The 10 Best 400 Amp Manual Transfer Switch In 2022

The 10 Best 400 Amp Manual Transfer Switch In 2022

Looking for the best 400 amp manual transfer switch? Well then, look no further as your search landed you in the right place. Thank us later for saving your time scouring thousands of articles online to look for the best product.

There is absolutely no reason to fret over which product to choose from the wide array of products. Our team has carefully curated this article weighing all the pros and cons. So what are you waiting for? Check it out!

10 Best 400 amp manual transfer switch in Reviews

1. SIEMENS GF324NR 200 Amp, 3 Pole, 240-Volt, 4 Wire, Fused, General Duty, Outdoor Rated

Features :

  • Outdoor General Duty Safety Switch
  • 200 Amp
  • 3 Pole, 4 Wire
  • 240 Volt
  • Fusible

Additional Info :

Item Dimensions
Height 33.65
Width 18.65
Length 9.95
Weight 0.000625

2. Generator Interlock kit, HOMCGK2C Homeline Cover Generator and QOM2 Frame Size Main Breaker Interlock Kit, for Use on Indoor Homeline 150A – 225A Main Breaker Load Centers, Indoor Kit

Features :

  • 【Safety Generator Interlock kit】This kit interlocks the QOM1 or QOM2 main breaker with a 2-pole breaker back-fed from a generator.Avoid the inconveniences that an unexpected power outage can cause with Indoor Generator Interlock Kit.It is used to direct generator power to any circuit within your home. It is truly a great way to safely connect up a generator, while assuring that you have access to all of your home electrical appliances.
  • 【Compatible Models】For use on indoor Homeline 150A – 225A Main Breaker Load Centers. Quickly convert existing HomeLine Load Centers into back-up power solutions. No need for a separate generator panel or special cover.
  • 【Package Contents】Our Generator Interlock kit Includes 1 interlock bracket, 1 retaining bracket, 1 hole drilling template, 3 hex nuts, 3 10-32 shoulder screws,1 interior mounting screw, 1 Instruction Bulletin, 1 Wiring diagram and 2 Interlock translation labels.Made in the USA.
  • 【High Quality and Reusable】This Interlock Kits are engineered from impact and chemical resistant stainless steel,which are very durable and reusable.Very easy to install or remove from within few seconds.Allow you to install this Interlock Kits more convenient and easier.Ideal for domestic and professional use with high quality.This interlock kit meets UL and ANSI safety requirements.
  • 【Buy Risk Free】All Our interlock Kits are backed by Lifetime warranty.Simply email us back if our product ever fails you and we’ll mail you a new original replacement free of charge.

Additional Info :

Color Silver

3. Xianxus Automatic Transfer Switch Insulation Isolation Type Dual Power ATS Automatic Changeover Transfer Switch Voltage 500V Rated Current 160A

Features :

  • Insulation voltage: 500V;Rated voltage: 400V;Rated current: 160A
  • Rated impulse withstand voltage: 4kV;3C rated voltage range: 37V-440V
  • Package weight: Approx. 3.5kg / 127.5oz
  • Operating temperature: -50~40℃, ≤95%RH
  • Package include: 1 * Automatic Transfer Switch

Additional Info :

Color Black

4. Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp panels. 1 3/8 inches Spacing between main and generator breaker, Professional and Interlock Kit

Features :

  • 【Compatible Models】Generator Interlock Kit Compatible with Square D QO or Homeline 150 or 200 amp panels.
  • 【Interval Space Required】1 3/8 Inch Spacing between main and generator breaker.
  • 【Safety Generator Interlock kit】This kit avoids the inconveniences that an unexpected power outage can cause. It is used to direct generator power to any circuit within your home safely. It is truly a great way to safely connect up a generator while assuring that you have access to all of your home electrical appliances.
  • 【Package Contents】Our Generator Interlock kit include 1 × Interlock plate, 3 × Shoulder Screws, 3 × Hex Nuts, 1 × Generator Start-Up Procedure Label, 5 × Remind Label, 2 × Zip Ties, 1 × Instruction Bulletin, 1 × Drill Bit
  • 【Easy to Install】The generator interlock kit offers a 3/16 drill bit, sturdy steel that goes through breaker panel easily. Easy to install, no need extra control box or wiring. Simply contact us back if our product ever fails you and we’ll mail you a new original replacement.

Additional Info :

5. YISTER WiFi Control ATS W2R Switch Mini 2 Phase Dual Power Automatic Transfer Switch Din Rail Mounted Controller, Dual Power Standby Generator 220V 240V Changeover Switch (2P 100 Amp NO Power Off)

Features :

  • The switch is mainly used for testing whether normal or spare power is normal or not.It can switch power supply in 0.03 seconds to build uninterruptible power supply.
  • When the normal power is abnormal, the spare power works at once, which therefore ensures the continuirty, reliability, and safety of power supply.
  • When the normal power supply is normal, it will automatically switch back from the backup power to the normal power supply.
  • W2R series automatic transfer switch is suitable for the dual power grid with 50 or 60 Hz alternatting current rated 400V 100A.
  • TSE is compact in structure, reliable in transfer, convenient in instabllation and maintenance, and has long lif expectancy. It is specially designed for household orbit-type installation.

