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2answers
51 views

Do I need a breaker in main pannel for sub pannel?

I have no breaker space in the main 200amp panel. I'd like to set a 100 amp sub panel with its own breaker. Can I connect the sub panel to the main entry lugs on the 200 amp panel?
1
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1answer
31 views

220 hot tub / spa breaker question

Ok...... I had an older spa pump that went out. I also replaced the spa pack. The old spa pack had a GFCI breaker in it and the new one does not. So now I have to add gfci protection to the spa via ...
0
votes
1answer
44 views

Should I bond neutral in sub panel- there is no electrical ground

I have a question about my sub panel that I'm installing in a shed in the back yard. I'm using a 3 wire feed from the main panel to the sub panel (H-H-N). ...because I'm using the 3 wire feed, I'm ...
3
votes
1answer
67 views

Upgrade Service or Sub Panel or? [duplicate]

I just moved into a small home (~1150sf) that currently has 150 amp service. The disconnect is outside by the meter (pictured). The meter is attached to the side of the carport, which I'm about to ...
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0answers
54 views

Can I convert my main panel to a sub-panel to install a hot-tub?

My wife would like to have a hot-tub. The immediate problem there is that the current service entrance is directly above where it would go. So, I am looking at undergrounding my service (added bonus ...
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votes
1answer
62 views

Can I move the main electrical panel to the unattached garage?

My main electrical service runs overhead from a pole behind my unattached garage, to the back of the house. There is also an underground conduit from the house to the garage supplying a sub panel ...
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0answers
62 views

Where should I bond neutral to ground? [duplicate]

I have an old house that was remodeled with a bathroom addition added years ago. I have two breaker panels: the outside service entrance panel (A) and another panel in the garage (B). I found bonds ...
0
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2answers
82 views

Can the breaker on a sub-panel be rated for more amps than the main breaker?

Got a new spa I want to replace old 40amp sub with a 50 amp sub GFCI ( the only one available ) it is on a dedicated 40 amp from the main. Maybe a stupid question but can my main be less than my sub? ...
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0answers
40 views

Adding 60,70 or 80 amp sub pannel with ALU#4 SER service entrance wire from 150amp main

I have a 150amp 120/240 and a three phase pannel that are connected by 4 wires. two of the 120/240 is shared between two separate meters/panels. The 3 phase panel is also connected to an extra wire ...
3
votes
1answer
266 views

240V, 40A stove outlet was split into two 120V, 20A circuits, how do I properly isolate the neutral from ground?

I recently been told that a subpanel box that was installed in my kitchen, which previously supported an electric stove, is wired incorrectly. The subpanel takes the 240 line and splits it into two ...
2
votes
0answers
30 views

Increasing the size of a sub panel

I am considering solar and the easiest place to connect the system for grid-tie is into a subpanel. With the 2013 CEC, this is permitted. However, I have a slight problem. I don't have any free ...
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2answers
60 views

Main to sub panel feed

I'm working on a small finished outbuilding that has a sub panel for lights, outlets, etc. From the main he sent (2) separate 70amp lines to the building sub panel into (2) 40 amp breakers, each 70 ...
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votes
1answer
232 views

What wire type & size for sub-panel in a shed?

I need to install a sub-panel in a shed. Total run distance from main panel to sub-panel is 80 ft and includes three 90 degree turns. Burial distance will be 18". I'm thinking to install a 60-amp ...
1
vote
1answer
92 views

60 amp single phase sub-panal from 3phase panel without Neutral

ThreePhaseEel has asked me a couple of questions. First, I want to thank him for the answer. As to the color of the 3 phase wires from the pole, all are green. I don't see any white either. The high ...
1
vote
2answers
177 views

Grounding requirements for main panel and subpanel

I recently had my main service professionally upgraded to 200A and had a 60A subpanel installed in my master suite to support future additions. All work passed city inspection, for whatever that's ...
1
vote
1answer
335 views

Single sub-panel from 3 phase panel and the main breaker size

I have an old 3 phase panel next to a separate single phase 100 amp panel that is being used by one residence. This space has been used as a carpenter shop and an office in the past. Now it is being ...
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0answers
78 views

Feeder type and size for 60 amp. subpanel

Is it possible/recommended to use E18679 (UL) ROMEX SIMPull AWG 6 CU 3 with AWG 10 ground Type NM-B 600 volts as feeder from a 60 amp breaker to install a subpanel? Subpanel will be located in ...
2
votes
1answer
220 views

What size feeder do I need for a basement electrical subpanel?

