Questions tagged [electrical-panel]

For questions about panelboards (also known as "electrical panels", "circuit breaker panels", "fuse boxes", "distribution boards", "consumer units", or "load centers"). Questions about individual overcurrent protection devices should use [circuit-breaker].

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upgrading from 50 amp service to 100 amp service to a new box . Can I run 50 amp breaker out of it to supply my old box like it was originally?

Upgrading my current 50 amp service to 100 amp service. Can I now put my 100 amp service into this new panel and run a 50 amp double breaker to supply my old breaker panel?
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3 votes
1 answer
175 views

Wiring single-phase A/C to a 240V 'wild leg'?

I'm looking to install a ductless mini-split system to cool some computer equipment in a building where the main A/C is turned off when unoccupied. It's a 9000 BTU heat pump, electrically rated at 9 ...
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4 votes
2 answers
75 views

200A Meter Socket Ground / Bonding Strap

I'm replacing a meter socket (upgrading to 200A) operating under NEC2017, and saw something I didn't see on the old socket. Current setup - a 200A capable main panel, with 4ga stranded wire coming out ...
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  • 495
5 votes
1 answer
879 views

Can I hookup a electric cooktop on 20 Amp breaker?

I am planning to buy a electric cooktop of 2 burners. Right now I have a connection of 20 amp breaker with 12/2 wire. I am confused if both burner are opened at the same time. below are details and ...
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  • 570
0 votes
1 answer
53 views

Water heater or a bad breaker?

The water heater is outside in the utility room and wired to a 60amp double breaker. The breaker inside of the house is tripping but not the breaker outside. I have change both elements to see if that ...
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7 votes
1 answer
632 views

House Wired Incorrectly? - MWBC [duplicate]

I am working on finishing my basement. In my basement there is 3 junction boxes fed by 12/3 wire. Each junction box feeds a single 12/2 line (White-White, Black-Black, Ground-Ground, Red-Nothing). My ...
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1 vote
2 answers
127 views

Is my garage subpanel safe for 100 amps?

Not an electrician. Just wondering how much my subpanel can safely power. I have a 125-amp subpanel in my attached garage powered by two separate 6/2 NM-B cables with ground, run in the attic. ...
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0 votes
0 answers
26 views

Challenger SL12 (6-12) CDN. Sub panel door replacement [closed]

I have an old Challenger sub panel and looking to replace the front cover (door) There are 10 breakers which have no spacers between each one. Plus the door will not stay closed. Any help in finding a ...
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4 votes
1 answer
107 views

What can cause a partial and temporary loss of power?

My elderly mother lives, alone, in a townhouse (basement, full first floor, second floor "loft" type arrangement) in the United States. Construction date unknown, but probably 1990s. She ...
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2 votes
1 answer
23 views

Must SEU cable between the meter and load center be in conduit?

I have a very old house that at some point many decades ago had its electrical system partially updated (mixed knob and tube in a 70s 200A panel). Part of this upgrade relocated the panel to an ...
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1 vote
0 answers
111 views

Is any damage to an electrical cable acceptable?

We had electricians over today and they struggled to pull the cable for a new subpanel. They are planing to finish tomorrow. Now that they left, I checked the cable and the plastic protection is ...
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2 votes
1 answer
42 views

Wire type from meter base to panel, conduit end to end, underground, and through a crawl space

Here's my situation: Meter base is ~115' (conduit length) from my new 200 amp panel 2 1/2" conduit is run end to end under ground the last ~15' is in a crawl space and pops up directly into my ...
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1 vote
1 answer
72 views

Different vintages breakers in main panel

I'm considering purchasing a house and I took a look at the electrical panel. The house was built in 1979 and at some point they added a sub-panel. The breakers in the original panel look like a ...
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2 votes
1 answer
71 views

Can I reuse an existing grounding rod and water pipe ground location?

Apologies for the dual question, but it's within the same topic, so hopefully it won't be too out of bounds. Situation: Upgrading to a 200amp panel requires ground upgrades at the residence in ...
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1 vote
1 answer
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Grounding electrode conductor

I am installing a 125 AMP OUTDOOR MAIN LUG LOAD CENTER which will be protected by a 100Amp CB. The panel will support all the equipment for an inground pool. I have installed the pvc conduit ...
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0 votes
0 answers
92 views

Trying to improve and expand "professional" solar installation

Several years ago I contracted a local firm to install 56 solar panels on my roof. I know they used a licensed electrician and the utility company approved and installed my Net Meter but the system ...
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1 vote
0 answers
63 views

How to troubleshoot no power in half of mobile home?