Additional Info :

Color W2R-2P wifi

6. GeepKey Latest 50 Amp Generator Power Inlet Box, NEMA 3R Generator Receptacle 50 Amp, NEMA SS 2-50P PB50 Weatherproof Inlet Box, 125/250 Volt,12500 Watts Generator Transfer Switch, ETL Listed

Features :

  • ETL Certification: 125/250V, 12500W, 50Amp generator inlet box with CS6375 inlet generator plug, suitable for all 50 amp NEMA SS2-50 generator cord. This pb50 power inlet box is a good partner for the generator to accommodate the power cord. It is designed to be installed in outdoor areas where generators are used outdoors, and also be ideal for backup power during power outages/bad weather, etc.
  • Best Choice for Outdoor: the whole body of GeepKey generator power inlet box is covered with anti-rust coating, with powerful features such as wind, rain and rust! In addition, it adopts a flip design (with weatherproofing foam inside), which is dedicated to preventing dust and humid air; it can provide the best protection in any bad weather!
  • Green Safety Light: There is a clear green warning light on the flip cover, which will be lit when the power connection is successful; Comparing with the old version, this generator inlet 50 amp plug can see a clearly visible green light indicator when working (especially in Night and dark areas), thus providing the best performance and higher security
  • Large Space with 4 Way Connection: The large space of 6.1*4.1*3.1 inches allows you to wire more neatly; the heat dissipation effect is better, and it has a longer service life. The front panel can be removed, making installation more portable. And the 1.2-inch combination hole with 4 areas (left, right, bottom, rear) can be directly connected to the switch and electrical panel from multiple directions.
  • 100% satisfactory service: This product is an upgraded model developed by us in accordance with market needs. Its performance, material, life, safety and other aspects are optimized、upgrade by our professional engineers, and we provide customers with 18 Month’s high-quality after-sales service; if you have any questions, please feel free to contact us.
  • Important❗❗We are committed to providing safer power transmission and make it comply with ETL standards, so we have set a more solid knockout to ensure that it is not easy to be penetrated to improve safety. It is necessary to use professional tools to penetrate (such as bi-metal hole saw/knockout punch); If you encounter any problems, please feel free to contact us!
  • ❗❗If you damage the 50 Amp generator plug because you can’t get through the Knockout, you can try to contact us first (email or through the seller’s contact tool), we will provide you with a replacement or a full refund!

Additional Info :

7. 2P Automatic Transfer Switch, 110V Rated Operating Voltage, 100A Rated Operating Current 50HZ/60HZ GDAE10 Dual Power Mini Controller, 690V Insulation Voltage (2P PC Level)

Features :

  • Application automatic transfer switch device:Line Voltage: AC110V; Rated operating current: 100A; Operating Frequency: 50HZ/60HZ; Insulation voltage: 690V, 50Hz
  • Conversion Time: 2S or so; Conversion Mode: self cast; Display Function: Indicator light display; 35MM standard rail installation
  • When one power goes wrong (only test normal Phase A voltage and reserve Phase A voltage, only test loss voltage or loss phase), it will automatic connect one or several load circuits from one power to the other power automatically, to ensure normal power supply of load circuits.
  • Complete protection function: This switch support variety protection function, including short circuit, overload, lack of phase, under voltage protection.
  • Easy installation:Reasonable structure, small size, equipped with protective cover, power supply is easy to install and reliable.

Additional Info :

Color 2P 100A

8. Connecticut Electric EGSPI50 50A Rainproof Generator Power Inlet Box with Cover, CS6375, SS2-50P, Receptacle, Gray

Features :

  • For use with EmerGen Switch Transfer Switches and matching Generator Receptacles
  • Rainproof generator power inlet box with cover
  • Complete with Pre-Wired Flanged Inlet Receptacle
  • Accepts Siemens HR Series Conduit Hubs
  • Listed to UL-1008 requirements

Additional Info :

Color Gray

9. A510C Pro/Tran2 50-Amp 10-Circuit 2 Manual Transfer Switch

Features :

  • Includes full manufacturer warranty

Additional Info :

Item Dimensions
Height 11
Width 4.5
Length 11.75
Weight 18

10. Go Power! TS-30 30 Amp Automatic Transfer Switch , Black

Features :

  • Can handle 2 sources of 30 amps at one time
  • Made for use with inverter, shore power or generators
  • Delay switch for use with generators
  • Comes with knockouts for easy and professional installation
  • Single relay
  • Dimensions: 9.65”L x 7.28”W x 4.75”H
  • Voltage: 120 VAC
  • Dominant Source – Generator (20-45 sec delay), Safety Interlocks – Mechanical and Electrical

Additional Info :

Item Dimensions
Height 4.75
Width 7.28
Length 9.65
Weight 2.5

Why Go for Online Stores?

