--- product_id: 300838490 title: "20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker" brand: "siemens" price: "£57.80" currency: GBP in_stock: true reviews_count: 8 category: "Siemens" url: https://www.desertcart.co.uk/products/300838490-20-amp-1-pole-dual-function-cafci-gfci-plug-on store_origin: GB region: United Kingdom --- # 20 Amp high current capacity Plug-On Neutral for easy installation Dual Function AFCI/GFCI protection 20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker **Brand:** siemens **Price:** £57.80 **Availability:** ✅ In Stock ## Summary > 🛠️ Power up your safety game with Siemens’ smartest breaker yet! ## Quick Answers - **What is this?** 20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker by siemens - **How much does it cost?** £57.80 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/300838490-20-amp-1-pole-dual-function-cafci-gfci-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 - • **Self-Test Technology:** Automatically verifies functionality, giving you peace of mind without manual checks. - • **UL Listed & Code-Ready:** Meets stringent safety standards and fits perfectly in Siemens Plug-On Neutral Load Centers. - • **Dual-Function Safety Shield:** Combines 5mA GFCI and AFCI to protect your home from ground and arc faults simultaneously. - • **Effortless Plug-On Neutral Installation:** No pigtail hassle—snap it in and go, saving you time and complexity. - • **Robust 10,000 AIC Interrupting Capacity:** Handles high fault currents safely, ensuring ultimate circuit protection. ## Overview The Siemens 20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker is a cutting-edge electrical safety device designed for quick, pigtail-free installation in compatible load centers. It uniquely combines arc fault and ground fault protection with a 10,000 AIC rating and self-testing capabilities, ensuring superior home electrical safety and compliance with UL standards. ## Description Siemens introduces the new simple, spacious and secure Plug-on neutral load centers with electronic breakers. The dual-function circuit breaker combines class A 5mA GFCI and combination type AFCI, protecting against both arc faults and ground faults. This, along with the new self-test feature, makes it the first in class in electrical safety for homeowners. This Dual Function circuit breaker is the same, reliable design, without the pigtail, specifically designed for the Plug-On Neutral Load Centers. Simple, Spacious, Secure. The Siemens Plug-On Neutral Combination Type AFCI breaker detects arcing faults (an unintentional arcing condition in a circuit) that standard circuit breakers are unable to detect. This AFCI circuit breaker is the same, reliable design, without the pigtail, specifically design for the Plug-On Neutral Load Centers. These breakers now only have a single load lug. The branch neutral conductor is returned to the neutral terminal bar for simpler and quicker wiring. Review: Quality and Convenient - These are easy to install if you have a compatible plug on neutral box. Fits tight. Works perfect. No more searching the wall for the GFCI and looking for the breaker at the same time, it’s always all in once place in the box. Used 4 of these in my garage for 3 years so far and going strong. GFCI tester proves good functionality. Review: Good product / seller - Just as described, fsst shipping and excellent price ## Features - Simply installs like any other breaker, now without the pigtail - 10,000 AIC - HACR and SWD rated - UL Listed - This breaker is specifically designed for Plug On Neutral Load Centers ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08Y5D8N71 | | Best Sellers Rank | #35,860 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #10 in Ground Fault Circuit Interrupters | | Brand | SIEMENS | | Brand Name | SIEMENS | | Circuit Breaker Type | AFCI | | Current Rating | 20 Amps | | Customer Reviews | 4.5 out of 5 stars 316 Reviews | | Included Components | Circuit Breaker, Instruction Sheet | | Item Dimensions D x W x H | 3"D x 1"W x 3.5"H | | Item Type Name | Siemens 20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker | | Item Weight | 0.25 Pounds | | Manufacturer | Siemens | | Model | Q120DFN | | Mounting Type | Plug-In Mount | | Number Of Poles | 1 | | Number of Poles | 1 | | Part Number | Q120DFN | | Product Dimensions | 3"D x 1"W x 3.5"H | | UPC | 804766906596 | | Unit Count | 1.0 Count | | Voltage | 240 Volts | ## Product Details - **Brand:** SIEMENS - **Circuit Breaker Type:** AFCI - **Current Rating:** 20 Amps - **Mounting Type:** Plug-In Mount - **Product Dimensions:** 3"D x 1"W x 3.5"H ## Images ![20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker - Image 1](https://m.media-amazon.com/images/I/71cs-17Ti1L.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Is the description accurate, indicating 240 volts? The picture of the breaker shows 120.** A: No the breaker is single pole 120v **Q: Is this compatible with a GE panel?** A: No. Siemens has not listed these for use in GE equipment. You would need to contact GE to determine if they have approved this Siemens breaker for use in their specific panel. **Q: I need 8 Q115dfn and 11q120dfn breakers. Do you offer any bulk pricing?** A: Thank you for contacting Siemens we do not have bulk pricing options for these breakers. **Q: Has the nuisance tripping issue been resolved?** A: I don’t know about that, but I’ve been selling this breaker for two years, and I never had any problems with the tripping ## Customer Reviews ### ⭐⭐⭐⭐⭐ Quality and Convenient *by J***R on December 28, 2025* These are easy to install if you have a compatible plug on neutral box. Fits tight. Works perfect. No more searching the wall for the GFCI and looking for the breaker at the same time, it’s always all in once place in the box. Used 4 of these in my garage for 3 years so far and going strong. GFCI tester proves good functionality. ### ⭐⭐⭐⭐⭐ Good product / seller *by J***E on September 22, 2025* Just as described, fsst shipping and excellent price ### ⭐⭐⭐⭐⭐ Good product good price *by E***N on September 26, 2025* Good product good price ## Frequently Bought Together - 20 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker - 15 Amp 1-Pole Combination Type AFCI Plug-On Neutral Circuit Breaker - Siemens Q115DFN 15 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker, Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/300838490-20-amp-1-pole-dual-function-cafci-gfci-plug-on](https://www.desertcart.co.uk/products/300838490-20-amp-1-pole-dual-function-cafci-gfci-plug-on) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-23*