built-In Voltage Meter

To avoid permanently damaging a generator, it is critical to know how much electricity you are consuming at any given time.

You can keep an eye on your generator's maximum power output by using a manual transfer switch with an integrated Voltage meter.


In spite of their heavy-duty design, manual transfer switches might nevertheless malfunction. Manual transfer switches can be repaired for free if the manufacturer extends the warranty period.


If at all possible, you should match the output of your generator to the transfer switch's rated amperage.

This prevents the system from experiencing voltage difficulties, which could damage appliances over time. In terms of safety and overloading, this is a direct connection.


How far can a generator be from the transfer switch?

Although there are no hard and fast laws about the maximum distance, it is normally preferable to set your transfer switch 60-70 feet away.

Which is a better transfer switch or interlock?

Comparing the two is a challenge. The transfer of power sources is simplified in both ways. Interlock, on the other hand, provides more options and is less expensive than its rival.

Are Manual Transfer Switches Expensive?

A manual transfer switch can cost anything from a few hundred to a few thousand dollars, depending on the functions it has.

How Durable Are Manual Transfer Switches?

It is common for manual transfer switches to last for many years before they need replacing. When you purchase a manual transfer switch with an extended warranty period, any component that fails will be replaced at no cost to you.

How many Amps/ Circuits/Wattage Meter is Best?

The wattage of your generator is the most crucial factor to keep in mind when purchasing a transfer switch.

A transfer switch with the capacity to handle the maximum power of your generator is a must-have accessory.

For those who don't already own a standby generator, get a general estimate of the generator's rated wattage before buying the transfer switch. Buying a generator first, then a transfer switch, is the wisest course of action.

When purchasing a transfer switch, the kind is the final consideration. Currently, manual and automatic transfer switches are available on the market.


Power from your home's utility provider can be transferred to your home's diesel or gas-powered backup generators using portable generator transfer switch kits.

In the event of a service interruption, you will still have electricity. Because these devices don't require any form of external power source, it is crucial to point out that the electrical currents running through the walls of homes and buildings are sufficient for them to function.


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