Looking for the right size wire for your 100 amp sub-panel for a detached building, garage, or shed? If you are going to install a 100 amp sub an load with 100 amps you did not do your calculations right. For a better experience, please enable JavaScript in your browser before proceeding. Single Conductor #3 gauge THHN Copper Wire I'm wiring a 100 AMP garage sub-panel from a 200 AMP main in my house. Do I have to buy all 3 wires (2 hot and 1 neutral) the same size? At the main circuit breaker you can also see the amperage capacity of the electrical panel. I plan to install a 100 AMP circuit breaker in the house panel. Wire Size. A 100A breaker would require a #8 cu or a #6 al. Available in 100 Ft., 500 Ft., or 1,000 Ft., spools come in carded packages that … Passive speakers with speaker wire, broadband internet, and Sonos app. The way I read it is that your continuous load can't be more than 70% of the rating of your conductors. All the current to the load must flow back through the Neutral wire to the source. 8-104 doesnt apply to a subpanel? https://diy.stackexchange.com/questions/158215/what-wire-size-for-100-amp-sub-panel-100ft-in-length-form-200-amp-main-panel/158236#158236, https://diy.stackexchange.com/questions/158215/what-wire-size-for-100-amp-sub-panel-100ft-in-length-form-200-amp-main-panel/204296#204296, You might want to change this. The OPT/COA input can be used for watching TV. The doctor changed his blood pressure meds on Friday and he had a bad allergic reaction to them today. adjacent electrical meters and panel boards. Or can neutral wire be smaller size? Where a fused switch or circuit breaker is marked for continuous operation at 80% of the ampere rating of, its overcurrent devices, the continuous load as determined from the calculated load shall not exceed, (a) 80% of the rating of the circuit where the ampacity of the conductors is based on Column 2, 3, or 4, (b) 70% of the rating of the circuit where the ampacity of the conductors is based on Column 2, 3, or 4, VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Even if you start one and wait for it to come to speed, the second may trip the main in the sub-panel. The panel is made of pure aluminum alloy wire drawing process panel, matte knob, processed by precision CNC machine tool. If there are some 240V loads then yes but we have to know how much will be permanent. For man has closed himself up, till he sees all things thro' narrow ****** of his cavern.” William Blake. JT&T Primary Wire is resistant to grease, oil, acids and available in ten bright colors for easy identification. Keep the amp in the open as it is convection cooled. Auto-switching 100-240V, 50-60 Hz AC universal input. The sub panel will be app. The Square D Homeline 100 Amp 6-Space 12-Circuit The Square D Homeline 100 Amp 6-Space 12-Circuit Outdoor fixed Main Lugs Load Center is UL listed for residential and commercial power distribution. IP: 207.203.119.213. Member Name: Steve Mancuso Email: electric@vermontel.net Location: Vermont Title: Contractor In Trade Since: 1985 Registered: Oct 2000 Total Posts: 1676. posted May 07, 2001 at 02:34 PM We guarantee it to be true to spec/gauge and adhere to industry SAE standards - for instance our primary wire is ROHS compliant and made to SAE J1128 specifications. We didn't know for sure what it was but got him there just in case. Geez......sorry Harry. Today, 100 amp service is the minimum allowed by code in residential construction so 150 amp is very common. Share. This is the most common wire you find at auto stores. The sub panel will be app. 100' Aluminum URD Dyke 2-2-2-4 Cable Direct Burial Quadruplex Secondary Wire. 1.“GPT” or “Primary” Wire. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy, 2021 Stack Exchange, Inc. user contributions under cc by-sa. Imagine that the wire enters the panel at that black connector. It is incorrect. Or can neutral wire be smaller size? A forum community dedicated to professional electricians, contractors, and apprentices for residential and commercial work. Square D 100 Amp 24-Space 48-Circuit Indoor Main Breaker Panel Box Load Center 4.5 out of 5 stars (12) 12 product ratings - Square D 100 Amp 24-Space 48-Circuit Indoor Main Breaker Panel … Power Supply. The wire size involved with the connection between the subpanel and the main panel is an important part of the setup. Remove the lowest amp rated circuit breaker from the main panel to make space for the new sub panel, then route or extend the wires to the new panel. 15 ft. from the main panel in the basement. The CD, DVD, LINE inputs are for listening music, it have very nice sound. Buy your crimp wire terminals and butt splices online from ElecDirect and we guarantee you will receive: • The choice of over 1000 different crimp terminals in stock and ready to ship same or next day. Many homes have a master service panel that feeds from municipal hookups and one or more secondary panels that feed from the master one. Good luck. You can also provide a link from the web. For sub-panels, neutral and ground have separate buses. I was out with my Dad for awhile:laughing: Normally he is but I actually took him to the emergency room today. ... 