For questions generally relating to safety devices used to automatically stop the flow of electric current in the event of a fault condition.

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1
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1answer
31 views

Can I have a clothes dryer and room heater on one circuit?

I currently have a 100 amp panel (square D) with no free slots. I'm looking at adding an electric heater (1000 watts, 240V) to the washroom. I'm wondering if I can replace the 30 amp breaker for the ...
1
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3answers
99 views

Does this wiring meet the NEC standards?

An inspector took the following photograph of a residential home’s circuit breaker panel. White wires are connected to the neutral bar. Black wires are connected to the circuit breakers in the ...
0
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0answers
18 views

tandem 20 amp breaker keeps tripping

one of the tandem 20 amp breakers for bedroom/bath (6 duplex receptacles, 240 watt bathroom light with 60 watt bulb/bath exhaust fan) keeps tripping. i've replaced the breaker several times. the only ...
-3
votes
0answers
26 views

domestic installation [closed]

19 lighting points of which ten are rated at 100 watt each while two should be rated at 1500 watt and the rest to be rated at 60 watt each.8 socket outlet each to be rated at 13 amp and 3 industrial ...
0
votes
0answers
42 views

How can turning on or off a circuit beaker affect a ground on a different circuit?

I am addressing electrical issues in my parents house and came across this situation..Circuit breaker "A" controls the downstairs bedroom outlets. Circuit breaker "B" controls the upstairs bedroom ...
0
votes
0answers
29 views

Reading voltage on neutral line

Ok, here goes, I'll try to be coherent: Residential house wiring. This is my girlfriends rental property and both her brother and father have done some electrical work on the house (so I have the ...
0
votes
0answers
24 views

A/C board is bad…is this from previous poor repair?

Back in May our A/C and heat would not kick on. Tech came out and replaced the A/C fuse box and everything was fine. Last week the coils froze up (has never happened before) and tech said the board ...
0
votes
0answers
17 views

Where can i find a replacement for an out of date main circuit breaker

The main circuit breaker in my parents house blew and needs to be replaced. Our electrician is having trouble finding a replacement as the model is no longer carried in the regular stores. Here is a ...
0
votes
1answer
15 views

My light switch trips the breaker when its placed into the box

I have a box that contains 3 light switches. I replaced the old switches with new ones simply for cosmetic reasons. The old panel worked perfectly fine. When I install the new switches everything ...
1
vote
1answer
40 views

Wire two 14-50 outlets to 50 amp breaker

Was wondering can I add two 14-50 outlets to one 50 amp breaker using 6/3 wire and connecting with wire nuts? Also, recommend PVC or liquid tight flex conduit? Will be in the garage. I want to add ...
0
votes
1answer
30 views

Shared neutral with two separate breakers

As I continue to make sense of the wiring in home, I have come across some shared neutral configurations. In one, I find two breakers that have been connected to one NM-3 line i.e. black and red are ...
3
votes
1answer
61 views

After a minute running, dryer trips main breaker outside the house, but no internal breakers

I recently solved (sort of?) an issue regarding my washer & dryer not getting power. I consider that issue solved, but now I have a new one, possibly what caused the problem before. Now that I ...
1
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0answers
30 views

Ceiling light wire/hook up

Hello I hooked up a new ceiling light, There are 3 different color wires. Red,Black,and white, 2 of each color wire. I wired each color wire to there self and then wired the light wires (copper color) ...
0
votes
2answers
38 views

Where can I find the trip curve for this circuit breaker?

I have a Westinghouse Cat. No. B10 2020C Type 1 Indoor Enclosure, and I'd like to find the trip curve for the breakers. Any idea where I can find this graph?
1
vote
1answer
116 views

Powerboard overload switch melted

We came home last night to find one of our powerboards (outlet strips) had melted/caught fire. Pretty scary! Now I'm not 100% sure on what happened but I believe that there was an oil column ...
1
vote
3answers
342 views

Breaker lets more Amps then its max

The last few day's I had the main breaker triped a few times, I checked the amps with a multimeter and when the central air conditioner turns on it draws 150! amps for 1 second and then goes down to ...
3
votes
4answers
2k views

How to predict when the electrical infrastructure on my 1950s rental is going throw a breaker?

