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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2answers
65 views

What is the correct way to attach two grounding sources to my electrical panel?

I replaced my existing electrical panel with this electrical panel in order to have more available slots to redo my kitchen. I have one 6# copper wire ran & attached the water main and one 6# ...
4
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4answers
135 views

60 amp breaker feeding a subpanel with breakers totaling 100 amps

Can I run a 40 amp central ac unit and a 30 amp ac unit on a subpanel protected by a 60 amp breaker? There are also lower level outlets and an outside gfci outlet with two 15 amp breakers in the ...
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2answers
68 views

Can I change a 15a breaker with a 20a breaker?

I upgraded my bathroom fan to a bigger, more powerful fan. The problem is it is on the same 15a breaker as the 2 bedrooms and the bathroom. It is connected to a light above my tub and the three wires ...
3
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2answers
171 views

Possible to ground-fault protect both legs of a MWBC with two single-pole breakers?

To get a MWBC working, with both legs GF protected, I installed 2 Single Pole GFI breakers, on adjacent slots, with a handle-tie. Since there are 2 lugs for Neutral wires, and only one neutral coming ...
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1answer
65 views

Does code allow a main-lug-only panel connected to the meter lugs?

We have a single family home with 200 amp service. One main breaker inside the house. We needed a 220v 40amp power supply outside. Instead of running a circuit from our main breaker, he connected a ...
1
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1answer
81 views

Code exception for not installing AFCI's in kitchen's?

I'm having an electrician replace my old Zinsco panel with a new Eaton panel. My understanding is that all the 120V 15A and 20A circuits for the house (no basements, garages etc) need to have AFCI or ...
2
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1answer
70 views

Wiring question - Swapping in GFCI breaker for my dryer

I got a GFCI 30amp breaker and will be putting it in for my dryer circuit. Just want to confirm I'll be wiring this correctly before actually going ahead with it. In the red circle is the white ...
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2answers
54 views

Is there such a thing as an arc-fault breaker in 1/2” size for GE?

The panel is loaded but not to capacity. To bring the current sub-panel up to the imminent adoption of the 2017 code, half-sized AFCI or combination breakers would be great. Is there such a thing as ...
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2answers
113 views

What load panel should I use?

About 25 years ago I built a solid log cabin with 200amp service. The load center is on an interior wall (and hard to get at) and there is a 200amp disconnect just below the meter outside (so the load ...
2
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1answer
53 views

Can I install a subpanel on top of boards instead of of between studs?

I am installing/replacing a sub-panel in the basement of a split-level. The new panel is on an unfinished wall (drywall on opposite side, towards living-room, but no drywall on the basement side), but ...
1
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1answer
55 views

GFCI Circuit Breaker 'Test' works, but doesn't trip with plug tester

I have a sub panel in my basement that has multiple GFCI circuit breakers. All the 'TEST' buttons work. However, when using a plug tester, they don't cause the breaker to 'Trip'. The tester was ...
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1answer
30 views

Rating for #2 Aluminum XLPE underground utility feed

The utility feed to my duplex with two 100A meters on it, is an underground cable in conduit. The main panel is 200A, but the utility feed is only 2 AWG Aluminum. The cable marking is: ALCAN 2 AWG ...
2
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1answer
101 views

Reading electrical clamp tester higher voltage/amp 400A

A sub panel CH 60AMP 3 Pole breaker keeps tripping. I'd like to test the AMPs on the three wires. My clamp tool measures 7.9A while on the 400A AC setting. That seems awfully low to trip a 60 AMP ...
2
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3answers
117 views

Strategy to free up slot for a 50 amp 240 volt circuit

My first ever post here. Can someone explain to me the best strategy for freeing up a pole/slot so that I can install a two-pole 50 amp 240 volt circuit on this panel? I have a free slot at the bottom ...
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2answers
62 views

Using 12/3 non-metallic cable to carry 2 circuits

I'm renovating a house and am finding lots of questionable electrical work. My recent finding is a 12/3 cable that carries two circuits from my electrical panel that branches off to two different ...
0
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1answer
28 views

Ceiling Fan Wiring Confusion P2

The 2 black + 1 white is my always-hot bundle. I won't use it (unless I want to power the fan 24x7 and use a remote on it). The 2 white is the neutral bundle. My fan will need that. The loose black is ...
1
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1answer
55 views

Looking for NEC reference on resizing main panel that will feed a new panel for 2nd unit