My mobile home isn't getting power to roughly half of it. When I first lost power I was able to determine it was a bad receptacle because of some melting on the outlet which seemed to have interrupted ...
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1 vote
1 answer
54 views

Replacing sub panel, grounding electrode conductor

I am replacing the 200 amp sub panel in the basement, and trying to understand if it is required to run the grounding electrode wire to that sub panel or not. Currently, there is no grounding ...
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0 votes
0 answers
51 views

Connecting two separate services

I hope this make sense. My home used to be a church that was converted to a duplex. We turned it into a single family residence. Both sides have their own power service from our local electric company....
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3 votes
1 answer
98 views

Can neutrals be landed in an old panel which acts as a junction box?

I have a metered panel which had been stripped down and wires jumped over to new panel. The feed is still here but also jumped over. Can I land my neutrals from the new panel inside of the old main ...
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8 votes
2 answers
1k views

Add service entrance barriers to live electric panel - tips?

My electric panel does not have service entrance barriers installed. I purchased the correct ones, and I'm seeking any tips on installing them on the live panel. Rubber shoes, one hand behind back, ...
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0 votes
3 answers
267 views

How to identify which live wire go with which neutral wire?

Context I have an old electrical panel, with fuses. I want to replace it with a new electrical panel with GFCI breaker. In this panel there some problems, no color were respected, and the live wire ...
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1 vote
1 answer
64 views

Can i run a 30amp rv outlet with gfi outlet with 30 and 20 amp breakers in box off my main 100amp breakers

I have a 100amp service with 2 100amp breakers under my meter. Can I run a RV outlet box with a 30amp breaker and a 20amp breaker for a 20amp GFCI outlet in the box off the main panel, or should I run ...
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2 votes
1 answer
144 views

Understanding bad electrical panel wireing [closed]

I'm a but puzzled by the electrical panel in the attached picture and trying to guess/figure out what is going on. If relevant, this is in France. The issue is with two breakers in the red box in the ...
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1 vote
1 answer
62 views

Is it ok to use 14-3 wire to connect fan and recessed light

We have pre wiring for fan. It's 14-3 wire - white, black, red and ground. The black wire has constant power and I am using it to run the ceiling fan. I have to use remote to turn the fan/light on and ...
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0 votes
2 answers
71 views

Where is my neutral bar?

Hi, I need to add a 30 amp double pole breaker to my full 100 amp QO breakers panel. I am planning on getting two tandem breakers, that I can place in the bottom part of my panel. Now for the 30 amp ...
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0 votes
1 answer
135 views

Does Square D make an extension lug kit for adding a sub panel?

I have a Square D QO 200 amp main panel. I want to add a Square D Homeline 150 amp sub panel. Does Square D make an expansion lug kit for the QO panel that would allow me to tie my sub panel's service ...
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0 votes
0 answers
23 views

How to wire multiple 12w pot lights w/boxes & wall switches onto a single 20 amp circuit?

Hello I have a RV using a 30 amp distribution panel/system. I want to install 5 120V prepackaged pot lights with receptacle boxes. and wire in 5 light switches. I am a novice electrician and I'm not ...
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5 votes
1 answer
503 views

Dual Function AFCI/GFCI breakers trip under any load

This is a new subpanel in a workshop and the electrician told me because it's new all circuits have to be AFCI and because it's an outbuilding it should be GFCI too. So, I purchased these breakers in ...
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4 votes
2 answers
508 views

Electrical - Conflicting opinions on sub-panel upgrade

My issue is that I am out of breaker space in my current 100A 8/16, 45 year old sub-panel. One electrician said that to add more space for potential circuits, they can swap the sub panel for a 100A 12/...
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3 votes
1 answer
78 views

Can I use side knockouts in a flush-mounted panel?

I am installing a 36" tall electrical panel between the studs. It will be flush with the drywall. I have several questions: Can I use the side knockouts? I could do without them, but it seems ...
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2 votes
1 answer
68 views

AC disconnect vs. Hot tub disconnect?

I've finished the run from my Main to my new subpanel. The subpanel is not within the required 25' of my hot tub, I have a 50 amp GFCI installed in the subpanel which is dedicated to the hot tub. I ...
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0 votes
0 answers
55 views

What cable do I use to connect my generator to my panel?

