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Questions tagged [circuit-breaker]

For questions generally relating to safety devices used to automatically stop the flow of electric current in the event of a fault condition. Use this tag for questions about fuses, too.

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1answer
20 views

fuse panel and sub panel replacement with no ground to be found

Replacing an old fuse panel with a new breaker panel, and a remote fuse sub-panel (on the other side of the basement) with a new breaker sub-panel. There is no water pipe anywhere near the incoming ...
0
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1answer
45 views

Wiring question for detached room

Would it be possible to power the detached room from the breaker box with two 30 amp breakers to the room with UF 10-2 wiring underground from the breaker box and then landed into the junction box at ...
2
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2answers
59 views

What does a red light on my circuit breaker mean?

One of the breakers in the breaker box turns red when I switch it on. Some of my bathroom outlets do not work. This breaker is currently off, but when I turn it on, it shows a red light. What does ...
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1answer
38 views

use 2 pole circuit breaker for both basement light and plug

I am doing my basement partitions from scratch and i am doing also the electrical wiring. I have check in the electrical panel board and they have put 2 pole breaker in the plug in the basement. Can i ...
2
votes
1answer
23 views

Issue with powering off an MK brand 32A MCB

I have an MK consumer unit with the house ring main wired into a MK 5932s MCB ( https://www.mkelectric.com/en-gb/Products/CP/sentry/MCBsinglepole/MCBsinglepoletypeb/Pages/5932s.aspx ) Occasionally ...
9
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4answers
2k views

Is it safe to use two single-pole breakers for a 240 V circuit?

I recently had an electrician come out and replace my electric panel. He seemed very knowledgeable and overall appears to have done a good job, even went through and labelled most of the panel... ...
3
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1answer
89 views

Is this a correct installation of a whole house Surge Protector?

Is this a correct installation of a whole house Surge Protector? Note that it's not closest to the main lugs, will that matter? I was unable to bring it closer to the main lugs since those had ...
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1answer
51 views

Can I install Whole Home Surge Protector into two single pole breakers?

I know that Square D HEPD80 calls for installation into a dual pole breaker but I currently don't have a space that's close to the main lugs since the wires that go to those breakers are very short (...
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4answers
65 views

Replace Circuit Breaker on Split Bus Panel

I want to add a 50 amp 220V circuit breaker to my split bus panel to supply a welder. I have two options. One option is to use the empty slot (blue arrow) or replace the spare 220v breaker that is ...
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0answers
20 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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3answers
40 views

Sub Panel using Sub Feed Lugs

We're getting ready to build a detached garage/ADU about 100' from our main house, and have a quick question about getting power out to the building. We currently have a 320amp service to the main ...
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1answer
28 views

Breaker size for 100 amp box

can I put a double 50 amp pole in a 100 amp box
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1answer
20 views

Breaker for pool heater [duplicate]

can I put a double 50 amp pole in a 100 amp box
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1answer
83 views

Should I connect the ground wire to the panel when the conduit is grounded?

I ran 10/3 BX cable to my attached garage for an outlet. The BX has its own green wire for grounding, but since my home is grounded all through the conduit/outlet boxes and is bonded to the neutral in ...
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2answers
75 views

Does code require that you use only breaker brands explicitly listed on the breaker box, or are “compatible” breakers compliant?

To be clear, there's another version of this question of, "If some random off-brand breaker fits, is it acceptable?" We already know the answer is no to that. As an example, the Westinghouse breaker ...
0
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1answer
44 views

Power On But No Power

I have a GE 20amp Breaker that feeds my Dining room and outdoor power for Linai. Breaker off, no power going out, breaker on power at the panel. No power in aforementioned area. GFI outside, ...
2
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0answers
44 views

Purpose of adjust out screw on circuit breaker cover

What is the purpose of adjust out screw on circuit breaker cover. The reason opening was showing is I haven’t put blank back in place.There is one at top and bottom in center of cover.
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2answers
81 views

60amp panel install in an attached garage, do I have my ducks in a row?

