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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Requirements for how electrical ground bonding jumper enters structure and reaches subpanel?

Burbank, CA I added a 125 A subpanel to my detached garage (2/0 feeders), and ran copper ground between it and the main panel. I’m now installing a pair of grounding electrodes for the subpanel, and ...
Rick's user avatar
  • 525
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1 answer
73 views

Only 2 Neutral wires in my panel?

I recently got this old condo, the electrical panel looked concerning. The previous owner renovated 4 years ago and I believe some electrical work was done. I only see two neutral wires connected to ...
Qingami's user avatar
1 vote
2 answers
93 views

How many 100A/200A conductors can I run through a single conduit from my main service panel?

Current situation: main service panel (MSP) with 200A service on exterior wall. It feeds a single sub-panel via #2 copper conductors and is protected by a 100A breaker. These three #2 conductors to ...
divB's user avatar
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1 vote
1 answer
70 views

Load center is a subpanel if upstream breaker?

Oregon (NEC 2023) The power meter from the utility is mounted on an exterior garage wall. Right next to the meter box, but on the interior side, is a breaker box with a single 200A breaker. That ...
tau's user avatar
  • 205
1 vote
1 answer
52 views

Is the power inlet near a hot tub outlet usable as it is?

I have a subpanel outside located where a hot tub once was. The hot tub was on a 60 amp breaker in the subpanel, then ran to the main panel (interlock installed) to another 60 amp breaker. There was ...
Jeryl Hermis's user avatar
1 vote
3 answers
56 views

Dual-function (AFCI/GFCI) and 2-POLE breaker

I recently bought my first house and have been investigating the GFCI fix to branch circuits that (due to installation date) do not have equipment grounding conductor installed. My receptacle boxes ...
nViz's user avatar
  • 53
0 votes
2 answers
51 views

Is there a standard screwsize / thread for wiring applications?

A sewage grinder pump controller's screws are rusty. I would like to replace them. Is there a standard size screw or is it a free-for-all?
gatorback's user avatar
  • 3,088
0 votes
0 answers
42 views

Can this hook up be possible?

I'm installing a northflo 50000 btu heat pump it say runs at 12 amps..@) 20 amp breaker at main panel , can i replace my 40 gfi breaker in spa pack with a 20 amp?
hgeris's user avatar
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4 votes
3 answers
1k views

Does my freezer really need a dedicated breaker? [closed]

I just purchased a garage freezer: GE FCM22DLCWW. On the side of the freezer, it says 115 VAC 60Hz 2.0 AMPS. In the Q/A section of the website I bought it from, it says that the running wattage of ...
John's user avatar
  • 139
0 votes
1 answer
60 views

Cables to meter box are too short

I'm replacing a 45 year old meter box that the contacts had burnt up in. The service drop and main supply cables are too short to reach the new lugs. Can the main cables from the house be spliced ...
Tim Spires's user avatar
1 vote
0 answers
30 views

How to divide circuit load without subpanel

I have a project where I need to use two 12 amp circuits and they ran one 30amp breaker with 10awg cable. The load lines are 2 devices that pull 10 to 12 amps. Can I connect both loads on to 10awg ...
Ritesh's user avatar
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4 votes
1 answer
258 views

Grounding a branch circuit with EGC attached to a different panel

I'm trying to add an equipment ground to an old branch circuit, and I had an idea about how to do it in a slightly non-standard way, but I'm not sure if it's safe. I drew a diagram to explain my ...
nViz's user avatar
  • 53
4 votes
1 answer
49 views

Eaton CHSPT2ULTRA installation location?

My Eaton CHSPT2ULTRA is connected to the last breaker (bottom right) in my panel. It seems like it should be the first breaker (upper left) so that it would be in between the main and the rest if the ...
Steve Gass's user avatar
2 votes
0 answers
79 views

Neutral ground bonding in main service panel

I purchased a property with a 200 amp outdoor main service panel below the power company's meter. I want to use this to run power supply to my mobile home about 30 feet away. I also want to supply a ...
Wanell Drake's user avatar
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0 answers
70 views

Why is my voltage tester beeping only when the lights are off?

I am trying to figure out what's going on in the junction box from a bedroom in my home. A part of this involves using my tester to see if any wires/components react to having certain things turned on/...
Xavi's user avatar
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0 votes
1 answer
62 views

How can I remotely control individual baseboard heaters?

I have a vacation home that sits over winter with electric baseboard heating. When the summer season starts up I want to be able to make sure the baseboard heating is turned off via the breaker so ...
BC Racing's user avatar
4 votes
1 answer
293 views

Can I run a second 175 Amp sub-panel from a 200 Amp main panel?