I've replaced several meter panels and subpanels over the years but I never had to figure out amp ratings for a new dual meter main. Here is what is existing: 125A meter main panel feeding house 1 1/...
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0answers
36 views

What would trip a Eaton 20a gfci breaker

Fairly new less than one month old Eaton 20a gfci breaker to trip with nothing but the white common coil attached. Meaning the breaker is in the main box with no load circuit connected. Meaning I ...
1
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0answers
51 views

Shocked while main panel breaker was off

Yesterday I pulled a new wire to an existing breaker in our electric panel. Obvious first step was to turn off the main breaker, which I verified with a non-contact voltage tester (confirmed working ...
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4answers
109 views

Breaker keeps tripping even when nothing plugged in

My bedroom breaker keeps tripping even when nothing is plugged in to any of the outlet linked to this breaker. Sometimes it will keep tripping when I try to push it back up and after 10-20 min' turn ...
1
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0answers
55 views

Can I install a 60A branch circuit breaker in a 60A sub-panel?

I am connecting a kiln which requires a 60 amp circuit to a sub-panel. The sub-panel is off the 100 amp main fed by a 60 amp breaker. Do I need to increase the sub panel breaker size or is as is ok?
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0answers
73 views

If the power is not working in a circuit , how do you determine which breaker controls it?

If the power is not working in a circuit, how do you determine which breaker controls it?
3
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1answer
74 views

questions hooking up electric outbuilding to main power pole

I need to hook up the outbuilding to the main power pole. It was hooked up before and we moved, moving the outbuilding. I have 10/2 WG UFB wire. the photo shows main power pole. What size amp do I ...
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3answers
65 views

Should the main circuit breaker be AFCI, CAFCI or just standard?

Let's say all the other breakers in the panel are standard (i.e. not ACFI). Would it help to have the main breaker AFCI or CAFCI? Conversely, let's say the other breakers are all CAFCI. Can I use a ...
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2answers
63 views

We now have two cars that are plug in, and we can't charge both at same time!!! Can we “split” a circuit? [closed]

The entire garage and one outdoor outlet are on the same 15amp breaker (110v) and it cannot handle that kind of load as each charger pulls about 11 amps. I am trying to guestimate the cost of adding ...
0
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1answer
38 views

Multiple breakers controlling the same lights - how can this be?

We have started having trouble with our outside package unit A/C stopping on its own, before it reaches the correct temp. I can identify 3 issues: There are multiple lights (bath, just one light over ...
2
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0answers
46 views

Can I use an outside feeder tap to run power to a garage?

I have a newly built garage that I would like to add a sub panel. I have a QO load center QOB8-16L 100S which is rated for 100 amps. However, I think 60 amps would be more than adequate for my needs ...
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2answers
56 views

What size wire and breaker should I use for a small one bedroom cottage?

Have a small one bedroom cottage. I need to install a subpanel in it. I have a two hundred amp panel 30 feet away. The only things I will power in the cottage are two can lights, six outlets, small ...
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2answers
51 views

multi-wire branch circuit breaker question

i have several outside floodlights, and several outside outlets. family member wired it plugging into the outside outlets causes the breaker to trip using a 4-conductor cable(1 black, 1 red, 1 ...
5
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5answers
5k views

I do not have power to all my breakers

I exchanged my double pole 40 ampere breaker that supplied my sub panel for my garage with a single pole 40 ampere and now out of my six breakers in the sub panel only 1,3, and 5 have power. How do I ...
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0answers
49 views

Replacing a cable in an electrical panel: Need hints and names

Previous owner left a chunk of 3 line triplex(2 insulated + ground) 4 ga aluminum into the main panel, hooked it up to a 50A breaker, and left the other end floating free in the rafter space of our ...
1
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0answers
33 views

How do I compute how much electric service to provision?

Generic question here. I won't self-answer. Suppose I am adding significant new loads to an existing house - say, a 50A hot tub and a 50A RV receptacle. Those are big loads for a modest gas home. ...
1
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1answer
81 views

Can I wire both a 50 amp hot tub and 50 amp RV plug in the same box?

I have two projects in the works, installing a hot tub and building an RV pad. Both the RV and hot tub run on 50 amps and 220 volts. RV's plug-in but hot tubs are wired directly. Is there a single ...
1
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2answers
97 views

What alternatives to Stab-Lok breakers are there?