I have been considering putting a sub-panel out in my attached garage, wanted to know if I have all my ducks in a row before starting the process and pulling a permit. Items to be powered - Table ...
2
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1answer
87 views

GFCI breaker is tripping when it rains on completely internal circuit

I have a three story house. The first floor is an apartment that is completely covered by the second floor. It has it's own panel which is inside the apartment and mostly uses GFCI breakers. There ...
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2answers
77 views

Standard 15A circuit breaker trips randomly under no load

A few months ago I came home and turned on a light switch with no result. Checked the breaker panel and found the a lighting circuit breaker tripped. It reset with no issue. A few days/weeks go ...
1
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1answer
47 views

Comparison of dual function breakers brands

This is a follow up to this breaker and panel selection question. Apparently, there are gfci failures, and differences between outlet and breaker protection. In particular, gfci breakers are not ...
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3answers
111 views

Identify older breaker type. Pictures

Older house built in florida in 1950's. states it was "rewired" at some point. Looking to add a breaker. and do some shopping Wondering if someone can ID these breakers so i know what im looking ...
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2answers
70 views

Power out, but no GFCI, no breakers tripped

My wife's grandma has been in her house over 50 years. Can't find A GFCI anywhere in the house. I have two bedrooms without power from her plugging too many things in at one time. All other rooms have ...
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1answer
39 views

Circuit Fails when wires capped but not when light is inline

curious to hear your thoughts. It's on old 1960's house and I can't trace all the wiring. In the diagram: when the porcelain single bulb light is hooked-up the Black and dotted white wire, the light ...
2
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1answer
44 views

Tungsten wattage vs resistive wattage for Smart WiFi outlets?

What is the difference between both of them? There was a post similar to my question, but there was no answer about resistive wattage. I want to buy a wifi outlet and I need to make sure it doesn't ...
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0answers
31 views

electrical wiring from pole to house

Just bought a house where electrical wires from pole first goes to detached garage. Main breaker is there in the garage. But it should be in the house. Who is responsible for this incorrect wiring. If ...
0
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1answer
34 views

Complete power loss in over-the-range microwave

The over-the-range microwave in my kitchen (GE, 1500W) has completely lost power. The power loss was intermittent for a day, but then at some point it never came back. I have checked all fuses that I ...
2
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2answers
52 views

Wiring new light switch

I am trying to install a motion activated light switch in my basement of my condo in the United States. On the switch it states that it's max load is 500 watts which should be plenty since the switch ...
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4answers
49 views

Is adding a Time Delay/Dual Element Fuse a good idea for pump motor install

I have 240v circuit with 12awg wire that will service a 3/4hp motor (about 5amps max at 240v). That circuit is protected by a standard 20amp breaker. I was wondering if it is a good idea/warranted ...
2
votes
1answer
71 views

Confusion about main disconnect ampacity

I am currently reviewing and redesigning the electrical installation of my property which came with a 100A SquareD QOD6S MLO load center very badly abused and about 130' away from the service drop ...
4
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1answer
107 views

Why are tandem breakers on shared neutral (MWBC) problematic?

I hear that shared-neutral or multi-wire branch circuits (MWBC) can have issues when used with tandem breakers (also called duplex, twin, cheater or double-stuff breakers). What is the issue there? ...
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2answers
53 views

GFCI breaker problems in trailer

I have a food trailer i’m Building, and am now at the testing and set up stage, and am having problems with my panels. I have a 20kw generator built in, feeding a main panel on one side, and a sub-...
3
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1answer
112 views

Can I add outlets using #14 wire on a circuit with #12 wire and a 60 amp breaker?

I started to remodel one of my rooms and I have had to look into the wiring, now that I'm adding outlets and switches. I checked a wire in a room early on and it was 14/2. That's what I decided to go ...
3
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4answers
114 views

Converting Tandem circuit with shared neutral to GFCI

My exterior outlet/garage outlets are part of a 15a tandem switch currently that's not GFCI. Looks like this: One of the hots runs the string of outlets I want to protect, then there's a hot from the ...
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3answers
2k views

Can someone explain how this makes sense electrically?

