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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1answer
41 views

Power Pole ground to iron grill connector

This is my utility pole ground wire: My service entrance has no ground. I need to connect the ground wire from the pole directly to the service panel iron grill housing to protect it in case live ...
2
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2answers
152 views

Flame retartdant nonconductive panel cover

Note the service entrance has only two hot wires and no ground. Update: Some suggest metal cover but the reason I can't use metal is the grills or all the iron and enclosure are not grounded. We only ...
1
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2answers
102 views

Flexible Nonmetallic Conduit inside wall?

I’m finishing up wiring a sub panel in an outbuilding. There is an underground run of PVC conduit with THWN, which comes up to an LB on the exterior wall. On the inside I used flexible conduit so I ...
0
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1answer
57 views

feeding both sides of load center from 120vac backup source

In a situation of temporary backup power (short-term grid outages), is it ok to feed both "sides" of a standard split-phase main load center from a single 120vac backup source (e.g. an inverter driven ...
2
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3answers
370 views

2 load centers under 1 meter: do you need bonding and main breakers at both?

Here's my layout as it stands: meter | 200A disconnect, neutral and ground bonded | | | mobile home main panel (200A main breaker, neutral and ground not bonded) I would like to run another 100A ...
5
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3answers
728 views

How is the phase of 120V AC established in a North American home?

I am in the early stages of reading about converting 120V AC to 240V AC to power an electric dryer. One way to create 240V AC is to "find" two out of phase 120V outlets. My question is HOW does ...
1
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1answer
56 views

Meaning of SA mean in “GFI - SA” electrical panel labeling?

I noticed a couple of the handwritten labels on my electrical panel are listed as "GFI - SA". I am curious as to what the "SA" indication means. Note, there are also a few other "GFI"-marked labels on ...
2
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2answers
78 views

Voltage on the protective earth conductor?

Got a weird situation in my house. Sorry for the horrible "hand drawing" below and also for probably not using the correct terms (i'm not an electrician). Here's one of the multiple circuits in my ...
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2answers
73 views

Does the amp size have to match?

My home has three bathrooms in it and the outlets for all three are combined off one 20 amp breaker in the panel. Do I have to use one of the 20 amp breakers on the transfer switch or can I use one of ...
0
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2answers
50 views

Electrical surges, lights flicker/dim them go back to normal

I live in a mobile home, first issues I've had electrically. I noticed the lights would dim from time to time, a fan that was in the bedroom would run like it was on low even though I put it to the ...
1
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1answer
57 views

Installing a 240V 30 A outlet for EV charging

I would like to install a 240V 30A outlet for EV charging in my deeded parking space in the common basement garage in my condominium building. The electrical closet with all individual unit electric ...
0
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3answers
66 views

15A air compressor blowing 15A breaker

I got a used air compressor rated at 15A (120V). When plugging it in to either of two 15A circuits I have in my basement, it will work for 8-10 minutes, then the breaker will trip. You'd think the ...
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1answer
51 views

Grounding problem

When I ground my panel to an 8ft grounding rod the lights flicker almost like half power kind of thing but when I ground the panel to my water pipes everything works normal what would be causing this ...
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2answers
49 views

15amp breaker for 9 dual outlets?

I tried using my pressure washer in my back patio and it quickly tripped my gfci outlet and I had to reset the breaker. I then noticed that all 4 exterior, 3 garage, and two laundry room outlets were ...
3
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2answers
46 views

How do I relocate a generator inlet box?

From the images above, I have a 30 amp generator inlet that connects to a transfer switch. I’d like to relocate that inlet box to the outside of the house so that I don’t have to run my L14-30 cable ...
2
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2answers
60 views

Do I have space in the main panel for a 60 amp double pole breaker?

Completing a workshop in the garage and I've installed a 60 amp sub panel in it for all the garage circuits. I plan on running 6/3 nmd from the main panel to this sub panel (a run of about 15 feet). ...
1
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0answers
31 views

Only getting 15-16 volts from Furnace R and C

I recently purchased a smart thermostat. Because it needed a common wire and I only had a 3 wire setup, I ran a new thermostat wire to my furnace. However, I now get only 15 volts (inconsistently, ...
1
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2answers
45 views

AIC rating for residential 100A main breaker

I'm having an electrician replace my 2-unit meter main Zinsco panel with a new Siemens WP2211 panel. There will be two 100A breakers for the two units in the complex. The panel lists the following ...
0
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1answer
44 views

DIN Rail Splitter?

We have a DIN rail with multiple terminal blocks on it, used to extend circuits from their original location to a new location a few feet away. This is all fine and proper for the most part. The issue ...
0
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2answers
88 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
151 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 ...
0
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2answers
73 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
176 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 ...
1
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1answer
81 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
86 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
72 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
58 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
115 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
54 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
56 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 ...
1
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1answer
31 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
105 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
126 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 ...
0
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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
29 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
56 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/...
0
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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
55 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 ...
0
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4answers
147 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
57 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
votes
1answer
81 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 ...
0
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3answers
68 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 ...
0
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2answers
65 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
39 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
50 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 ...
0
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2answers
60 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 ...
0
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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
52 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 ...