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
30 views

Why are adjacent breakers for unrelated circuits ganged?

I'm looking at electric panels in some newer residences and seeing something confusing: Circuit breakers that are adjacent to each other, but that cover unrelated circuits, are ganged, as shown below. ...
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1answer
20 views

Can’t find breaker for AC unit

I have 2 AC units and I’m installing Ecobee thermostats. The upstairs unit is on the main panel and I was able to turn it off and install the thermostat. I turned off the main breaker and the ...
2
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2answers
100 views

Are my circuits properly grounded?

I have a Cutler Hammer CH30e panel. On the right side on the panel there is a neutral buss with the a #6 cu ground and a 1/0 Al THW neutral. The buss is also connected to the panel What I find very ...
2
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1answer
33 views

Is my main feed the correct size for my panel?

I have a Cutler Hammer CH30E 150 Amp panel. It is fed from a 150 main disconnect mounted on the wall next to my meter can. The wire sizes are 2#2/0 AL THW & #1/0 AL THW NEUT & #6 CU GND buried ...
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3answers
88 views

capacity of my electric panel

I see a 100 Amp breaker in the mains, which means my electric panel is 100 Amps. I see may arrays of circuit breakers on it, as many as 18. When I add the total amps on them, it adds upto 375 Amps. ...
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1answer
49 views

size sub panel needed for mini house

I have 400 amp service in a 3800 square-foot home. I ran 100 amp to a garage. I want to build a mini-home that will require approximately 130amps in appliances, etc. What size sub-panel do I need? ...
2
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3answers
68 views

Main panel mounted directly to cinderblock wall

My main electrical panel is mounted directly to my basement wall, and I noticed last night while I had it open that it is starting to show signs of rust/oxidation around the mounting screws. What is ...
1
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2answers
55 views

How to compute breaker size for electric Stove + Oven?

I currently have electric appliance, and I want to replace them with newer units. These are the ratings of newer units I am considering: Induction Stove VICU53616BST - Maximum Amp Usage 240V - 48....
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1answer
58 views

My 100 amp box/panel seems to have lost the third leg

One leg reads 120 and the other power reads 16volts while the neutral reads zero. I'm not sure what the problem is.
13
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4answers
3k views

Are these pigtails inside the panel and outside a junction box allowed?

I am concerned about a newer electrical panel's installation, where one of the older load wires, at the main electrical panel, appear to be shorter in length, appear not reaching the desired circuit ...
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3answers
88 views

How to stop current originating from common ground wire?

A building has all the apartments' electric panels connected to a common ground wire. Theoretical situation: 1. one of the building's electric panels has its differential circuit breaker broken 2. it ...
2
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1answer
45 views

Romex through attic to exterior panel

We are remodeling our kitchen and getting quotes for updating the electrical. We have received 2 quotes so far. The service panel is on the exterior of the house opposite the location of the kitchen. ...
3
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3answers
148 views

Wrong installation of tandem breaker for 240V burn water tank

My contractor installed water tank https://www.homedepot.com/p/Rheem-Performance-50-Gal-Tall-6-Year-4500-4500-Watt-Elements-Electric-Tank-Water-Heater-XE50T06ST45U1/205810674 and it ran for a short ...
7
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2answers
274 views

Are these breakers suitable for a GE panel?

I have three types of non-GE breakers on my GE panel. They are from the previous owner and possibly many many years old. I think they are Murray and Square D. Are these breakers that need to be ...
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3answers
80 views

Is it legal and safe to have an electrical breaker panel installed outside of an external wall of a single family home in Ontario Canada?

Searched multiple sites but could not find the answer to the question if it is legal and safe to have an electrical breaker panel installed outside of an external wall of a single family home in ...
4
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1answer
141 views

Confirming the set-up and wiring of 60AMP subpanel

I am installing a 60 AMP sub-panel (GE TLM2412CCUP) and want to confirm the wiring and set-up before I set everything up. The pictures show the main panel (currently 60AMP as well but will be updated ...
1
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1answer
59 views

Delay Mains power after a blackout

My parents live in a country with very unreliable electricity. Something that happens very frequently is mains power will go out and when it comes back it will flicker for a couple of minutes. It has ...
24
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7answers
3k views

How can I add an ammeter and/or voltmeter to my home breaker panel?

