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].

151 questions with no upvoted or accepted answers
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52 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?
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242 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 ...
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111 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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55 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 ...
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1k 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 ...
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52 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 ...
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949 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 ...
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83 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 ...
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41 views

I have a ground rod but I have no grounds in the house

My panel is connected to the main water intake jumping the meter and I just installed an 8 foot copper ground rod. Even connecting a new breaker with only one outlet attached to it shows that I have ...
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32 views

Switching to an AFCI breaker, but builder had used a 3 wire/2 breaker setup

I am looking to bring my finished attic to code and I am told I need to replace my existing 2 15A single pole breakers with 2 AFCI breakers. Builder used 12/3 wire for 2 circuits, one going to HVAC ...
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103 views

Can an existing electrical panel be left in place but rotated 1/4 turn (90 degrees)?

Odd as it sounds, the few inches gained by simply rotating an electrical panel in its current location just 1/4 turn during our renovation (so that it faces south instead of west) will allow us to ...
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32 views

200 amp panel with 3 wire service connected to outside disconnect

If the main panel is fed with a 3 wire service and a generator transfer switch with a service disconnect was added - would it be considered a sub panel?
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41 views

what size wire for 100 amp sub panel

Im doing an addition on my raised ranch home, two floor, first is bedroom with small bathroom, second is family room, diagonal to garage. I need to install four recessed lights and a center fan, four ...
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519 views

Flickering started: All 4 LED bulbs on dimmer switch flicker in unison

All 4 LED Recessed lights on dimmer switch #1 just started flickering in sync (sometimes) starting 2 days ago. 4 years with no problem 4 other LED's on a DIFFERENT dimmer switch #2 (but same circuit) ...
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32 views

Breaker keeps tripping

Replaced a split circuit switch (Dishwasher/Disposal). breaker comes on when switched but trips when turning either appliance on. Tab is removed, all wires connected properly, but breaker still trips
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43 views

Main House Breaker Tripping

Have 100amp pushmatic breaker box. Main has tripped more than twice. Im thinking overload or ? People that used to live here stole/cut out wire. Owner done what he could. Any thoughts would be ...
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70 views

Can I run 2x's 200 amp services off of my 200 amp meter?

I have a 200 amp service in my house from the pole that is live. My polebarn is about 150 ft. Away from the pole and is not live. I have another 200 amp service for my polebarn, and I have the extra ...
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82 views

20 year old GenTran Switch Totally Dead

Just picked up a new generator after 23 years using the same one. Had to change over the three prong 220v plug in with a 220v twist plug. Been over a year since using backup power. Plugged in the ...
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60 views

Why is my main breaker popping

So I have a 100A sub panel Box in my shop with its own 100A main breaker at the top of the box and has 5 240v 20A breakers and All together I'm only using 77A worth of equipment if all on at the same ...
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37 views

Adding dedicate circuit to old panel

I want to add a dedicated circuit for a wall heater in the bathroom. Attached is a picture of my power panel. How do I tell if I have enough room to add to my existing panel? Housing is currently knob ...
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371 views

Can I install a NEMA 14-30 outlet to 100 amp panel

I received a pricey estimate for a NEMA 14-50 installation because I apparently need an automatic transfer switch. Now I think I will go with a NEMA 14-30 DIY install instead. I am just wondering if ...
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36 views

How do I diagnose light dimmers that have become erratic after installation?

I used to have light dimmers in my house that worked just fine; but after an electrical panel upgrade they became erratic and/or noisy. All the dimmers are powering LEDs which claim to be dimmable ...
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707 views

Is it code-legal to backfeed both legs of a 240V panel from a 120V portable generator?

My question is very similar to this one (Can I plug a 120 volt generator into a 240 transfer switch with a modified cord/connector?), but I'd like to know whether DDS's answer is code-legal under the ...
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129 views

Shared Neutral for Hot and Line Side of AFCI Receptacle

Good Day I am planning a MWBC. At the start of this circuit will be an AFCI Receptacle in a Hallway. This will then Branch to Hallway Lights in one direction, and Dimmer Lights & a second ...
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61 views

Service Panel and New Underground Conduit

So im remodeling and found out my electrical conduit that carries my lines from the my garage was rotted out. I had exposed electrical wires, still wrapped in sleeves, but exposed buried in the dirt. ...
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252 views

Difference between E-Trip circuit breaker and Mechanical Trip breaker

Trying to order a 19" distribution breaker panel. All small loads, (3A..7A) but I am being asked do I want Mechanical trip or E-Trip bullet breakers. The description on their quotes say Electro-...
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36 views

EV 240V 40amp breaker

if i have a current 100 amp service, will the service be able to handle the new 40 amp breaker for the EV, there are 5 other 20 amp existing breakers in the same service
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42 views

