All Questions
Tagged with electrical subpanel
468
questions
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Can I connect a 100 amp sub panel to a main that is 275 feet away? [duplicate]
Can I connect a 100 amp sub panel to a 100 amp main that is 275 feet away? I am wanting to run electricity to an outbuilding. What size wire should be used? I will be burying the cable in plastic ...
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5
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3
answers
962
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Can I convert 50 amp electric oven circuit to subpanel, and power oven plus water heater, plus maybe a car charger?
My gas water heater is very old, and I'd like to replace it with a heat pump electric water heater. The one I'm looking at is 19 amps, 240 volts. My breaker box is in a finished part of my basement, ...
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1
vote
2
answers
106
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Unsure if licensed electrician correctly wired old Zinsco 100-amp panel to new Siemens 200-amp subpanel
Our 1,572 sq. ft., 1972-built home in San Diego has a 100-amp Zinsco panel. We just learned that Zinsco busses and circuits are a known fire hazard. We talked to 4 licensed electrical companies, had ...
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0
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1
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45
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Can I temporarily power a 200A subpanel from a 100A feeder breaker? [duplicate]
Long story but I currently have a 200amp through-panel outside my temporary dwelling (lets call it the cabin) which feeds a 200amp panel inside the cabin (all of our circuits feed from the 200amp ...
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33
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Sub Panel location changed from side to the front side of the house access issue from the attic
Advice and idea's please
The location of the subpanel has been moved from the side of the house to now the front. Coming out of the attic we would have to be in the Eave straight down. There is not ...
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0
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1
answer
44
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50 AMP sub panel in new shed
I have built a new shed and would like to install a 50 amp sub panel for power to the building. I did not install conduit into the slab. I will need to come up the side of the slab and then enter ...
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1
answer
53
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PVC in wrong location need to transition from there to around the corner to subpanel [closed]
There was a 1" and 2 3/4 PVC ran to the wrong location they brought them up on the front corner of the house about a foot away from the edge .
The subpanel is located a foot and a half from the ...
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1
vote
2
answers
128
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Why isn’t my service (Main) panel space being utilized and everything is being fed to a sub panel?
Edit: As requested please see the attached photos.
@manassehkatz-Moving 2 Codidact Thank you for the reply. As you and a few repliers mentioned, I figured out how to upload some photos so hopefully ...
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3
votes
0
answers
45
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electrical conduit to panel connection question
I am in process of designing my solar system, but my questions are pure (IMO) electrical ones:
My PV panels are connected to microinverters which are connected to J-box. I am planning to connect the ...
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1
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1
answer
91
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Cost optimization for wiring electrical subpanel in my garage?
I will be installing a 100A subpanel in a detached garage. 100A for an EV charger and shop tools, and future proofing for a potential laneway house conversion.
The garage is relatively close at just ...
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4
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2
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785
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200 A Main Panel pass thru lugs to 200 A Subpanel
I currently have a 200 A main panel outside my cabin. Inside is the main 200 A shutoff and on the bottom of the bar are 2- pass thru lugs. The panel is a Square D Model# hom816m200ftrb Panel has 8 ...
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1
vote
1
answer
46
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Low voltage relay to control well pump -- would like run unswitched power to subpanel in shed by well
Well is about 130 feet down hill through woods from basement with 200A panel, pressure tank, and 120v pump switch.
When they put in the well 17 years ago, I asked that they put in a cord so we could ...
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1
vote
1
answer
93
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Grounding a dryer to a subpanel
Related to Grounding a 3-prong dryer plug, but with a small twist.
I have a NEMA 10-30 that runs back to my main panel. Since we had a leak in the laundry room, I'm having to open the wall. I'd like ...
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4
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3
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2k
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Is a double 30 amp breaker powering three rooms bad?
I just a bought a house and discovered that a double 30 amp breaker is hooked up to three rooms with approximately 12-15 receptacles. Is this dangerous or am I good?
Update:
I have been informed that ...
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1
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78
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Can I add a 100 amp subpanel off my 200 amp service?
I am going to be installing a 100 amp breaker from 200 amp panel about 600 feet away. I have asked PUD to give me an average of power for the last year and the highest amount for summer and for winter ...
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4
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3
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625
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Proper way to extend circuits to subpanel
I would like to move 8 x 20A circuits (room lights, ceiling fans, outlets in the bedrooms, and living room), and 1 x 50A (AC) circuit from left main panel to the right sub-panel. The sub is a "...