The wiring in my house is... odd. Nearly every pair of outlets has one of the outlets connected to a light switch. Sometimes that switch is quite far from the outlet even when there are other closer ...
1
vote
1answer
54 views

How to fix a fuse box socket

I have an old fuse box from the 50s or earlier that accepts type TL fuses. I recently discovered two of the insulating washers inside of the sockets were missing. I took out a washer from a good ...
1
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1answer
60 views

Can an arcing switch damage the breaker or cause a fire?

I live in a 1980s mobile home with light switches and breakers as in the picture. If the switch is arcing or if the switch is held between on/off for a few seconds can this damage the breaker? The ...
0
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2answers
37 views

How to put main breaker in Square D Hom612L100 breaker panel?

This panel (Square D Hom612L100) has 4 slots. Is it possible to make one of them serve as the main breaker?
2
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2answers
107 views

Using an older 200A breaker panel on a 60A feeder circuit from house?

I'm in the planning stages of a new workshop/shed build. I plan to run a 60A ciruit from the main panel in the house to a subpanel in the shed. I recently picked up a used Challenger QM322200 200A ...
2
votes
3answers
130 views

Hit wire on concrete wall while drilling a hole - problem?

Hit a wire while drilling a hole on a concrete wall. Didn't feel like hitting anything, except there was a short, spark, and tripped the breaker. With the breaker back on, haven't noticed any ...
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2answers
75 views

Is it better to use a AFCI/ GFCI breaker in the panel or do to use a AFCI/ GFCI receptacle? [closed]

To protect a bathroom outlet, should I put an AFCI/GFCI breaker in the breaker box or do I put in an AFCI/GFCI receptacle? Can a AFCI/GFCI receptacle be divided into 2 circuits with a 20A breaker ...
2
votes
1answer
46 views

What to do about breaker that triggers main panel, and breaker that's stuck?

I've moved into an older home and am trying to figure out the wiring. There's a small addition at the back of the house where I'm trying to figure out the wiring behind a blank wall panel. Before ...
0
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1answer
79 views

How to split a circuit

I have a one floor house with semi finished basement. On the main floor the Living room, Bath, 2 Bedrooms, garage and Microwave outlets are on 1 circuit. If I go to skinny breakers I have room to run ...
1
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1answer
66 views

Single phase hook up to 3 phase box

I have a customer that wants to install a single phase 120/208v coffee brewer to a 3 phase panel. Can this be done safely? The unit uses 220v for heating elements and 120v for control board.
2
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3answers
168 views

What type of Circuit Breaker is required for this slot?

I was looking at adding an extra breaker or two to my panel as I have two open slots. I opened the front of my panel to see what I was dealing with inside and was perplexed by what I found, I'm going ...
1
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2answers
113 views

Old Style Fuse Box

I'm in the UK and in the process of buying my first house (early 1900's victorian terrace). I paid for a home buyers report which came back with some areas for improvement, one being the fuse box. The ...
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2answers
82 views

Will this breaker fit into this panel?

I'm looking at a Siemens PW1224L1200CU Main Lug Load Center. Will either the 200-amp branch breaker QN2200 or QN2200R fit into this panel? I looked at the wiring diagram but was unsure if a QN2200R ...
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2answers
27 views

Adding Recessed Lighting to bathroom circuit

I currently have a dedicated 15A breaker connected to 2 outlets (with GFCI) in a bathroom using 14/2. These 2 outlets are all that is connected to the breaker. I plan to add some recessed lighting ...
2
votes
1answer
54 views

What size breaker and wire for a barn feeder circuit?

February winds blew down my overhead service to my barn. I would like to replace the 1950's two wire service and update to a safe, sub feed using a complete new underground from a 150 amp house box. ...
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3answers
75 views

2 breakers - should they work as one?

I have a circuit with 2 15 amp breakers. They don’t act, individually they both have to be shut off to shut off the circuits. Am I looking for an outlet with two devices? Example switch and outlet? ...