Where Should We Be Using Dual Function Breakers?

Video Description

When installing circuitry into a residence, it is important to refer to the NEC to determine exactly what types of protection are needed. GFCI protection and AFCI protection being among them. But what about dual function breakers? In the latest episode of Electrician U, Dustin brings to light what a dual function breaker is and where would be the places to install them. 🤘⚡️EU Learning System⚡️🤘 For Individuals --- https://electricianu.com/learning-system-for-individuals/ For Businesses --- https://electricianu.com/learning-system-for-businesses/ -Video courses on every side of the electrical trade (theory, code, safety, wiring, install, troubleshooting, leadership, and more) -Practice exams for 2017, 2020, 2023 code -YouTube videos categorized and searchable -Audio lessons -Forum -Business version has admin portal and ability to assign learning to technicians and monitor progress -Any business size from 2 techs to 2,000! 🎓💡CONTINUING EDUCATION💡🎓 Sign up here --- https://electricianu.com/continuing-education/ -State Approved -Video Based ✍📝PRACTICE EXAMS📝✍ Get them here --- https://www.electricianu.com/electrician-u-membership/ -2017, 2020, and 2023 NEC versions -Online Residential Wireman Exam -Online Journeyman Exam -Online Master Exam -300 Question Online Code Cannon (not license specific, all code) -Take as many times as you want -All of the above come with printable PDFs 🎤🎧PODCAST🎧🎤 Spotify: https://open.spotify.com/show/7ldCwdxhWnT0R3nne96XjC?si=a42a98b83c3549fc&nd=1 Apple Podcast: https://podcasts.apple.com/us/podcast/electrician-u/id1583270265 📱👍SOCIALS👍📱 TikTok - https://www.tiktok.com/@electricianu Instagram - https://www.instagram.com/electrician_u/ Facebook - https://www.facebook.com/TheElectricianU/ Reddit - https://www.reddit.com/r/ElectricianU/ Rumble - https://rumble.com/c/ElectricianU Discord - https://www.discord.gg/electricianu 🎧🎹Music, Editing, and Videography by Drake Descant and Rob LeBlanc🎹🎧 #electrician #electrical #electricity Let’s discuss the difference between the standard GFCI breaker, a standard AFCI breaker, Combination breakers, and Dual Function breakers so there isn’t confusion with terminology. A standard GFCI breaker senses the difference between what’s going OUT to the load and what’s coming BACK and interrupts the circuit if there is a big enough difference to cause damage to personnel. There are 2 kinds of standard AFCI breakers. A Series AFCI breaker will sense if there is a break in a single wire (where there would be an arc from one side of that wire to the next) and will interrupt the circuit. A parallel AFCI breaker senses a small amount of arcing between a neutral and a hot of the same circuit (not enough to be a dead short but smaller arcing) and interrupts the circuit. A combination breaker has the capability to protect from BOTH Series AND Parallel arcs. And lastly, a Dual Function breaker will protect against Ground Faults AND Arc Faults. The installation of a GFCI breaker isn’t specifically lined out in the NEC, just that GFCI protection for certain devices is required. Remember, GFCI protection is generally limited to the device, whereas AFCI protection is required for the entire circuit. Considering both the need to keep cost down AND convenience for the end user, a single GFCI breaker could take the place of several GFCI receptacles within a circuit or negate the need to run a large distance to protect the next receptacle in line of the GFCI device protecting it. In other words, a GFCI breaker will protect ALL the receptacles on the circuit. An AFCI breaker will do exactly the same thing, just from an Arc Fault standpoint in lieu of a Ground Fault. Article 210.8(A) of the NEC covers GFCI requirements in a residential installation while article 210.12(B) covers AFCI requirements of the NEC. If you were to look in the code, you would see that several of those areas are required to have BOTH GFCI and AFCI protection. Enter the Dual Function Breaker. Take a residential kitchen for example. You could put a dual function breaker in several of the circuits in the kitchen, thus negating the need for an AFCI breaker AND a GFCI device. Another reason to use a dual function breaker in lieu of both a breaker for AFCI protection and a GFCI device for protection is that the breakers tend to be a bit more robust and will fail less frequently than a device. Especially the WR GFCI breakers installed outside as they are constantly exposed to the elements. This, overtime, could amount to significant savings in replacement. As always, refer to the current version of the NEC to find the protection requirements for your situation as codes are reworked every 3 years. Also, it may be work answering customers questions as to why you would install a Dual Function breaker or individual devices. It certainly pays to help them understand why we install things the way we do.