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2
votes
2
answers
108
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"Main" panel wiring
At my property the power company installed the meter with a box below it with a 200 AMP breaker. There are lugs inside to attach wires directly to the bar so they feed directly from that breaker. So....
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141
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How are these old (1900s era) US screw-in fuse boxes internally connected?
(ignore the arrows)
The above pictures show the electrical panels in a house that was built in Illinois in 1909. I do not know for sure how original this wiring is, but I would guess that some ...
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2
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84
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Running cable to sub panel 125amp
I am putting a 125amp sub panel beside my main breaker and am figuring out the correct wire sizes.
For the 2 hots to the sub-panel, I will use 1/0 gauge.
For the ground, I will use 4gauge aluminum.
...
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1
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53
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Exterior 125A subpanel for pedestal selection
I am building an outdoors area in my backyard that will necessitate of its own subpanel. I have placed 2in PCV sch40 conduit in the ground and I plan to pull wires to power a 125A panel. I will mount ...
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1
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76
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Want to feed a new subpanel from a grandfathered subpanel
I have a grandfathered subpanel that feeds my 5 ton package unit. 1988 install. Recently we added an AC system and they fed the condensing unit out of that sub panel and they tied the ground into the ...
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3
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82
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How to make a 150a sub panel work with a 200a main panel when the max breaker size if 125a
Alright, folks.
I screwed up and overlooked part of this project before I started.
I have a 200a residential main panel. I installed a 150a subpanel 10 ft away to isolate service for a basement suite ...
3
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1
answer
256
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Possible to convert disconnect to sub panel? [closed]
We've recently removed a hot tub that was originally installed in 1983. I'd like to know if it would be possible to convert the disconnect for the hot tub to a sub panel.
The breaker in the main panel ...
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1
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43
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running new feeder from exposed-basement load center to basement wall-mounted subpanel, + adj. duplex receptacle, THEN outside for 2 deck circuits
Project Context: about to place deck boards on wholly redone, raised, attached, front of house/front door accessing, 6'x20' deck. We are in IL, just south of the WI state line.
Before laying these ...
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1
answer
105
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Best way to power a nearby shed from house?
I have a seasonal vacation home on patio blocks (no foundation) and a 14 x 20 shed on the property - located about 8' from the house. The panel in the home was on an exterior wall, until an addition ...
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2
answers
103
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Only 3 Wires going to a sub panel
I have an old Siemens sub panel (1990s) that I would like to replace soon. I took the panel cover off and and there is 3 wires (2 hots and a neutral). if I am correct, you need 4 wires (2 hots, a ...
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2
votes
1
answer
60
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How to bring 1/0 wire through foundation below grade?
I’m building an off-grid cabin in California. I have an array of solar panels that feed into an inverter and batteries in a small utility shed, connected to a 150A main panel. I want to run 125A into ...
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52
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Should I use cable or wires in conduit for my new panel?
I'm redoing basically all of my electric and upgrading to 200A. The plans are in another question (Is my new electric/subpanel plan correct?) but the relevant part for this question is:
Service ...
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1
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66
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Cable sizing for subpanel
I’m in the process of finishing my basement. An existing 200amp Square D load center is in the basement. I want to add a subpanel in the basement about 75’ away. The subpanel will feed:
Dryer (50amp ...
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1
answer
45
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Circuit Breaker Size For Main Panel
I'm planning on adding a sub panel to my basement. I purchased a Square D 100 amp panel. Is there any code requirement for the size of breaker I need in the Main? My neighbor used 50amp. I've seen ...
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2
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92
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How can I supply an interior subpanel from a surface mounted exterior panel?
I recently purchased a house that has a flush mounted main panel on the exterior garage wall. I would like to install a surface mounted subpanel on the inside of the garage either right behind the ...
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38
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Attached garage with sub panel not wired correctly, needs upgrade [duplicate]
200 amp service, 30 amp breaker from main to the garage sub panel, which is 97 feet run. The conductor is 12/2, in the sub panel has two 20 amp breakers and three 15 amp. I want to upgrade to 200 amps,...
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2
answers
93
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Can I use a 70A panel on a 30A feeder breaker?
Since the Eaton 70 amp 2 space 4 circuit breaker box I have only lists 8 to 2 gauge wire can I still install my 10/3 UF cable with a double pole 20 to make 2 120v circuits in my shed?