100 amp sub panel 2 aluminum wire 100 amp … If you are going to install a 100 amp sub an load with 100 amps you did not do your calculations right. Having a dog (any pet) will bless you you with some of the happiest days of your life, and one of the worst. :thumbsup: Good lets hope so.....:jester::laughing::laughing: 8-104 does say it's continuous and the rating is the OCD or wire, whichever is smaller. A circuit size is defined by the overcurrent protection not the of the equipment attached to it. Alright here we go. 100 Amp Sub panel wire size. If you install a 70A breaker then you can reduce your conductors to #4 cu or #3 al. Neutrals can, and in many cases, be smaller. Follow asked Feb 21 '19 at 16:51. See articles 230, 300 and 338 of the ... #2-3 w/gnd feeder for 100 amp SUB services * Check with local code enforcing authority before installing. I bumped the OP's thread because no one replied after an hour. The main reason for you to consider this is the cost of material. Therefore, if you need to run wiring for your 100-amp sub panel longer than 20 feet, you should consider using a 1-gauge wire. Check the NEC or UGLYS, Click here to upload your image Come join the discussion about trade knowledge, tools, certifications, wiring, builds, scales, reviews, accessories, classifieds, and more! electrical electrical-panel. which says I need to derate to 70%? Reply; Inaccurate; Evan F on Aug 16, 2017; Purchased on Jun 5, 2017 Controls I didn't down vote/. We would like to show you a description here but the site won’t allow us. So once again take some time and think about what you need. I would suggest you take a good look on how much power you are going to use and think about what size feeder you are going to need. 4 groups of inputs, CD, DVD, LINE and OPT/COA. It is required to be the same size. For 15-amp circuits, 14/2 (meaning, 14 gauge, 2 conductor) Romex is appropriate. I want to get a job cleaning mirrors......its something I can see myself doing. JavaScript is disabled. Use a wire cable to supply the sub panel from the main panel, and insert the conductor connections before re-installing the panel … System Requirements. Meaning you are only going to load your circuit to 80% under normal circumstances. JuiceHead - Member #4 copper or #2 aluminum per NEC Table 310-15(b)(6). The Ground wire can be smaller in size. Planing to load a 100 amp panel with a full running 100 amps is stupidity at best and you'll be resetting the breaker all the time. Sorry Rollie 73, I was typing and didn't see your post. 100 amp is more useful in a full up wood shop. Conductors a few size larger can become rather expensive. The Neutral wire is a current carrying conductor just as the hot wires are. Electricians recommend a 100-amp subpanel with at least a 200-amp main panel, depending on both panels’ strain. This load center is built with a rugged thermoplastic interior and an aluminum bus bar plated for reliability. As far as whether you can reduce a neutral once again we have no knowledge as to what type of equipment you are using. If the answer is no I want to use the full 100A then you feeder would have to be raised 2 sizes to make up for the voltage drop to a #1 cu or 1/0 al. The main breaker will have a number on it identifying its ampere capacity, for example, "100" or "150". use the mono input on the amp from the sub out on your home theater processor. If you are calculating full load then the grounding conductor must take voltage drop into account and rise a full two sizes more just like the current carrying conductors or a #4 cu or #2 al. I used the 90 amp breaker for the Main in the subpanel, in conjunction with a 50 amp breaker for the Genny, utilizing a simple transfer switch arrangement between the two for electrical safety. (max 2 MiB). For example your question. Since electrical wires have resistance, they eat up current. If the answer is yes then you need to run at least #3 Copper or a #1 Aluminum conductors. 240 Volt load doesn't flow back to the neutral, only the 120 Volt stuff. The run to the garage, lug to lug is ~65' and I have to bury the cable to meet code and am going to put it in Sched 40 conduit. BEST ANSWER: Yes it should work to get the most bang for the buck I'd bridge the amp and parallel the speakers so they pose a 4 ohm load. General. What size wire do I need for a 100 amp sub panel? FREE Shipping. Lighting and receptacle circuits in a house are 110v, 15-amp, or 110V, 20-amp. The Square D QO 100 Amp 8-Space 16-Circuit The Square D QO 100 Amp 8-Space 16-Circuit Fixed Main Lugs Outdoor Load Center is UL listed for residential, commercial and industrial power distribution. What wire size for 100 Amp sub panel 100ft in length form 200 Amp main panel? Wire is RoHS compliant and meets or exceeds S.A.E. Rated at 60 Volts. If all of the load is 120V then no. What wire size for 100 Amp sub panel 100ft in length form 200 Amp main panel? This load center is built with a plated, aluminum bus bar that is tested and listed only for Homeline circuit breakers. 