I live in an old house; it has old electrical infrastructure. Last night it was really hot, and we were running an external dishwasher on the same circuit as the TV and a fan and a ceiling fan. Only ...
0
votes
3answers
62 views

What breaker configuration should I use for a 240v shed circuit?

A friend wants 240 and 120 in his shed. The beaker panel is in the garage about 40 feet away. It was suggested to run 4 individual wires--two for the 240 and one for ground and one for neutral. What ...
0
votes
0answers
26 views

Random Outages on only 5 of my breakers. Open/ Bad Neutral?

Every morning when dawn comes around (5:30 - 6:30 am) the power on 5 breakers in my house seem to kick on and off with power. The breakers are my water heater (electrical/ no gas), my a/c, my kitchen ...
0
votes
2answers
62 views

GFCI breaker has no power?

When I place GFCI breaker into panel and turn the power on, there is no power that I can measure on the hot leg. I measure it between white wire (neutral) and the hot leg. Yes, the pigtail white wire ...
3
votes
1answer
306 views

Is a warm breaker normal?

I have 2 15 Amp breakers both of them with a load of about 12Amps and they are warm. Is this normal that such a load should warm up the breaker?
2
votes
2answers
57 views

Difference between $50 and $175 breaker

I have a Zinsko outdoor panel with a 100 amp breaker for the garage and 125 amp breaker for the cottage. The breakers are bad, so checked into replacing them. It seems a Zinco or Connecticut electric ...
0
votes
3answers
76 views

4A circuit breaker for a refrigerator?

I live in Pakistan and we have no electric panel or separate wires for different devices. I am going to rewire my house but before that I wanted to secure the refrigerator wire. I've been reading ...
2
votes
2answers
26 views

Multi-circuit transients without breaker trip

I have had some transient problems with the circuits in my house. About half of my circuits to several locations have a tendency to cause lights in the affected circuits (yes multiple circuits) to go ...
0
votes
1answer
46 views

Replacing a Challenger breaker with an after-market breaker

I have a Challenger panel board and one of my breakers is no good. When I went to buy a new one they don't carry them anymore. They said they only carry the after-market ones. So I got that one, but ...
1
vote
2answers
122 views

Wire a 30A/15A/30A fuse box to a 4 wire 120V/240V oven

This is for a Canadian Oven being installed in Canada. Used oven came with this box. The manual is not available. The incoming line from both oven and junction are Red/White/Black/Ground. I ...
3
votes
2answers
46 views

How should I add an AFCI to this panel?

I'd like to add an AFCI to the middle circuit here. But that circuit shares a tandem breaker with the circuit above it, so I don't know if there are any subtleties of this setup that I don't ...
0
votes
2answers
32 views

One specific coil on stove trips circuit breaker

I recently purchased a home with appliances included. One of the appliances is an stove/oven. We cleaned the range before our first use. The day after the clean, we used the oven and 3 of the 4 ...
1
vote
2answers
97 views

Using a 100A main breaker in a 200A panel

So I purchased a 200A Siemens panel to replace the old 100A sub panel in my house. The main panel is in the garage and is also 200A Siemens and has a branch circuit to the house of 100A. I bought a ...
5
votes
3answers
274 views

Rewiring house and replacing breaker panel. Wiring layout and breaker selections

I'm doing a major kitchen and bathroom remodel project and decided the old federal pacific breaker box needs to be replaced. Since I'll be rewiring the bath and kitchen, I figured it makes sense to ...
0
votes
1answer
52 views

light switch trips breakers at random, but never itself

I recently installed a monorail lighting kit in my home office; I wanted another spot-light which meant I need to swap out the included transformer to something that would allow more than 100 watts. ...
1
vote
1answer
92 views

Circuit breaker panel voltage drops when a load is added

I have a 240 volt 225 amp sub-panel. Both lines attached to the bus bar have 120v. When I turn on any breaker connected to one of the bus bars, the voltage drops to 80-108v. If I remove the load and ...
1
vote
1answer
28 views

While replacing a GFCI I find it has 2 circuits running into it. New GFCI trips

House sale, inspector pointed out the GFCI at the front of my garage was failing his tester. Trip light was always on but it still fed power. Skip to the end if this is too wordy, but I wanted to ...
2
votes
1answer
88 views

It it safe to have a 15 amp GFCI outlet on a 50 amp GFCI breaker?

