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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
46 views

Feasibility (and cost) of swapping wires on circuit breaker panel

I'm going to be finishing the basement in my 28 year old house. Currently the entire basement (~1700 sqft) is going through a single 15a breaker, which isn't ideal. There's no room on the existing ...
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2answers
38 views

Installing Tankless Hot Water System - Amp Questions & Using AWG 6 Wire with Current Tank

I'm looking into researching about installing a Hot Water Tankless system. Specifically I want to install the following: Rheem Tankless Water Heater 2.14 GPM 13 kW Self-Modulating Electric Wall ...
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2answers
117 views

Old GE Panel, OK to Keep?

This in an old (1955) GE panel that was formerly the only panel for a house with 3 phase 100A four wire service (yes, three phase). I had the service updated to 200A standard three wire and new main ...
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2answers
111 views

Can I run the wires from a cable into a panel through separate knockouts?

I am trying to add a thick outdoor rated cable (from a hot tub gfci breaker box) to my main panel box. The top of the box has two entry points that are not being used, but they are too small to allow ...
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2answers
1k views

Which 50 amp breaker do I need for my old Eaton panel?

I have an old Eaton panel in my house with a 200amp supply. I need to install a breaker for a 14-50R receptacle for a car charger. The breakers in the panel look different from anything I see in the ...
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4answers
1k views

Diagnosing instant circuit breaker tripping, with nothing connected

I had a previous question regarding an AC, but now that I have disconnected the AC and the problem remains, I want to diagnose this problem a bit more. First step was seeing if this specific breaker ...
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5answers
2k views

Repair drywall and protect wires on back of electrical panel

My electrician had to cut drywall on the back side of a wall that has a new electrical panel mounted. The back side is the kitchen (the panel is facing into the living room). The feeder and a bunch of ...
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1answer
53 views

backup electrical feed to main panel from inverter's GFCI outlet without ground?

I have rigged a 1000watt/120vac inverter to my EV, to use for backup electrical power during short grid outages (the main "traction" battery has 40kwh and the DC-to-DC converter is known to be able to ...
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1answer
56 views

what NEC addresses using GFI breakers to address outlets with no ground

What NEC section addresses the use of GFI breakers to remedy ungrounded outlets
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1answer
57 views

Determining Bus-Bar Rating for PV Installation

I already have a primary PV inverter connected up through a 40A breaker. I'm looking to expand by adding a second PV inverter. To comply with the 2014 NEC 705.12(D)(2) rule I need to know the panel ...
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2answers
71 views

Need help to understand my electric panels and subpanels

I moved into this home few months ago in California (U.S.), and want to understand how much electric load I can use in each room. The house doesn't have HVAC and I am using floor heaters. I would not ...
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0answers
29 views

Adding Refrigerator to Garage Door circuit

I recently had a transfer switch installed for my generator. I'd like to add a basement refrigerator to the same breaker (in my service panel) as the garage door circuit. This would allow the ...
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1answer
66 views

Connecting 240 volt generator to Main Panel

I read previous posts that explained that the Sub Panel has a separate connection for ground and separate for neutral, while the Main Panel does not separate the ground & neutral - this is exactly ...
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0answers
40 views

Whole house surge protector - wiring ground and neutral to same bus bar?

I've bought a whole-house surge protector that I'm installing in my main panel. In the interest of keeping the leads as short as possible, I can put it directly next to the breaker, which would also ...
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1answer
56 views

Lights running without disconnect switch

There is what looks like a disconnect before the meter for the outside lights, but it looks like it missing a switch? How are the lights running and how would we disconnect them for service?
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3answers
57 views

How to test hot tub grounding

I'd like to test if my hot tub was connected to ground. The hot tub is underground and its electrical panel is not easily accessible. I'm trying to figure things out without access to the hot tub's ...
2
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1answer
69 views

Is there a Grounding Electrode that can be buried less than 18"?

A house that is being constructed is being built on ground that is only 18" deep before it hits bedrock. The rebar can't be used as the grounding electrode because there is a vapor barrier below the ...
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2answers
1k views

Electrical service sizing mix up in Mexico

Facts: The national electrical supply company of Mexico called "Comisión Federal de Electricidad" (CFE) oficially instructs users to install: A two pole one trip main interrupt behind the service ...
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2answers
61 views

Splitting Service Equipment Across Two Enclosures

My house has a 200 amp service with a (circa mid 1980s) GE TM2020R Mod1 panel where all 20 spaces are occupied with THQP breakers. In order to provide room for expansion and to allow for GFCI and AFCI ...
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2answers
79 views

Challenger Bus panel

I have a challenger panel with a burned bus and bad breakers. I'm looking to replace them. I called my local shops and they said they don't carry this anymore. Is there a replacement option without ...
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1answer
73 views

Do I need a new circuit breaker?

I have an OLD circuit breaker. I think it's the original one for my house (1950's I think). It's a Pushmatic Electri-Center "Automatic Protection Push Button Control" from Bulldog Electric Products ...
0
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1answer
97 views

Novice Generator Interlock Kit Question

Bear with me. I am preparing for a future blackout. I did some research and am hiring an electrician. For my knowledge, could someone help me understand if i'm incorrect here. I purchased 2 Pulsar ...
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1answer
93 views

Not finished walls in electrical room

The electrical room in the basement of the condo building I live (3 floors + basement, top floor has a mezzanine, 8 units total, in Montreal, Canada) has walls not finished. See photos. There are ...
3
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1answer
48 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 ...
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2answers
174 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 ...
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2answers
119 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 ...
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1answer
71 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 ...
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3answers
386 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 ...
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3answers
741 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 ...
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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
80 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
82 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
59 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
71 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
54 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 ...
1
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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
49 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
66 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). ...
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0answers
48 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, ...
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0answers
46 views

Voltage between neutral and ground

I will need your help with something. I have some strange voltages between the wires in an electrical panel in Uk (see below): L-N = 120V L-G = 240V N-G = 80V The voltage between N-G should be close ...
0
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1answer
56 views

120v on black and white wires

I have been troubleshooting this for some time now. Any help would be great! A friend of mine's wife plugged in a hair dryer and lost power about 2 minutes into it. A few hours later the power was ...
1
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2answers
49 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
47 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 ...
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2answers
94 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
162 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
76 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
181 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
95 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
92 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 ...