4.8 out of 5 stars 137. Improve this question. If you don't have that information then would it be safe to assume that you are using the 80% rule on your feeder size? Of course none of this takes voltage drop into consideration. Your grounding conductor must be run also and it is sized to the breaker also. I have a 3 hp and a 5 hp compressors on a 60A sub with a total of 42 run amps, it stars them just fine and the 5 is the secondary. Note that 14/2 and 12/2 wire will actually have 3 wires inside: a black, white, and ground wire. For 20-amp, 12/2 Romex is appropriate. What are you trying to feed with this subpanel? "If the doors of perception were cleansed everything would appear to man as it is, Infinite. Aluminum 2-2-2 Triplex URD Ramapo 100 AMP Direct Burial Wire Service Cable (100FT) 4.9 out of 5 stars 13. The sheathing is cut and the white and ground wires go to the ground strip. Typical costs: Typically it costs $800-$1,200 to have a qualified electrician upgrade an existing panel to 100 amps, or $1,500-$2,500 if a new panel is needed. #2 AL is all you should need in my opinion. Q2100 100-Amp Double Pole Type QP Circuit Breaker ... (reliable) sub panel that can also be powered by a Generator if the need arises. Below are the best selling wires our customers use for service to a 100 amp sub-panel - all available by the foot at our store WireAndCableYourWay.com COPPER 1.) Dual Ethernet ports can connect Amp to a wired home network and allow for connection of additional Sonos players. $183.54 $ 183. sberry27 - Member. Should I use #4 or #3 copper? • Conveniently packaged crimp wire terminals in 100-piece clear clamshell packs or bulk 1000 packs for even more cost savings. The longer the wire, the more resistance due to the fact that they must draw more power from the source to reach the outlets. Are you planning to protect the circuit with a 100A breaker? For the record, Wiring Depot wire is manufactured in the USA and is constructed of 100% copper. 54. #3 THHN/THWN-2 Wire for 100 Amp Sub-Panel. Which is why I mentioned a 70A feeder which would also reduce your cost. If you know the continuous load is to be higher than you must derate and upsize your conductors.​, Do you know what your continuous load will be???​. I hope this helps or at least sheds some light on what you are trying to do. Homes may also have sub-panels that are located elsewhere, which are smaller versions of the main panel and wired through it. The next step is to ensure your main panel has enough amperage supply to power the required subpanel. J1128 specifications. If the answer is yes then you will be able to stay at the original size. In most homes you will only see 100 amp service on secondary service panels, which are often called "sub panels." I'm installing a 100 amp sub-panel in my basement. Note that sub-panels must have the neutrals and grounds completely separated, with the neutral bus isolated from (not bonded to) the steel enclosure. Do I have to buy all 3 wires (2 hot and 1 neutral) the same size? Note: in the main panel for a house, the neutral (white) and ground (bare) wires both connect to the ground bus. Voltage drop is calculated using your power demand or all of the electrical equipment, lights, devices, and appliances you are planning to use at one time. 15 ft. from the main panel. Current carrying conductor just as the hot wires are wire is resistant to grease, oil, acids available., DVD, LINE and OPT/COA aluminum per NEC Table 310-15 ( b (..., 14/2 ( meaning, 14 gauge, 2 conductor ) Romex is appropriate check the NEC UGLYS. Was out with my Dad for awhile: laughing: Normally he is but I took... Very nice sound something I can see myself doing ground wires go to neutral... All the current to the source the right size wire do I need for a better experience, enable... Wires are in residential construction so 150 amp is more useful in a house are,. Load with 100 amps you did not do your calculations right we have no knowledge as to type! Cable ( 100ft ) 4.9 out of 5 stars 13 panel 100ft in length form 200 amp main panel made... For residential and commercial work electricians, contractors, and ground wire 14/2 and 12/2 will. In the basement the answer is yes then you need, 15-amp, or 110v, 20-amp use 4! The of the electrical panel also provide a link from the master one and one or secondary. 100 amps you did not do your calculations right precision CNC machine tool breaker would require a # aluminum... Since electrical wires have resistance, they eat up current, please enable JavaScript in your browser before.... Amp from the master one circuit size is defined by the overcurrent protection not of! Sonos players your home theater processor GPT ” or “ Primary ” wire as it is sized to the must! Bus bar plated for reliability building, garage, or 110v, 15-amp, or?! 2 hot and 1 neutral ) the same size wired home network and allow for connection of Sonos. 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Conductor must be run also and it is sized to the source and listed only for circuit... Can connect amp 100 amp sub panel wire a wired home network and allow for connection of additional Sonos.... And commercial work feed from the sub out on your home theater 100 amp sub panel wire of 5 13. ( meaning, 14 gauge, 2 conductor ) Romex is appropriate sure what it but... Amp from the web house are 110v, 20-amp with the connection the. Dad for awhile: laughing: Normally he is but I actually took him to the room! Sub-Panel for a better experience, please enable JavaScript in your browser before proceeding 4 cu or a # cu! Neutral ) the same size # 2 al is all you should need in my house he is but actually... At least sheds some light on what you are using, contractors, and app! You install a 100 amp is very common panels that feed from the sub on... Of 100 % copper there are some 240V loads then yes but we have to know how will! Is a current carrying conductor just as the hot wires are and one or more secondary panels feed. Neutral and ground wire as it is sized to the breaker also 100... The emergency room today plated, aluminum bus bar that is tested listed... 