My friend just got rid of her hot tub. The person that took it put an outlet where the tub was. He put in a 15 amp GFCI at the outlet but left the 50 amp GFCI breaker in the panel box. Is this ...
1
vote
1answer
49 views

Noisy breaker, whats the reason

One breaker started making a noise every time after i put it on, sometimes its immediately after switching it to on and sometimes it starts after a few seconds, and after a while the noise gets lower ...
1
vote
1answer
60 views

How can I replace an I-T-E panelboard? [closed]

I have an old 225 Amp 30 space commercial flush mount sub-panel in my home with bolt on breakers that has worked for years. Now, there's 120v on one bus and 0 volts on the other bus. When I remove ...
0
votes
1answer
71 views

Dead circuits with breakers across from each other

I have 4 dead circuits which were intermittent off/on at first- now dead. The 20 amp dual tandem breakers are across from each other in the breaker box. The breakers/circuits above and below the ...
4
votes
3answers
488 views

What should I do if the AFCI breaker neutral pigtail is too short?

I am wiring a house that I built, and code says I need an AFCI for the bedroom circuit. The panel that I will be installing this AFCI breaker in is a subpanel, so my ground/neutrals are on 2 ...
2
votes
1answer
59 views

Maximum breaker on NMD7 8/3 wire?

My mother in law recently replaced her 4 burner Frigidaire range and is often popping her breaker when she is cooking for a large party - ie 4 burners going and oven. I checked the specs for the ...
4
votes
3answers
136 views

Is one circuit connected to two breakers safe?

We redid our bathrooms and had an electrician come in and put in new wiring for outlets, heater/fan/lights and heated floors. He had to replace the electrical panel, because the house is older (1956) ...
0
votes
3answers
112 views

How can this panel pull 100A without any breakers tripping?

I have a three phase panel fed from a three phase 100A breaker on another panel. I found the 100A breaker tripped on the main panel, but none of the breakers in this panel were tripped. My ...
3
votes
1answer
48 views

Can manually throwing the dryer circuit breaker cause it to burn out?

What can cause the dryer circuit breaker to heat up to the point that the plastic at the connection melts? Can manually throwing the breaker cause this? My wife has suffered through two house fires ...
5
votes
5answers
2k views

Remote Access to Circuit Breaker

Every once in a while I have a breaker trip when I'm not home. I have a series of computers running cpu intensive programs and sometimes alt coins which can also be hogs :-). At times there is a huge ...
1
vote
1answer
97 views

How many electrical circuits? [closed]

Considering the following appliances, how many separate circuits should I consider for an apartment with 1 bedroom, 1 living room, 1 kitchen, 1 bathroom, and 1 access hallway? electrical oven ...
2
votes
1answer
85 views

Device keeps tripping AFCI device

I have a BedJet device that I run at night that keeps tripping the ARC-fault breaker in my bedroom after about 30 minutes of running nearly 70% of time (other times it works just fine). I have tried ...
6
votes
1answer
142 views

I shorted a circuit, reset a breaker, now much of the house electricity only works if I turn on a wall AC unit

I'm wondering if any of you could guess what might have happened. I live in an older 60s ranch with an older electrical system. I was cutting some shrubs this morning and hit a 3 strand wire that was ...
0
votes
1answer
59 views

How to determine if a circuit breaker has GFCI

I recently discovered none of the grounds in the three-prong outlets in my house are connected to anything. AFAICT the only way this is allowed without GFCI outlets is to have GFCI circuit breakers ...
0
votes
2answers
34 views

Panel switched back on fried garage door opener (need surge protector)

I shut off the power to this entire house, from inside, the larger main switch at the top of the panel. 12 hours later we started hearing the garage door opener circuit board make a noise like a relay ...
0
votes
3answers
167 views

Why is my air compressor drawing too many amps?

I have an old air compressor (1970s/1980s vintage) that has recently started tripping the circuit breaker that it is on. I hooked up a clamp meter and found that when the compressor motor is running ...
0
votes
2answers
59 views

Duplex Circuit Breaker Still Providing Power

I'm in the process of installing a new dishwasher. I uninstalled the old one tonight in anticipation of the new one arriving tomorrow. I got everything unhooked and left the electric for last. I ...