I have a ...
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1
answer
76
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50AMP cord from generator into sub panel [closed]
My sub panel, located in the garage, does not have a main breaker. The main panel, located on the outside of the house, has a main breaker. The CB's in the main panel are as follows: Dryer, Subfeed, ...
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3
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325
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Can I use 1/0 copper wire from main breaker to a shop sub panel?
I have about a 75 foot run and have some spare copper 1/0 (1) wire so would like to save on buying something different.
Is this usable to tie into main panel lug, trench it in conduit and tie into a ...
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1
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1
answer
143
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Is my plan for running conduit to a new subpanel sound?
I'm installing a new subpanel in my basement that I am finishing and thinking to run some conduit from it out to the garage and down to the crawl space below for flexibility on adding future circuits ...
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1
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112
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Sub-Panel Separate Ground and Neutral Bars?
I have seen other posts about this question, but mine is slightly different. I have a sub-panel that has a bonded neutral and ground bar, which I believe is against NEC2008. I understand the concern ...
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2
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173
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Is my metal building enough to bond subpanel to for a earth ground with neutral bar isolated? [closed]
I want to follow up my prior subpanel inquiry with another question for my understanding and overall grasp of neutral-ground-main supply-subpanel and building’s relationship.
I have an all metal ...
2
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1
answer
451
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Bond neutral to service box and earth ground in shop sub?
I have ran underground ~40’ of 600V pvc ins. alumaflex 4way wire from code grounded 200A meter/load dist. combo box on permanent service pole to ungrounded 200A shop subpanel inside of shop. I don’t ...
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2
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427
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What type of wire for a 70 amp feed to shed 110 feet away?
I am planning to run single phase 220 volt power out to my shed. I'm think 70 amps out there to cover what I need: a few lights, mini fridge, compressor, welder, and a few power tools. (it's only ...
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1
answer
88
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Combined neutral ground bus subpanel
As I learn more about electrical code, it seems likely I have an incorrect subpanel wiring. One bus contains both neutral and grounds. They should be on separate bars, correct?
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1
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61
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Need help installing new sub panel
ok I have included pictures to help, The first picture is of the main panel and if you see at the top left it's labeled sub feed and it's 70 amp breaker that 70 amp breaker powers the second picture.
...
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2
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144
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Feeding Electric to outbuilding
I recently built a 30x50 shop with a small living area built out inside of it. Now I need to feed power to it.
I have a main 200amp feed through panel just below the meter. It's a Siemens ...
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1
answer
92
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What size breaker do I need for my garage?
I want two two post lifts, one 80 gallon compressor, 15,000 watt heater and outlets for normal use and lights.
What size breaker box do I need and what gauge wire do I need if is 80 to 100 feet away ...
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1
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1
answer
92
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Is my new electric/subpanel plan correct?
I currently have 100A service and I want to upgrade to 200A. At the same time, most of the wiring in my house is old and I don't trust it. Finally, the current main panel is in a bad place in the ...
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2
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1
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170
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Can I use a 6AWG ground wire for a 100A feeder that has a section SER 1-1-1-3 and a section THHN?
I'm running a feeder to a 100A sub-panel. The total run is about 90 feet. 60 feet is in an attic, and I'm planning to use Aluminum SER 1-1-1-3, the other 30 feet is through a 1.5" PVC conduit on ...
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1
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104
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How to wire Subpanel to main disconnect?
I need a 30a 120 circuit for new tools in my garage, or to reconfigure the tool motor for 220 and install that circuit. The feed from the meter comes directly into a 100a disconnect then via conduit ...
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0
votes
0
answers
66
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Remove jacket from SER cable for the last 5 feet? [duplicate]
I am running 2-2-2-4 AL SER cable from my main panel to a subpanel in my garage. Referring to the picture, I have my SER cable run in the basement from my main panel up to the other side of the wall ...
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1
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135
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Which wire size and conduit for a 200A subpanel?
I recently got a service upgrade to 200A.
My old sub panel (from which all branch circuits connect) was 100A and recently got upgraded as well but the feeders are unchanged. To support this, the main ...
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86
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Does a subpanel at boat lift need grounding rods?
I have a boat lift that is wired with 8/3+insulated ground (240v). I want to add a subpanel at the lift to install a 120 outlet and future overhead lights. Initially, I will have a GFCI 240 breaker ...
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