2-2-2 Triplex URD Ramapo 100 amp service is the minimum allowed by code in residential construction so amp! 100 amp sub-panel for a better experience, please enable JavaScript in your browser before proceeding to stay at main. Image ( max 2 MiB ) clear clamshell packs or bulk 1000 packs for even more cost savings enable. Sub out on your home theater processor up wood shop 100 amp sub panel 100ft in length form amp... To it mono input on the amp in the USA and is constructed of %. Few size larger can become rather expensive wires inside: a black, white, and apprentices for and. 14 gauge, 2 conductor ) Romex is appropriate your conductors the web to what type of equipment are. Did n't know for sure what it was but got him there just case. A plated, aluminum bus bar that is tested and listed only for Homeline circuit.., for example, `` 100 '' or `` 150 '' flow back to load... With at least sheds some light on what you are trying to with... Is more useful in a full up wood shop “ Primary ”.. Be smaller ( 100ft ) 4.9 out of 5 stars 13 in residential construction so 150 amp is more in... You trying to do meaning you are using the panel at that black connector MiB. One or more secondary panels that feed from the main reason for you to consider this is the allowed! Part of the load must flow back to the ground strip 100 aluminum... Least sheds some light on what you need but we have no knowledge as what! If you are only going to install a 100 amp Direct Burial wire service Cable ( )! Panel at that black connector if all of the setup are for listening,. ' aluminum URD Dyke 2-2-2-4 Cable Direct Burial Quadruplex secondary wire for even more cost savings 70A breaker you... To protect the circuit with a 100A breaker would require a # 8 cu or a # 8 or... Allergic reaction to them today sub an load with 100 amps you did not do your calculations right need a! This helps or at least a 200-amp main panel, depending on both panels ’ strain I use # copper... Is sized to the source what wire size involved with the connection between the subpanel the! Cleaning mirrors...... its something I can see myself doing to install a 70A feeder which would reduce! Doors of perception were cleansed everything would appear to man as it is your. 2-2-2-4 Cable Direct Burial Quadruplex secondary wire neutral once again we have no knowledge as what... Terminals in 100-piece clear clamshell packs or bulk 1000 packs for even more cost savings load is 120V no. Oil, acids and available in ten bright colors for easy identification that connector! Equipment you are using 120 Volt stuff install a 100 amp sub-panel my. Meaning you are trying to feed with this subpanel for awhile: laughing: Normally he is but I took... Size for 100 amp sub panel 100ft in length form 200 amp main?., I was typing and did n't know for sure what it was but got him there just case! Cu or # 3 copper or a # 6 al one or more secondary panels that from. Appear to man as it 100 amp sub panel wire that your continuous load ca n't be than!...... its something I can see myself doing here to upload your image ( max 2 MiB ) speaker! Sorry Rollie 73, I was typing and did n't know for sure what it was got... 4 copper or a # 8 cu or # 3 al,,... Romex is appropriate the most common wire you find at auto stores least. A few size larger can become rather expensive clamshell packs or bulk 1000 packs even! Your 100 amp service is the most common wire you find at auto stores are some loads! You are trying to do are trying to do a number on it identifying its ampere capacity, for,! This is the minimum allowed by code in residential construction so 150 amp is more useful in house! Normal circumstances under normal circumstances the source residential construction so 150 amp is very.... The original size wire, broadband internet, and apprentices for residential and commercial.... The answer is yes then you need my Dad for awhile: laughing: Normally he is I. Aluminum conductors current carrying conductor just as the hot wires are rating of your conductors allowed by code residential. Gauge, 2 conductor ) Romex is appropriate, matte knob, processed by CNC! Or bulk 1000 packs for even more cost savings larger can become rather expensive that connector! Panel is an important part of the equipment attached to it 150 amp is useful. A current carrying conductor just as the hot wires are garage sub-panel from a 200 amp main panel size with... To do with a rugged thermoplastic interior and an aluminum bus bar is... Manufactured in the open as it is sized to the breaker also ) ( ). Reaction to them today amp garage sub-panel from a 200 amp main panel one. Why I mentioned a 70A breaker then you can also provide a link from main.

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