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Description
Generac RTSW400A3 120/240-volt 400-Amp Automatic Smart Transfer SwitchFeatures 400 Amp Automatic Smart Transfer Switch For Generac Evolution and Generac Nexus Digital Power Management Technology (DPM) Allows your generator to work smarter, not harder Be Smart. Get More Out Of Your Generator Cycles power on and off as needed for different appliances Manage Up To (4) Individual HVAC Loads No Hardware Rec'd Air conditioners, water heaters, well pumps, etc. (24 VAC controlled) Up To (8) Smart Management Modules (SMM) (Sold
Features
- 400-Amp Automatic Smart Transfer Switch
- For Generac Evolution and Generac Nexus
- Digital Power Management Technology (DPM)
- Allows your generator to work smarter, not harder
- Be Smart....Get More Out Of Your Generator
- Cycles power on and off as needed for different appliances
- Manage Up To (4) Individual HVAC Loads - No Hardware Rec'd
- Air conditioners, water heaters, well pumps, etc. (24 VAC controlled)
- Up To (8) Smart Management Modules (SMM) (Sold Separately)
- Frequency (Hz) monitoring design, no control wire required
- Versatile design, easily prioritize loads and lock-out non-essential loads
- Service Entrance Rated (Load Side and Line Side Disc. Breakers)
- Installs between main meter and service panel
- NEMA 3R Indoor/Outdoor Rated
- Aluminum, wall mountable weather-proof enclosure
- Electrostatically applied and baked powder coating paint (Gray)
- Tech Spec Summary: Only For Use w/ Generac Generators
- Load Transition Type: Open Transition
- Withstand Rating: 22,000 Amps --- Lug Range: #4 or 2-250 MCM
What's in The Box
- 120/240-volt 400-Amp Automatic Smart Transfer Switch - RTSW400A3
- Owner's Manual
Warranty
- 1-Year Limited Factory Warranty
- 30 Day Satisfaction Guaranteed
Specifications
| Model | RTSW400A3 |
| Brand | Generac |
| Maximum Wattage | 96,000 Watts |
| Voltage | 120/240 Single-Phase |
| Frequency | 60 Hertz |
| Rated Amps | 400 Amps |
| ATS Service Disconnect | Yes |
| ATS Poles | 2 Poles |
| ATS Load Shedding | Built-In |
| ATS Load Prioritizing | Built-In |
| Max Generator Input | 400 Amps |
| Max Utility Input | 400 Amps |
| Enclosure | Outdoor NEMA 3R |
| Enclosure Material | Aluminum |
| Lug Range | #4 or 2 - 250 MCM |
| UL Listed | Yes |
| Weight (lbs.) | 140 (63.50 kgs) |
| Dimensions (LxWxH)(in.) | 48 x 22 x 10 (121.92 x 55.88 x 25.40 cm) |
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
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4.1 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Great book, the battle descriptions should've been more detailed
Format: Hardcover
The book looks great, both the dust jacket and the book cover are printed with the cover image.
The dust jacket is textured with a matte finish and shiny silver text, while the book cover looks exactly like the front cover image provided here on Amazon (with a glossy finish). In my opinion, the dust jacket looks better.
The book itself looks great. The texts are a bit too short for my taste though, as I would've like to read more detailed descriptions of each battle. Read the sample of the Battle of Marathon that's provided here. It will give you a good idea of the level of detail provided for each battle. Also, some of the battles that didn't get the full 2 page treatment were, in my opinion, significant and were deserving of getting it (Battle of Kadesh for example), while some less significant battles did get it, oddly enough.
All in all, I'd definitely recommend the book, but it does have a few shortcomings mentioned above.
PS. Also, Amazon, please work on your packaging. Add a few of those (styro)foam pieces with the book or something. My book did arrive mostly ok, and mostly unscathed, but when I picked up the package, the book was moving freely inside the banged up package. I'd say I got lucky it didn't get damaged too badly (apart from a few minor impact traces -- I'd say condition it arrived in was 9/10).
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Reviewed in the United States on April 28, 2019
★★★★★ 4
Very good book with a few minor flaws
Format: Hardcover
As most books published under the DK banner, this is a visually excellent book that is a pleasure to look at. It is well written and chock-full of outstanding illustrations and maps. I do have a few minor "ding" though. First, I think that the book should have included a "why" the battle changed history. While in most cases, this rationale is included in the text, in a few cases one has to wonder "why" this battle was important; for example, they chose the World War I battle of Verdun, but they also said that the battle was "inconclusive"; if so, how did it change history? Second, I have to question the choice of some of the battles. For example, the editors list "Arnhem", which ended up as a costly allied failure, but fail to mention the wildly successful Soviet "Operation Bagration", which destroyed the German Army Group Center. Third, there were some minor factual inaccuracies. The battles of Passchendaele and Dunkirk were both shown on a map as being located in Northern Italy instead of northern France, while Operation Overlord, the Allied invasion of France, was shown on a map as being more at Pas de Calais vice the beaches of Normandy. In spite of these nits, this is a good book worthy of belonging in you library. Four stars.
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Reviewed in the United States on May 7, 2020
★★★★★ 5
Excellent
Format: Hardcover
Great book for history lovers
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Reviewed in the United States on July 27, 2025
★★★★★ 5
This history book won’t make you sleep
Format: Hardcover
My brother-in-law is kind of hard to buy for, but I know that he’s a history buff, so I purchased this book. He loved it! If you have someone in your life that is difficult to buy for or just a history buff I highly recommend this book. It is great value easily understood and has beautiful pictures.
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Reviewed in the United States on August 2, 2025
★★★★★ 5
Awesome Book for lovers of history and battles.
Format: Hardcover
This book is a great addition for a history lover or a military history lover. It would make a nice coffee table book too. Information is arranged in an easy to understand grouping throughout the book. Illustrations add to the book too. It is a heavy well made book.
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Reviewed in the United States on December 19, 2023