I have a 200 amp main service at a property I recently bought. It’s feeding a 175 amp breaker panel at a small home and garage. I was wondering if it was okay to run another 175-200 amp panel from the ...
Cl1154's user avatar
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0 votes
1 answer
41 views

Can I use a siemens type qaf2 breaker to replace a siemens type mp-at breaker? [closed]

can I replace a siemens 15 amp type MP-AT breaker with a 15 amp siemens type QAF2 breaker
randy's user avatar
  • 1
3 votes
2 answers
388 views

Whole-house surge protection: "intramural" surges

Is there such a thing as a whole-house surge protector installed at or near the panel that can shield devices inside the home from surges originating on the mains, as well as shield devices inside the ...
mr blint's user avatar
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0 votes
1 answer
70 views

What size breaker panels do I need for two small buildings?

I have 2 buildings I'm wanting to supply power to strictly as a service and not adding the service from another source. The first building is more like a tiny home wanting to install 14 outlets, 4 ...
Mary Daniels's user avatar
1 vote
1 answer
48 views

Does 100A MSP upgrade to 200A service panel REQUIRE a Meter Upgrade?

I'm working on an 8 slot 100A MSP that is a replacement for a fuse box. There are double taps and other abnormalities that have lead to power outages in some rooms of a client's home. I thought to ...
wlbush66's user avatar
4 votes
1 answer
822 views

Hot Tub GFCI Breaker continously trips at sub-panel

Context: We've recently installed a Viking Legacy II hot tub, with an outdoor disconnect, and indoor subpanel. After troubleshooting various issues, I've exceeded my knowledge and am in need of help ...
hhsnopek's user avatar
  • 143
0 votes
2 answers
67 views

GFCI keeps randomly tripping/ exposed wiring in breaker box [duplicate]

I've been having multiple random trips at my GFCI outlet in my food trailer. I have cleaned the outlet and made sure no moisture/ dust was present. I also rechecked the wiring on this outlet and it's ...
souza's user avatar
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1 vote
3 answers
632 views

Am I required to replace the aluminum wire with copper when selling my home? [closed]

I am selling a home built in 1970 that has some copper wiring in fuse box. Is it necessary to replace copper wiring in a breaker box to sell my home built in the 70s?
user184998's user avatar
0 votes
1 answer
45 views

Is there a minimum height for a meter base / disconnect panel?

I'm changing from overhead to underground service. Two inch schedule forty is run from the pole to the house. Question is, is there a minimum height for the meter base / disconnect?
Michael Meek's user avatar
0 votes
2 answers
108 views

Which fuse to use SL or TL?

Have a bad fuze of 30 am. When I went to lows I have to options SL or TL. I don’t know what fuze to use. This old fuse box in my garage. And has fuse( green one) got bad. Edited- I have added breaker ...
PowerTech's user avatar
  • 640
6 votes
0 answers
117 views

Incorrect breakers in Thomas & Betts Panel

I have a Thomas & Betts panel with 40 slots and was going about trying map out the circuits when I noticed a few suspect breakers. The entire right side of the panel contains only T&B (type TB)...
Jwawa's user avatar
  • 61
3 votes
2 answers
77 views

Grounding for junction box above panel

I'm planning to mount a 12x12x6 junction box above my new panel to extend some wires that do not reach into my new panel and add CT's for energy monitoring. I saw an electrician on Youtube that ...
Christian K's user avatar
0 votes
0 answers
33 views

What events on a power grid may cause RCCB tripping

For a long time I thought that one of my appliances is the cause of random RCCB trippings that happen roughly once per month. Back when it started happening I've changed RCCBs, even switching to a ...
GreenScape's user avatar
0 votes
0 answers
40 views

How do I install a ground for the transformer for my doorbell?

I installed a Ring doorbell and it says I need a different transformer than what I have. My current one is attached to the bottom of my breaker box. The old one has no ground but the new one does. Can ...
Mullenator's user avatar
2 votes
2 answers
116 views

Emergency Disconnect Ground Questions

I want to start by saying I’m not an electrician. I’m building my own home and I’m doing the electrical myself. This is completely legal in my state of Maine. I have a question on how to properly ...
Joelp's user avatar
  • 21
3 votes
3 answers
291 views

Where do I connect 2 gauge neutral and ground wires for a subpanel in the main panel?

I’m installing this 100 amp square D QO subpanel. I’m running 2 gauge stranded wire from a 100 amp feeder breaker to the sub panel main lugs. There is no opening large enough on the neutral bar for ...
robert clay's user avatar
0 votes
0 answers
45 views

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 ...
user112697's user avatar
4 votes
4 answers
874 views

Adding or converting a one phase circuit on a three phase panel

I have this three-phase panel and I'm looking to add or convert an existing circuit for a US 220V residential (guessing single-phase) electric dryer. I have the 4-prong plug/enclosure and the circuit ...
Merrick's user avatar
  • 155
0 votes
2 answers
69 views

Has a new panel outside the house made my main house panel a subpanel?