Whenever you look up product reviews, you might notice an uncanny similarity. All the online stores bag the first places. Have you ever thought about why people bank on online stores to this extent?

In this digital era, people always look out for easier options. So purchasing any products like 400 amp manual transfer switch is only a matter of time for online shopping. You can easily purchase products anywhere and anytime and cancel them as well.

Expose yourself to various brands for the same product via online stores. Even more, price comparisons are what buyers enjoy on these platforms. With just a few clicks, you can navigate through the product pages and spend your money wisely.

Just in the palm of your hands, you can grab some amazing deals at low prices. Who would not love this?

Factors You Need to Consider When Buying 400 amp manual transfer switch from Online Stores

Are you on the hunt for 400 amp manual transfer switch? Well, purchasing online needs some contemplation. To help your cover all the important questions, we have prepared a list.

Just go through the question list. Feel free to do your own research while purchasing the 400 amp manual transfer switch. Below are some examples you might deem right to ask:

  • Is the 400 amp manual transfer switch really worth the money?
  • What specific advantages does it offer?
  • Does the 400 amp manual transfer switch you’re picking have any innovative features?
  • What are some of the best features of the 400 amp manual transfer switch?
  • Does your 400 amp manual transfer switch come with a warranty?
  • Does it have any con that might prove to be detrimental in the long run?
  • Where will you find enough information about 400 amp manual transfer switch?
  • Where can you find some of the best 400 amp manual transfer switchs?

Probably, you have come up with way more questions than there are on the list. Do not deprive your curious mind of the answers. Research, research, and research, until you locate the answers to the factors.

Other Benefits of Buying Products From Online Stores

The list of pros for purchasing online can be unending. We havefound you multiple reasons to purchase a 400 amp manual transfer switch from Online Store. So let’s dive in to see some of the best advantages:

Best Prices

Online purchase has been renowned for offering items at the best possible prices. As such places have networks with many dealers and manufacturers, sellers offer the best deals. Moreover, there are no intermediaries, which lessens the additional costs.


You can easily compare the same product on many websites at once, just by sitting at home. Then, by seeing the ratings, you can evaluate which product to go for by yourself. Thus, you can gain access to better quality than traditional shopping.


As online stores portray customer reviews,  purchasing from them gives a reliability boost. If faced with any defect, there is a scope for you to change.

Some stores have excellent customer service, pushing you to buy from there.

Huge Array

Online stores have a large consumer base. Every day, millions of people shop online. Moreover, after the pandemic, more and more people are inclined towards online shopping.

What’s in it for you?

You get to choose the best product from the pool of various choices. If one model does not meet your criteria, you always have the flexibility to jump to some other models.


Who does not love convenience? Having everything as per your wish is something to die for. Buying a product from an online store is such. You do not have to worry about the time, the place, or the crowd.

Everything happens when you want it and how you want it.

How to Choose Your 400 amp manual transfer switch

If you want to purchase products like the 400 amp manual transfer switch, you need to follow a buying guide. Some features need to tick your boxes before buying. Let’s take a look at them:


If you want to grab the best deal, the price is what you would check first. Then, compare the price that various sellers offer and choose the best suitable one.


When you buy the 400 amp manual transfer switch, the brand is the second thing that you might consider. Learn to differentiate among brands to arrive at the right decision.


The warranty of the 400 amp manual transfer switch must be taken into account as well. No one would like to spend dollars on a product that barely lasts a month!


Check out your 400 amp manual transfer switch’s functionality when you buy it. An easy way to do that would be to check the specs.

Remember, the more vast the specs, the greater your product’s functionality.


You must know the size/dimensions of your 400 amp manual transfer switch. Any wrong fit will make the product useless. Thus, it is recommended to learn about the product size beforehand.


Suppose you end up buying a 400 amp manual transfer switch whose color does not meet your taste. It would be throwing your money down the drain.

Hence, you should note what color preferences you have. Then, later, check if the online store features them or not.

Old Customer Reviews

Most smart purchasers would do this. Verifying the authenticity of the product is indeed a smart move.

When you scroll down, you will come across product reviews on the website. Checking them out will help figure out which brand to go for.

Final Words

That’s a wrap for the product 400 amp manual transfer switch. We hope this buying guide facilitates your buying journey. So follow it to grab the best deals out there.

Also, do a self-analysis to know more about the best 400 amp manual transfer switch. Then, try it out and let us know if our comprehensive guide came to use or not!

Have a good buy!

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