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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1answer
16 views

circuit breaker trips

I have a breaker that keeps tripping even when no load is on it. I have already replaced the breaker with new, replaced a ground fault outlet and a dimmer switch ( all on circuit), and same thing ...
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0answers
7 views

Eubanks 9 SEER air conditioning max circuit breaker size

Can a 50 amp breaker be used with a Eubanks 9 SEER air conditioning unit. We cannot read the plaque information. I bought the property and that is what is currently installed. It's an older unit ...
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2answers
204 views

Identify type of circuit breaker

My house came with a main panel that supports this type of circuit breaker. However, I am unable to find that type at the store and the breaker doesn't say what type it is. I thought it might be ...
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2answers
39 views

UPS to bypass tripping a fuse?

I have an apartment setup right now where one fuse has a fair amount of load on it. (Fridge, Microwave, PC). Rarely, when these are all used in conjunction, the fuse trips and I have to turn it back ...
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1answer
33 views

How to check breaker compatibility?

This is a follow up to my previous question. Thanks to the advice there, I am planning to replace my existing double-pole breaker with a quadruplex breaker. How do I determine that my panel can ...
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4answers
49 views

Which breaker should trip with a ground fault with a subpanel?

I am installing a subpanel in an outbuilding and understand that I need to use a four wire feed and keep the ground separate from the neutral at the subpanel. I know that is code, but I like to ...
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2answers
76 views

What type of damage can power surges do?

I've lived in this apartment for a couple of years and electricity have always been bad (a demand in power from a device systematically causes others to fade off). I know that a power surge can cause ...
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3answers
75 views

Why are lights on 15 amp circuits and receptacles on 20 amp?

I'm wondering about the logic behind 15 amp vs 20 amp. Why isn't everything 20 amp if it is considered safe? If a light circuit shorts, what difference does it make it if trips at 15amp vs 20 amp?
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4answers
90 views

GFCI and Refrigerator and Circuit Breaker

We have a new home and a new refrigerator. The refrigerator is plugged into a standard outlet and on the same circuit is one GFCI. While using a hand mixer on the GFCI outlet the circuit breaker - ...
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1answer
38 views

Computer makes USB unplugged noise when I run the microwave/heater

Not sure if this is the correct place to ask, but my computer, heater, and microwave are all on the same socket. I have had times when if I run the microwave, the fuse blows. But just curious, if I ...
2
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1answer
54 views

How to wire ground when the sub-panel is Plug-On Neutral

I need to install a sub-panel in my home. Both the main panel and the sub panel are in the same building. I purchased a Square D Homeline Indoor Plug-On Neutral panel (Model # HOM2040M100PCVP) for ...
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0answers
38 views

Tankless water heater - Electric issue

I have a AuqaPower Tankless water heater I installed myself 2 years ago. I used the old wire from old (tank) water heater and I ran a new wire for the 2nd place. It has worked great for 2 years and ...
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5answers
94 views

Need another 240v breaker

I bought a device called Sense to monitor home electrical usage that is installed in your electrical panel. The device needs to be connected to a 240v breaker like this: The problem is that I only ...
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3answers
79 views

using two oven in one outlet

I have two ovens. One is 20 amp at 240 V and Second is 30 amp at 240V. And I have one 240 V 50 amp outlet hook up to one circuit. Would this be sufficient enough to run two ovens without ...
2
votes
1answer
110 views

How do I read the usage information my electrical meter sends to my power company?

I would like to keep an eye on what information my power meter sends to my electric company. Is there a way to use, for example, powerline networking to read what usage statistics the power meter ...
0
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1answer
58 views

How could other breakers have been switched off when one was tripped by a short?

is it possible if one breaker trips, the rest (or some) of the other breakers in the panel will also trip at the same time? we had put in a separate breaker for the bedrooms, once we connected this ...
3
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2answers
77 views

Add circuit off main disconnect or sub-panel required?

