

🔌 Stay powered, stay protected — the smart breaker your home deserves!
The Siemens QF120A is a 20 Amp, 1-pole GFCI circuit breaker featuring a 10,000 AIC interrupting rating and an innovative self-testing and lockout system. Designed for plug-in mounting, it continuously verifies its functionality to provide reliable Class A ground fault protection, making it perfect for kitchens, bathrooms, spas, and other sensitive environments. UL 943 certified and built by Siemens, it ensures uncompromising safety and peace of mind.
| ASIN | B01H04XXQQ |
| Best Sellers Rank | #21,013 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Ground Fault Circuit Interrupters |
| Brand | SIEMENS |
| Circuit Breaker Type | GFCI |
| Current Rating | 20 Amps |
| Date First Available | June 19, 2016 |
| Department | Unisex-Adult |
| Global Trade Identification Number | 00887621216559 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item model number | QF120A |
| Manufacturer | Siemens |
| Mounting Type | Plug-In Mount |
| Number Of Poles | 1 |
| Product Dimensions | 1"D x 3"W x 3.1"H |
| UPC | 887621216559 |
| Voltage | 120 Volts |
S**I
Very good prive
Good price works well in panel box
W**.
No complaints, does it's job and trips when tested with GFCI tester.
Works as intended.
S**T
Typical of all Siemens High Quality Products
I purchased this breaker for my very humid greenhouse. I wanted to replace the non-GFI breaker in the greenhouse panel. I am a huge fan of Siemens electrical components and was pleased that the breaker fit my off-brand panel perfectly. The breaker is typical of all Siemens high quality products, good value for the money and it doesn't trip unnecessarily. Of course, a breeze to install - just remember to turn off all power to the panel before removing the cover.
G**N
Good buy
Worked good great replacement for crappy eaton brand
C**S
Good breakers
It seems to be an ongoing problem here lately about getting the number of items placed. I ordered 11 and got 10. There is nothing profane about what I am writing. It isn't written in anger. Just a concern this is a growing trend with Amazon here lately. The breaker is fine. Installed many of these. I just wish they would improve on there math. Update: They figured out the math issue. Updated review to 4 stars. Good breakers.
J**I
Siemens GFI circuit breaker
It was a perfect match at very good price compared to buying new.
B**H
Used for Pool filter
Installed for pool filter. Held up all pool season and still going easy install
T**L
Works fine
Fine
N**C
Excellent fit and quality. Work as should with no concerns. Would buy again. Price is amazing compared to hardware stores.
A**R
Installed into panel without any problems and worked and tested ok. Beware that both wire screws are silver in color instead of silver and brass as on most electrical devices to designate neutral and hot load connections. Refer to the instructions for proper wire connections, however the wiring chart on the instructions is the size of a postage stamp and you will need a magnifying glass to read it.
Y**N
Very good product, well made, very good price
L**R
I needed a GFCI breaker for an outdoor plug and found that this Siemens worked well when tested and was of high quality. I've purchased numerous Siemens regular and arc-fault breakers through Amazon in the past and haven't had any issues. As well, I find that they cost roughly half the price you'd pay at 'big box'.
G**W
There seems to be a lot these things but I replaced a similar 20 year old Siemens unit with this one. They have slightly changed over the years (the new one has leds and a "pig tail" neutral) and after many youtube videos, I ordered and the replacement was done. It works and the breaker does not repeatedly trip any more. You need to be careful the you order the right unit that will fit your panel. These are NOT one-size-fits-all products. I hope it holds up for 20 years. These things do seem to wear out with time due to the GFI circuitry. I'm perplexed by the negative reviews but maybe they were not careful in ordering. It works. The price was good. I'm a happy camper.
Trustpilot
5 days ago
3 weeks ago