How to connect secondary distribution panels in series? 3 Phase Germany

Mine is a 3-phase German household. Main panel serves the kitchen and a 5 conductor 10 mm^2 with each phase fused 16A (w/ Hager FS) to the secondary panel upstairs. This services 6 rooms, a bath, ...
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81 views

Can turning off the breaker box damage it

I was removing a Jacuzzi and the homeowner turned off all the breakers for the house (even though I only needed one turned off). I don't know whether she flipped the master switch or the subsidiary ...
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233 views

Using Terminal Bars to Splice Service Entry Wires

Based on the second diagram in this question on feeding two subpanels from a single main breaker panel, I would like to know the best way to split the single feeder cable to two feeder cables for each ...
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52 views

Some of our electonics are being fried

Would having the ground from a 277/480 panel hooked up to the ground of a 120/240 panel have the potential of causing problems, such as fried electronics?
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137 views

Run additional breaker to detached garage

I have a detached garage about 40' from my house. There is already an electrical panel out there but I run my business out there and use a decent amount of electricity. There is only one 120 breaker ...
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202 views

What options are available for connecting new shed to power?

I am about to finish building a large shed (small garage) in Wisconsin and I'm considering my options for running power to it. The power company is WE Energies. The shed is pretty close to a power ...
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1k views

AFCI Circuit Breaker trips after turn on any light on different circuit

The last week an electrical service person came to update the circuit breakers from regular to AFCI. But they could not find the root of the problem and they will come again in one week but I wanted ...
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93 views

Electric Panel / Breaker Size for Nano Brewery 2bbl Brewing Kettle

I have a 2bbl (make 60 gallons of beer) Brewing Kettle in my Nano Brewery. It uses 2 4500w and 1 3000w Water Heater Elements to bring the wort to a boil. Once to wort reaches boiling the 2 4500w ...
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1answer
5k views

400 Amp service to 2-200-Amp Sub-panels

I used to be an electrician many years ago (trained by the USCG, worked commercial/residential at EOE). Is been about 13 years since I wired up a service panel. I am building a new home and need a ...
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1answer
861 views

Installing new 125 amp panel in garage

I am installing a 125 amp panel in my garage. We have 360 amp service to the meter, split into two, 200 amp on for the house and the other for the garage. My question is what qauge/type cable do I ...
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1answer
119 views

removing a circuit from a circuit breaker

I have one circuit breaker connected to three different items, a garage door opener, a water conditioner, and an alarm system. As I am not using the alarm system I want to remove it from the circuit ...
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56 views

Wire questions for panel, sub-panel and electric vehicle charging

I live in an apartment in a 60-apartment building. Each apartment has a 125 amp sub-panel in it (I'm assuming it's a sub-panel). I have 3 slots open on my panel. I wanted to install a double-pole ...
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2answers
702 views

Can an AC and a dryer go on the same breaker?

I have a sub panel breaker box that has a 30 amp breaker in it right now with a dryer rated at 20.7 amps connected. I want to attach an air condition unit to this sub panel by replacing the current 30 ...
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2answers
894 views

What size wire for 180' run to shed?

My 100A main breaker panel is full. I was planning to have it ran off of the meter with 60A I have #6 thhn wire to run in conduit 180' to shed. I only need a 20 amp circuit and 15 amp circuit in shed.
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1answer
267 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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2answers
164 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 ...
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1answer
875 views

Installing CAFI Plug on Neutral Circuit breakers

The circuit breaker has only 2 places to hold wires. There are 3 wires. These are the newest versions with no pig tail. Do I need to wire it to the neutral bar? I thought the idea of this new design ...
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3answers
128 views

Electric boiler and dryer same breaker?

I'm adding an electric boiler 240 volt. Can I use the same breaker from the dryer? I don't have room to add another breaker on my electric panel.
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2answers
124 views

Watt-meter showing half wattage

Output power from the generator is showing half of the actual wattage. I checked the terminals and found out that two current wires are going from the main breaker to the switchboard, c1, and c3. ...
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1answer
140 views

Vent hood throwing bedroom breaker

Let me start by saying that electrical is not my strongest area. With that being said, I'm experiencing an issue where the breaker for two of my bedrooms is thrown approximately a minute or two after ...
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1answer
273 views

Does this panel provide three-phase power or single-phase?

I am looking to lease a warehouse and am interested in the type of power it has. I looked at the disconnect for the electrical panel to figure this out, but it has left me a bit confused. Usually ...
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1answer
815 views

How to add additional kitchen circuits to fuse panel

I am redesigning my kitchen. I have a log home. I need to put a dishwasher and 4 electrical outlets all in the two walls of new counters. I need to know what fuse for the fuse panel to use for this ...
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1answer
173 views

Bed bugs to be killed with 15 KW (70 amp) saunas and 6 box fans…What wire to use?

I bought a rental house with bed bugs. I want to hook up 2x 15kw saunas and 6 box fans (1100 CFM) to move the hot air. The saunas will heat the house up to 120 F and hold it at that temp for at ...