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Description
Generac GNC-RTSN100J3 Guardian 100-Amp Fully Automatic Transfer Switch 120/240VFeatures 3 Phase Automatic Transfer switch Only works with 120 240V 3 Phase generators Fully Automatic Operation Standard Installation May require a sub panel or disconnect for serviceability Nema 3R Aluminum Enclosure For Use With Generac Generators Only What's in The Box 100 Amp Automatic Transfer Switch (120 240V 3 Phase) Owner's Manual Warranty 2 Year Factory Warranty 30 Day Satisfaction Guarantee Specifications Model RTSN100G3 Brand Generac
Features
- 3-Phase Automatic Transfer switch Only works with 120/240V 3-Phase generators
- Fully Automatic Operation
- Standard Installation May require a sub-panel or disconnect for serviceability
- Nema 3R Aluminum Enclosure
- For Use With Generac Generators Only
What's in The Box
- 100-Amp Automatic Transfer Switch (120/240V 3-Phase)
- Owner's Manual
Warranty
- 2 Year Factory Warranty
- 30 Day Satisfaction Guarantee
Specifications
| Model | RTSN100G3 |
| Brand | Generac |
| Voltage | 120/208 Three-Phase |
| Frequency | 60 Hertz |
| Rated Amps | 100 Amps |
| ATS Poles | 3 Poles |
| Max Generator Input | 100 Amps |
| Max Utility Input | 100 Amps |
| Enclosure | NEMA 3R |
| UL Listed | Yes |
| Weight (lbs.) | 35 |
| Dimensions (LxWxH)(in.) | 24 x 20 x 7.25 (60.96 x 50.80 x 18.42 cm) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
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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]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 1243 reviews
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Product Reviews
★★★★★ 4
Has fit perfectly into my morning espresso
Color: Black&Silver
This seems to me to be an excellent small kitchen scale. I am new to the complexities of espresso making and have begun using this scale every morning to measure my dose and output. It is working just fine. Easy to operate, keep clean and store. I did not give it 5 stars because I have limited comparisons but I don’t expect and will not bother looking for anything better.
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Reviewed in the United States on May 30, 2026
★★★★★ 5
Perfectly fits what I needed for my espresso habit!
Color: Black&Silver
This Maestri House mini coffee scale is a great little tool for espresso and pour-over. The size is compact enough to fit under a portafilter or cup, and the 0.1g accuracy makes dialing in coffee much easier. I like the built-in timer, rechargeable USB-C battery, and clean black-and-silver look. It feels precise, practical, and easy to keep near the espresso machine. Great value for anyone who wants more consistent coffee.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Maestro House Mini Coffee Scale
I have begun to drink tea, pu’erh tea to be specific. I have several varieties and I have had a problem with getting consistent results. The varieties can be very different in size depending on when the leaves are harvested (leaves harvested in spring are much smaller). So the easiest way to get consistent results is by weight. This scale is very easy to use with a ceramic tea scoop, set the tea scoop on the scale, zero it out and add tea leaves. This has made my results much better, without the wild swings in strength I had been getting before trying to eyeball even measures. This scale gives me accurate measurements to one tenth of a gram.
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Reviewed in the United States on April 15, 2026
★★★★★ 4
Mostly great, except one little annoyance
Color: Black&Silver, Color: Black&Silver
Pros- lightweight, small, very accurate, easy to clean, timer included.
Cons- I use this to brew espresso on my Breville Touch and to get an accurate reading, you have to place something flat (structured) under the scale. Otherwise the reading just jumps all over the place. I know lot of espresso machines have the same base, so this might be an issue for some!
This is my reason for 4/5 stars. It’s an easy fix, it’s just kind of annoying. Value for the price seems to be on point. It’s easy to clean. It has a timer as well as scale (nice for espresso). Buttons work the first time you push them.
That’s it that’s all
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Great taste
Flavor Name: Ceremony Matcha-1.06oz
Great quality matcha. It came with a cute little metal spoon. The color was bright green, just the way its supposed to be.
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Reviewed in the United States on March 17, 2026