I have an outside main disconnect of 200 amp and a inside main panel in the garage. The disconnect panel outside also has 8 or 10 breaker slots in it, four occupied with double breakers for ...
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1answer
38 views

Thermal protection switch replacement in recessed incandescent can lights

I find very little discussion of this issue on the net. My son has a Nutone Scovil 60 watt max incandescent recessed can light, damp location rated, in a shower with a high ceiling. Its thermal ...
0
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1answer
14 views

Why did my RCD trip when I was working on my de-energised lighting ring?

I'm replacing a light in my hallway. Before starting, I turned the light on, turned off the lighting-ring breaker, confirmed the light went out, and then turned off the light-switch for good measure. ...
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1answer
68 views

Why does my greatroom have a GFI breaker on the circuit?

We moved into a condo in 2012 and have had issues on one of the circuits. The circuit serves the outlets in our great room and sun room. Initially, we would trip the breaker when using the vacuum ...
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2answers
73 views

Can I install this array of circuit breakers in my sub-panel?

I have a 30 amp breaker in my main panel, with 12/3 wire ran about 100 ft. To my sub panel in my shed. I'm wondering if I can put a 20 amp breaker for my outlets and a 15 amp breaker for my light in ...
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3answers
61 views

How to find the circuit breaker that is connected with my outdoor outlet

I have one outdoor outlet where there is no power coming in and I and unable to determine which circuit breaker is attached to restore the power
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3answers
39 views

What breaker size for box containing two GFCI circuits?

What should the main panel breaker size be to control a 60amp GFCI for a hot tub and a 15amp GFCI outlet. The gfci's are mounted in a box that will be wired to the main panel.
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1answer
37 views

Protecting electronics from electrical surges - plugs with fuses

i was just wondering why the UK 3 pin plug has a fuse ? in South Africa the the Grid is significantly more volatile and lighting strikes abundant ( in the area i live in anyway) i have moved here ...
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4answers
106 views

Why would a central vacuum breaker trip once every time I used it?

This will be a hard one to find out. I have a central vacuum Drain Vac 2G20028-c , 12.5 amp at 120 volts. It has a mini 15 amp breaker on the unit. The power going to the vacuum is on a normal square ...
4
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3answers
258 views

What does “Split” label mean on circuit breaker panel?

I'm attempting to map out our home electrical breaker panel. The labels written by the electrician 20+ years ago aren't super helpful, so I've having a go making things a bit clearer. I have ...
2
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1answer
55 views

200 amp panel box with some circuits not working

200 amp breaker box in a mobile home. Power just suddenly goes out on all but two breakers/circuits. Each functional circuit is on opposite sides of the panel left side is one breaker down the right ...
3
votes
2answers
127 views

what steps to take after removing a cable from a breaker box?

While building some shelves in my basement, I noticed an electrical cable than ran along a joist and dead-ended. I tested it and discovered it didn't have power. As the dead-end is not particularly ...
2
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2answers
79 views

Can earthing of a building degrade over time

The building is almost 12 years old. We didn't have this problem before. But in this last 2-3 days some residents complained they have experienced shock coming form the pipeline of bathroom even after ...
3
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4answers
253 views

Why is the coiled white wire on a GFCI circuit breaker smaller than the branch circuit neutral?

I just recently installed a 50A two pole GFCI circuit breaker that was part of a 240VAC spa panel. For 50A I was using 6 AWG wires. When connecting up this type breaker you connect the two poles of ...
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2answers
29 views

New service continuity

This is a new 200 amp main breaker panel service and with no service drop yet. With main breaker off and with all circuits off I show continuity between neutral and the screw on the breaker when the ...
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1answer
53 views

Whirlpool washing machine won't start, need help replacing fuse

My Whirlpool washing machine died today. The control panel lights are unresponsive, so it looks like there's a problem with its electricals. The socket works, and the troubleshooting manual mentions ...
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1answer
34 views

60 amp detached shop able to run 50 amp hot tub? [duplicate]

my house main panel is 200 amp, the shops panel is 60 amp. My new tub is closest to my shop but wasn't sure it would cause my shop to trip with the tub on its 50 amp gfci circuit? I was going to run ...
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2answers
44 views

my 220v circuit breakers show a voltage but dont seem to be able to drive a load. why?

im racking my brain trying to get my 220v electric cooktop to work. ALL 4 burners do not operate. i read 220v at all the proper places on the switches etc but when i turn a burner on... the voltage ...
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3answers
125 views

Is this true about circuit breakers being out of phase in a house?