What is the type of cable I should use for electrical panels for generator sets in the United States? If I am not wrong, the American standard for this kind of cable should be rated 600 volts or less. ...
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0 votes
0 answers
54 views

Installing 125a sub panel off 200a outside panel with 150a breaker that powers house panel

My electric meter is on a pole with a breaker panel under it. The panel is 200a with a 200a main breaker and a 150a breaker in the outside panel that feeds the 200a panel in my house. I'm planning to ...
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2 votes
1 answer
63 views

Best way to install multiple whole house surge protectors

I’m just learning about whole home surge protection devices (SPDs). I recently upgraded my electrical panel and decided to add the panel brand’s latest model of in-panel SPD. The data sheet for the ...
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2 votes
1 answer
66 views

Running circuits in a sub-panel

Background: I have an older home with aluminum wiring, all that is working fine and I'm aware of the specifics of using aluminum. However my house doesn't have an adequate number of circuits and the ...
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0 votes
2 answers
75 views

Need help going from 400 amp panel to a 200 amp

I want to run 3/0 aluminum wire 135 feet to my 200 amp panel from my 400 amp main. Is this wire sufficient and will it pull thru 2 1/2" conduit (mine is 3” choked down to 2 1/2" on the last ...
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14 votes
2 answers
2k views

If my 240v cooktop does not have a neutral, is it safe just to cap the neutral and leave it?

I bought a cooktop which has 3 wires: Black Red Green The wiring in my home is 4 wires: Black Red White Bare I saw the instruction for 3-wire to 4-wire connection, it states to leave the white ...
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1 vote
1 answer
100 views

splice in panel - why done this way?

I have a junction box that seems to be wired as shown in the attached image, with the hot and neutral coming from two different wires out of the panel, and the other two wires spliced together inside ...
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0 votes
1 answer
48 views

Home energy monitoring in split floor with one compressor

I have an odd situation where I live on a floor split in two and I want to split the electricity bill fairly with my floormate. I am looking at the home energy monitoring systems that have all the ...
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3 votes
1 answer
228 views

Bonded neutral generator - connecting to house and removing bond in main panel instead of within generator

When connecting a generator to a house, since it's a bonded neutral generator, I was told that I need to first remove the bond within the generator since there's already a house bond. I was going to ...
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2 votes
2 answers
86 views

Should a subpanel be bonded if it's not grounded to main panel?

I have a subpanel that was installed probably back in the 80s. It has a ground wire running to a local ground rod, not back to the main panel. The ground bar in the panel is not bonded to the common (...
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0 votes
1 answer
68 views

Looking for NEC code article number for separate ground and neutral in subpanel being fed from service entrance

Need code article justifying why I can isolate grounded and grounding conductor in subpanel. Subpanel is fed from a 200-amp service.
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0 votes
3 answers
98 views

Two main panels? One generator to power them all!

I believe I have two main panels that feed from one service line coming from the street. My assumption is they split the wire inside the wall with correctly sized wires to accomplish this (See older ...
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0 votes
2 answers
111 views

My breaker panel is full but I need to add at least 3 double pole 30 amp breakers. Will I exceed my service line rating?

My breaker panel is full, but I need to add at least 3 double pole 30 amp breakers. I believe after I do the math on the room size and what would be needed for space heating baseboards I'm assuming I ...
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3 votes
1 answer
172 views

Putting two circuits on one breaker to avoid a shared neutral

How can I correct the neutral shared with breaker 1 and 2. I'm hoping I can pigtail these two circuits to one breaker. One circuit is for the 2nd (10'x10') and 3rd (10'x12') bedroom. The 2nd bedroom ...
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0 votes
0 answers
41 views

What size wire and type to run a 100ft span from a 200amp ranch panel

I live in Douglas County,Oregon Im installing a new 200amp ranch panel. I need to then go from the ranch panel 100ft overhead to an rainproof outside service panel. What size & type wire can I ...
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1 vote
1 answer
49 views

Can I install 40/50 quad breaker on main panel for 14-50 outlet install?

I'm waiting on my EV to be delivered so figured I'd prep by getting the nema 14-50 outlet installed ahead of time. I called several electricians but it appears that they strategy for installing is ...
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0 votes
1 answer
70 views

What is the best way for pulling 3- 4/0 wires and bare ground through 2” conduit [closed]

Pulling 200 amp service from meter to panel
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1 vote
4 answers
142 views

Upgrade 100A panel to use more solar [closed]

My question is: Is it reasonable to upgrade to a 200A main panel but with a 125A breaker? Here is a draft of my thinking based on feedback so far: Upgrade my main panel with 125A service over ...
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