After reading this article: https://inspectapedia.com/fpe/Federal_Pioneer_Panel_Safety.php and from it a link to this one: https://inspectapedia.com/electric/Circuit-Breaker-Defects-Aronstein-IEEE-...
3
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0answers
50 views

200Amp Panel upgrade, Flush panel to Surface mount

I'm looking to get my house panel upgraded from a 100 amp FPE firestarter panel to new Square D Panel. The panel I want to use is surface mount and the one built into the house in the 1970's is flush ...
1
vote
1answer
90 views

Why does a breaker buzz when you turn it on?

I've had an issue recently where turning on the light in one room occasionally turns off the power in that breaker. The breaker doesn't actually appear to be tripped, but resetting the breaker will ...
0
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0answers
36 views

Dryer (30amp) on Single Pole Breaker

My 200amp panel is pretty full so I started mapping all the circuits since I suspected that there are abandoned circuits or circuits with very small loads on them. I am used to finding dryers on 30amp ...
0
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2answers
93 views

Combining wires from two breakers to one appliance?

I have a wall oven and a microwave oven, connected to 30A and 20A breakers respectively, and both are 240V. Now I'm thinking of replacing it with another double-oven model that runs a single wire ...
0
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0answers
49 views

Putting a sub panel for a home office/bedroom?

Recently, our neighborhood had a power outage for a few days. Causing my office/bedroom to lose power completely which was a bit of an inconvenience. Out of curiosity, I began googling about ...
0
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1answer
61 views

Is a 60A sub-panel adequate for my workshop/garage? [closed]

I am upgrading the service to the garage. The old needs total replacement. In the garage i will be using 50A welder small compressor lighting for 400 square foot garage 6 20A receptacles Would a 60A ...
1
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3answers
52 views

When pigtailing a second load to circuit

If I add an outlet near the electric panel and pig-tail the hot wire to an existing 15a breaker do I have to attach the neutral and ground to a specific spot or any open slot on their respective bars?
-1
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2answers
65 views

tesla charger installation 60 amp vs 50 amps cable [closed]

I am planning to run a 60 amp wire and install Nema 14-50 with 50 amp breaker on it. That way in future if i buy a tesla wall connector, i can install the 60 amp breaker and the new receptacle on the ...
1
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1answer
58 views

200 Amp exterior meter and disconnect with interior main panel

Can I have an exterior 200A meter and disconnect with the 200A main panel in the interior some 20-30 ft. away? It has to meet California residential code. I'm trying to avoid the cost of an exterior ...
1
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3answers
102 views

Can you attach more than one wire in a given hole on a bus in an electrical panel?

Is it permissible to attach more than one neutral or ground wire to any terminal screw on the service panel bus? A home inspector says this is not allowed. THAT DOESN'T SEEM RIGHT, because all of ...
3
votes
1answer
87 views

Circuit Not on Any Breaker, but Off with Main Breaker

Looking through my main panel today I discovered that at least 1 circuit does not appear to be attacked to any breaker. If I turn off the main breaker of the house, the circuit does turn off. How can ...
2
votes
3answers
103 views

My house breaker box have only breakers which seat only 1 wire. No seat for a load neutral. Can I still install a GFCI Breaker?

My house breaker box have only breakers which seat only 1 wire. No seat for a load neutral. Literally one screw on the breaker. There are neutrals on the bar and everything works no problem. I want ...
0
votes
1answer
67 views

Outlets are half voltage and/or don't work

I have a old house with knob and tube wiring and today my breaker keeps tripping. I have a couple of 240v outlets (dryer and range) that are on different breakers. I get 115v readings from each of ...
15
votes
4answers
6k views

Loss of power when I remove item from the outlet

I have this unusual electrical issue in our master bedroom. I was wondering if anyone else has experienced this. We have this $3 LED night light in our bedroom and when we take it out, the power/...
3
votes
2answers
448 views

Second 100 amp breaker inside existing 200 amp residential panel for new detached garage

I'm planning to build a new detached garage. My question is can I add a second 100 amp breaker to my existing 200 amp Square D residential panel box? The existing 100 amp breaker goes to my quest ...
1
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2answers
82 views

IBT and whole house transfer switch

The inter-system bonding termination (IBT) is where other services like telephone and cable TV get their ground bonds from the house's grounding electrode system (ground rods). 2014 NEC (NJ) 250.94 ...