I just read this on another message board: If you know which breaker each outlet is on, it's easy. Breakers that are directly adjacent to each other (above/below or left/right) are on ...
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3answers
51 views

Apartment Circuit breaker flips randomly

I'm not sure how to diagnose or fix this issue. I have seen it happen when nothing is on, when a few things are on, and when the heater is on. It does not appear to matter what the electrical ...
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2answers
71 views

NEC Breaker Selection for Motor Loads

In the case of motor loads connected to a long branch circuit, why does NEC Table 430.52 limit selection of an over current protection device (OCPD) to a smaller size than the branch conductor will ...
0
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1answer
48 views

How many amps can this breakers box provide?

I bought a house from the early 80s and I'm trying to figure out how much amps I can use safely, if it is possible to add air conditioning on the current electric system, and in general if the current ...
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1answer
43 views

Wire size of unmarked wires

Can anyone guess the size of these wires? They are not marked.
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2answers
38 views

Wiring breakers

I left extra wire in the box in case I needed to move to another breaker do I have to strip the entire length of the orange wire or can I just strip parts of it?
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2answers
55 views

Will powerline networking work in my home?

I'm thinking of starting to use powerline networking for my pc, but I heard that if the outlet near my modem and the outlet near my pc are on different breakers, powerline networking won't work. How ...
2
votes
5answers
207 views

Low voltage fuse blowing in furnace

I have an outside A/C compressor and indoor furnace fan combo in the attic. The unit was off and the 3 amp fuse was blown. I replaced the fuse and used the thermostat to turn the fan on followed by ...
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2answers
45 views

My lamp was making a noise. Now it won't turn on. How to fix?

The lamps in my bathroom was blinking and making a hissing noise. I think the noise was coming from just one of the lamps but I'm not sure. Now I don't have any light / power in the bathroom. I ...
0
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2answers
81 views

Switched outlet keeps tripping breaker

Re-wiring the garage and running into an issue with a switched outlet. The outlet is in the middle of the run (after a GFCI and before a single ceiling outlet for the door opener). I've split the ...
0
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3answers
123 views

Distance between floor and breaker panel?

How far off floor should circuit box be? Changing from 100 to 200 amp. Lead in wires are underground and come into bottom of box making them too short to connect.
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1answer
32 views

Circuity Breaker 2 pole Amp Label

Old breaker needs replacing. Is this a 2 pole 40 amp breaker (40 each pole) or a 2 pole 20 amp breaker? (20 + 20 = 40).
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0answers
83 views

how to wire a 220v 110v transformer at the circuit breaker

does some have a diagram that shows how to wire a 220->110v transformer at the main circuit breaker.. i have a wire ready with 220 and a another ready to receive 110v .. the 220v ready wire has has ...
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2answers
81 views

Is this a faulty GFCI receptacle?

Need some advice on an electrical issue I'm having in my new condo. My bathroom has a GFCI receptacle (similar to this one). I noticed one morning that the LED indicator was out, so I figured ...
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1answer
68 views

Evaluating possible early breaker failures

I'm leasing a commercial space and I have concerns about the breakers and electrical space. All the lights in the space are switched by the breakers, so the breaker box gets visited at least twice a ...
14
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1answer
2k views

Why does a USA/Canada surge-protected extension lead (110V) trip my circuit breakers in the UK (220V)?

I moved from Canada to the UK and for convenience I would like to use some of my Canadian aquired extension leads (for light power items such as ethernet switches). Problem is that the ...