I had a solar system installed. The old 70s main panel never had a master switch to shut all the breakers down. The new outside panel now has a correct 200 Amp breaker. The breaker is labeled Main ...
Michael's user avatar
0 votes
0 answers
23 views

Shed electrical [duplicate]

I have a 10x16 shop that is 65ft from my panel I want to run power to the shop for a computer a air conditioner which I’ll put on its own breaker since in the winter I will use a heater on that plug. ...
David's user avatar
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0 votes
2 answers
48 views

Can I safely remove existing ground wire from neutral/ground buss in service panel?

I have included a picture of my service panel. My situation is, I need to remove the green wire (ground) that is connected on the neutral/ground bussbar. This gound wire was conected to a previous spa ...
D Gordon's user avatar
0 votes
3 answers
102 views

Why do my kitchen circuits use a shared neutral circuit with 2 breakers and hot tabs broken?

With both breakers tied together, you would lose both circuits if one tripped. It seems a wasted effort.
john christensen's user avatar
0 votes
2 answers
118 views

converting a 10-30 receptacle to a 6-50

I have a 10-30 receptacle in my garage that has never been used. It is attached to a safety switch. I have added a picture to show what is there. Wiring into the box looks to be individual wires run ...
Brandon's user avatar
0 votes
1 answer
91 views

Neutral Ground Bonding with 2 Main Breakers

My electrical service has a meter outside, followed immediately by a 200A breaker, then feeder wires head into my basement and supply a “main” panel with another 200a main breaker. This main panel has ...
William S's user avatar
0 votes
2 answers
62 views

Installed New CHFP120DF breaker, and it is displaying ground fault without connection

I just installed a new Eaton CHFP120DF breaker, and it is displaying ground fault (LED blinks 5 times) without being attached to load neutral and power wires. I understand this may not be a defective ...
Bjorn's user avatar
  • 11
2 votes
2 answers
110 views

Can I use this disconnect between meter pan and main panel?

I'm planning to add a disconnect on the outside of my house between a meter pan and my 100A main panel (inside). This is a follow up question to an earlier question. After I've added the disconnect I ...
Christian K's user avatar
4 votes
6 answers
747 views

Determining wire gauge based on MCA and max fuse size

I've been doing research on the electrical system in my home, for my own knowledge and also to verify things are code compliant. I have a Mitsubishi mini-split which was installed 3 years ago by an ...
DaveinPA's user avatar
  • 201
0 votes
1 answer
58 views

Sub panel voltage problem? 240v one leg?

Just moved into a new house with peculiar wiring—- Anyway i have a pushmatic sub panel in a shed about 75-100 feet away It starts at the main panel (in garage) With a 50amp breaker One leg reads 120- ...
Nicholas Brennan's user avatar
1 vote
1 answer
34 views

Ground rod to exterior disconnect panel routing & panel attachment

I'm getting my shop power reconnected after prior storm damage and the inspector said he'd need to see a ground rod connection to the panel. I've included pictures of the existing ground rod though it ...
Merrick's user avatar
  • 155
0 votes
1 answer
73 views

Watertight way to bring circuits in from exterior mounted panel

I'm running 3 circuits from a panel mounted on the outside of a backyard studio shed to the inside of the shed, and am not sure how to best do this. The shed is stud construction with 1/2" zip ...
Rufus L's user avatar
  • 103
13 votes
2 answers
4k views

Why did my water heater wire burn up?

Here is a picture of the damage. Thank goodness they're was no fire. We had our breaker panel replaced today. I don't know if that's related or just coincidence. Tonight about 8:30pm while getting ...
JBurt's user avatar
  • 367
-1 votes
1 answer
138 views

I switched breaker boxes on my house but when I started turning on lights the bulbs blew and surge protectors fried [closed]

I changed my electrical breaker box. When I turned lights on the bulbs blew and the surge protector sparked and shut off. The only thing I could figure is the ground line to the ground from the box ...
Henry Lewis's user avatar
8 votes
2 answers
2k views

Are there any obvious issues in my DIY main panel wiring?

I'm in the process of a DIY 400A service upgrade, I roughly wired up the main panel waiting for the utility to schedule the switchover to the new line. For now I have installed a single 125A breaker ...
Alessio Sangalli's user avatar
2 votes
1 answer
92 views

Need help adding 240V outlet to my residential garage

I am adding a 240V outlet to my garage, wired from directly outside the garage (12" from panel to outlet). I have a conveyor dryer unit for a small business I run from home. This unit has a 4 ...
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