In my professional life, I work in datacenters and all of our PDUs have ammeter displays on them. Of course they do: we always want to know how many amps a PDU is using. But in my house, nobody has ...
19
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6answers
4k views

Weird Power Outage in Certain Rooms- Condominium

Half of the Condo I rent is losing power sporadically, sometimes for minutes other times for hours. We have power loss to our kitchen lights, microwave, outlet above dishwasher, the dishwasher, entire ...
1
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2answers
95 views

Should I upgrade my electrical panel during a solar installation

I have a moderately sized electrical panel and over the course of the last 8 years have done a full house rewire, and installed heat pumps (and when I say 'I did X', I mean I wrote the check to the ...
0
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1answer
28 views

Sub Panel in detached 10x10 bldg(welding shed)

Main bldg with 200a service. Detached 10x10 welding shed 40' away. Ran #6 (hot, hot, neutral, and #8 ground) in conduit from main bldg to shed for 60a service. Will have 60a breaker in main bldg panel ...
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3answers
133 views

Converting Nema 10-50 receptacle for car charging

I might be buying an electric car soon and i was wondering if I could use my current nema 10-50 dryer plug for my 240v evse? The plug is not used since I have a gas dryer. The receptacle was ...
37
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1answer
12k views

What on earth is this small wall-mounted computer?

I live in a rented apartment, and there is this little plastic box on the wall that I had been ignoring. Here is what it looks like: There are no markings or holes on the casing. I got curious and ...
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0answers
40 views

My humidifier sets off the breaker?

I live in an apartment with a flatmate, in Ontario, Canada. I have a Honeywell Warm Mist Top Fill Humidifier (HWM-340BC from Canadian Tire, I imagine it should be akin to HWM-340B here: https://www....
3
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2answers
89 views

What kind of service panel to use when the enemy is condensate, not rain?

I have looked at indoor and outdoor panels. However, the design of the outdoor panel seems to be geared to excluding rain, falling from top to bottom or a little sideways. Actually, my location can'...
2
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0answers
64 views

Adding neutral lug to older load center

In the process of installing a remote subpanel from my older backfed load center. The neutral/ground bar is attached to the service entrance via the screw midway, and the ground is at the base of the ...
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0answers
42 views

Federal pacific breaker panel problems

I have a FPB panel in my home. I'm losing power in different areas of home but no breakers have tripped. Now I have a tracing nightmare. Also what is the function of the adjusting screw?
3
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3answers
104 views

Insulation from electric meter to panel is rotting

The electric line in from my meter to my panel is rotting, or rather the insulation is. See this picture (below). Is there some product I can purchase to temporarily wrap it until I can get it ...
0
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0answers
30 views

Front Garage Lights no power

I'm a new to doing home improvement stuff and I've been doing okay electrical stuff for the house so far but today I ran into an issue out of my skillset while wiring up the front lights on the ...
7
votes
4answers
3k views

Circuit breaker door shocked me. Static?

I was switching through breakers to isolate outlets. I had the panel door open, stepped away, and when I walked back to touch the panel's DOOR, I got a static-like shock on my finger. I was wearing ...
3
votes
2answers
107 views

Is there any issue with the neutral and ground being connected in this panel?

The picture below shows the electrical panel in a single-family detached home that my wife and I are in the process of purchasing. The home inspector flagged an issue here with the neutral and ground ...
1
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3answers
108 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 ...
1
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2answers
45 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 ...
3
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2answers
131 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 ...
2
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2answers
122 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 ...
6
votes
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 ...
6
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4answers
2k 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 ...
5
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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 ...
1
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1answer
60 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 ...
0
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1answer
59 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
1
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1answer
61 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 ...
1
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2answers
111 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 ...
0
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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 ...
2
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1answer
76 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 ...
0
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0answers
44 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 ...
1
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1answer
59 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?
0
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3answers
63 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
votes
1answer
73 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 ...
6
votes
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 ...
1
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2answers
68 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 ...