---
product_id: 50284851
title: "Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker"
brand: "siemens"
price: "€ 108.22"
currency: EUR
in_stock: true
reviews_count: 5
category: "Siemens"
url: https://www.desertcart.ie/products/50284851-siemens-qa120afc-20-amp-single-pole-120-volt-plug-on
store_origin: IE
region: Ireland
---

# 20 Amp power capacity LED trip indicators for instant fault ID 1/4 in. extra wire bend space for easier wiring Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker

**Brand:** siemens
**Price:** € 108.22
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, protected, and ahead of the curve with Siemens AFCI!

## Quick Answers

- **What is this?** Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker by siemens
- **How much does it cost?** € 108.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/50284851-siemens-qa120afc-20-amp-single-pole-120-volt-plug-on)

## Best For

- siemens enthusiasts

## Why This Product

- Trusted siemens brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Torque Rating:** 25 lb./in. torque ensures secure, reliable connections
- • **Compact & Plug-On Ready:** Space-saving 120V single pole design fits seamlessly into your panel
- • **Ergonomic Wiring Design:** Extra wire bend space and aligned lugs simplify installation
- • **Smart LED Trip Indicators:** Instantly identify last trip cause with clear LED signals
- • **Advanced Arc Fault Protection:** Detects both parallel and series arcing faults for superior safety

## Overview

The Siemens QA120AFC is a 20-Amp, single pole, combination type AFCI breaker designed to detect both parallel and series arcing faults, enhancing electrical safety. Featuring LED trip indicators for easy fault diagnosis, improved wire bend space, and aligned lugs for streamlined installation, it delivers reliable protection and convenience in a compact 120-volt plug-on design.

## Description

The Combination Type AFCI differs from the Branch/Feeder AFCI in its ability to detect series arcing faults. The Branch/Feeder AFCI can only detect line-to-neutral and line-to-ground arcing faults. Combination AFCIs provide protection against the high-energy parallel (line-to-neutral and line-to-ground) arcing and low-energy series arcing. "Combination" does NOT mean an AFCI + GFCI. Combination = parallel + series arcing. Combination AFCIs protect downstream branch circuit wiring, cord sets and power supply cords. Siemens Combination Type AFCI trip indicators provide a valuable analysis tool to help electricians pinpoint the type of trip. These indicators are in the form of LEDs that appear near the handle of the breaker. The LED indications will appear for 5 seconds each time the AFCI is turned "ON" up to 30 days after the last trip.

Review: Purchased this after my previous breaker kept tripping even though only my fridge was on this breaker. Replaced it with this product and everything works great. Easy to install
Review: Good

## Features

- Single pole, 20 Amp, Combination type AFCI circuit breaker
- LED Trip indicators for clear identification of last trip condition
- 1/4 in. more wire bend space than previous design
- Both lugs at the same angle for easier wiring
- 25 lb./in. torque rating

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00J59DYLO |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 526,732 in DIY & Tools ( See Top 100 in DIY & Tools ) 1,162 in Circuit Breakers |
| Colour | Siemens Qa120afc |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,055) |
| Date First Available | 20 Sept. 2023 |
| Included Components | breaker |
| Item Package Quantity | 1 |
| Item Weight | 136 g |
| Item model number | QA120AFC |
| Manufacturer | SIECV |
| Material | Plastic |
| Part Number | QA120AFC |
| Pattern | Cardboard Packaging |
| Plug profile | Plug-In Mount |
| Product Dimensions | 2.54 x 2.54 x 7.62 cm; 136.08 g |
| Size | 20-Amp |
| Style | 1 Pack |
| Voltage | 120 Volts |

## Product Details

- **Brand:** SIEMENS
- **Circuit breaker type:** AFCI
- **Current rating:** 20 Amps
- **Mounting type:** Plug-In Mount
- **Product dimensions:** 76.2D x 20.3W x 15.2H centimetres

## Images

![Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker - Image 1](https://m.media-amazon.com/images/I/81fRAy-3-BL.jpg)
![Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker - Image 2](https://m.media-amazon.com/images/I/71nvMgz6vlL.jpg)
![Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker - Image 3](https://m.media-amazon.com/images/I/81Ktsf8mznL.jpg)
![Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker - Image 4](https://m.media-amazon.com/images/I/51sNhD-68zL.jpg)

## Available Options

This product comes in different **Customer Package Type, Size, Style** options.

## Questions & Answers

**Q: What is the difference between the qa115afc and the qa115afcp?**
A: The QA115AFCP comes in a plastic package, the QA115AFC comes in a cardboard box. Other than the packaging they are identical.

**Q: Is qa120afc interchangeable with mpa120afc?**
A: Q is the code for a Siemens breaker.  MP is the code for a Murray breaker.  The same company makes both breakers.  Some people use them interchangeably with no problem.  However, manufacturer wants you to use Siemens breakers with Siemens panels. Also, electrical inspector might give you a failing grade because you are not following manufacturer rules. Siemens brand is usually a higher price.

**Q: I have a ge type tql can i use this to replace my breaker?**
A: First of all, you said it, "General Electric".  Most commonly, BR, QP, TQL would attach to the Panel, But the Manufacture usually specifies the Type of breakers allowed onto their Panels. On your existing panel that this TQL is coming off of, please look at the Manufacture's requirements.  If, your existing panel is a, GE, I'm 100% sure you are not allowed to use this Siemens QA120AFC. Unfortunately, I would not recommend that you do so.

**Q: What is Difference between q120afc and qa120afc?**
A: The Q120AFC is an older version of standard arc-fault breaker. The Q120AFC was replaced ty the Combination Type AFCI breakers which is current design part# QA120AFC.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by V***C on 31 October 2024*

Purchased this after my previous breaker kept tripping even though only my fridge was on this breaker. Replaced it with this product and everything works great. Easy to install

### ⭐⭐⭐⭐⭐ Review
*by A***R on 6 July 2024*

Good

### ⭐⭐⭐⭐⭐ Review
*by D***S on 25 March 2022*

I replaced a circa 2007 Siemens AFCI with this newer combination AFCI. The old AFCI would always trip when a transfer switch was used to change from LINE power to GENERATOR power. I have learned that some of the older AFCI's are not very tolerant of the less than pristine power produced by a generator thereby causing it to trip. Since I swapped out the old AFCI and replaced it with this combination AFCI I have not experienced any false trips while running on generator power. Installation is straight forward, just be sure to cut all power to your service panel before attempting.

## Frequently Bought Together

- Siemens QA120AFC 20-Amp Single Pole 120-volt Plug-On Combination AFCI Breaker
- SIEMENS Q120DF 20-Amp Afci/Gfci Dual Function Circuit Breaker, Plug-in Load Center Style
- Siemens Circuit Breaker Arc Fault 15 Amp 120 V Cd

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-05*