Advertising Disclosure

Siemens Q120DF 20 Amp Afci/Gfci Dual Function Circuit Breaker Review

Author image
By Best Choice team
Checked icon Last updated - June 7, 2026
9.6

Verdict overview

  • Easy installation 9.8
  • worth the money 9.3
Pros
  • Faster installation
  • More cost effective
  • Pinpoints cause of trip
Cons
  • Possible incompatibilities.

Tech specs

color Black
current rating 20 Amps
pattern Cardboard Packaging
batteries included No
included components Q120DF
warranty description 1 Year
circuit breaker type AFCI
product dimensions 5D x 1W x 3.5H
item weight 3.2 ounces
number of poles 2
voltage 120 Volts
item package quantity 1
size 20-Amp
material Plastic
style Breaker
batteries required No
mounting type Plug-In Mount
Show more

Product Overview

If you are looking for a reliable, cost effective circuit breaker for your home or office, the SIEMENS Q120DF 20 Amp Afci/Gfci Dual Function Circuit Breaker is an excellent choice. This product is designed to provide both Arc Fault Circuit Interruption AFCI and Ground Fault Circuit Interruption GFCI protection in one device, eliminating the need to install both an AFCI breaker and GFI receptacle. This product also features a Siemens exclusive LED trip indicator that quickly pinpoints the cause of a trip.

Housed in a robust black enclosure, this circuit breaker is rated for HACR, SWD, and 120 Volt AC. It has a current rating of 20 Amps and fits perfectly into Siemens load centers that accept UL type QFGA2 breakers. The product dimensions measure 5 x 1 x 3.5 inches and it weighs 3.2 ounces. It comes with all the mounting hardware needed for installation and requires power to run its self test/trip functions.

Installation of this circuit breaker is relatively easy and can be completed within minutes. The included instructions provide detailed information on how to properly install the device, making it ideal for DIYers as well as professional electricians alike. Additionally, because it is a single device that combines both AFCI and GFCI protection, it saves time and money compared to buying two separate devices that would otherwise have been necessary to meet code requirements.

The SIEMENS Q120DF 20 Amp Afci/Gfci Dual Function Circuit Breaker is perfect for anyone who wants reliable protection from electrical hazards in their home or office without spending too much money on multiple devices or hiring an electrician to install them. It is designed to last for years with minimal maintenance required and should provide peace of mind knowing that your electrical system is safe from potential damage caused by arc faults or ground faults. Highly recommended!

Where to buy:

Faq icon

Frequently asked questions

  • What is this circuit breaker used for?Arrow icon
  • What type of breaker is this?Arrow icon
  • What are the size and current rating?Arrow icon
  • Is it easy to install?Arrow icon
  • Does it come with a warranty?Arrow icon

The secret behind our reviews

By Best Choice team

Best Choice Team is your go-to source for curated product recommendations across various categories. Leveraging years of industry experience and advanced AI technology, we analyze data from multiple sources to bring you the most relevant and up-to-date product lists.

Our AI-driven approach allows us to streamline the selection process, ensuring that the products we feature align with current market trends and consumer preferences. We aim to provide content that helps you navigate your purchasing decisions with greater ease.

Users reviews

96% of reviewers would recommend to a friend, Based on 1,304 Reviews

Show highlight comments

Leave a reply

You can help us improve our product reviews by providing us with your feedback. Please share your thoughts in the section below.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.