I would like to know what size and type of feeder wire and feeder breaker do I need for my basement subpanel where I am planning to add six 15 Amp circuits, and three 20 Amp circuits. This will be 2' ...
2
votes
1answer
182 views

How can I make 3 wire sub-panels compliant with current codes?

The sub-panels in my house are all split-phase 3 conductor with neutral and grounds mixed. Is there any way to make this compliant without running new 4 conductor feeders? (Some of the feeder cables ...
2
votes
1answer
524 views

What size wire should I use for a 60amp subpanel?

I am installing a 60 amp subpanel in a workshop in my backyard and I will have 2 - 20 amp services with 4-5 outlets on each and 1 - 15 amp service for lighting. The length from the main panel to the ...
3
votes
1answer
286 views

Should I connect the bare ground wire from the main panel to the grounding bar in the subpanel?

I have a main panel that was converted to a sub panel when a new Main Panel was placed in a new addition to the house. So now, the subpanel appears to have two grounding wires connected along with ...
0
votes
1answer
92 views

Electric line to subpanel

I'm running 2 100 amp 110 lines 35 yards from my well house main to a sub panel in my garage. Do I need to run a ground wire and a neutral wire or can I just run one of them from the sub panel to a ...
3
votes
1answer
299 views

Can I add a sub-panel near the main disconnect outside my house?

I have an outside main disconnect of 125 amp and a inside main panel. The disconnect panel outside has an extra space that will accept a dual pole breaker. What I would like to do is add a sub-panel ...
3
votes
2answers
1k views

Sub Panel Install - Main Panel Full

I am looking into installing a sub panel in my basement which will be used to feed electrical circuits to the basement that is currently unfinished. I have an 150 amp main panel and was thinking of ...
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vote
2answers
72 views

Grounding subpanel to box - 'tap threads'

I've installed a subpanel and need to ground the grounding bar to the actual panel box. I was instructed to run a #6 jumper to a hole on the box, attach with a screw, making sure to 'tap threads'. ...
0
votes
1answer
187 views

Adding electrical service to detached garage

Please let me know if this sounds correct- Sub panel fed from 80amp breaker in main building 200amp load center. Roughly 75' of 1" PVC conduit from existing load panel, under existing timber deck, ...
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vote
0answers
56 views

Sub Panel Remote Control?

I would like to know if it is possible to have a relay control power to a sub panel? I am thinking of wiring a cottage with most of the lights in one sub panel. I would like to be able to power this ...
3
votes
1answer
306 views

subpanel ground requirement - attached vs unattached structure - what difference does it make?

Subpanel in the garage is currently fed by 10-2 w/ground romex and is grounded both at the main panel via the ground wire and to the plumbing next to the subpanel (underground iron pipe). I want to ...
1
vote
1answer
317 views

Should both ground and neutral in an electrical subpanel be bonded to the service ground?

I put in a 100 AMP sub panel from a 200 AMP service. The neutral and ground are separated in the sub panel. Would this bond the sub panel to the ground and neutral coming from service ground wire? I ...
2
votes
1answer
2k views

Sub panel and neutral and ground bus bar

Some HVAC people under previous home owners put in a sub panel box and ran the AC as well as some lighting and outlet circuits from the sub panel. The bus bars on the two sides of the panel box were ...
1
vote
0answers
141 views

Sub panel cable feed code

The inspector failed the sub panel box location because it only had 6 feet clearance and not 6.5. The electricians came and moved the sub panel box, but they did not run a new feed cable. They put a ...
2
votes
1answer
8k views

Why does a subpanel need separate ground and neutral?

Why does a power sub panel have to have separate neutral and ground bars other than code satisfaction? Does a sub panel need a main breaker if there is one at the main? Also, does the sub panel ...
2
votes
3answers
255 views

Can I replace the main breaker in an electrical panel with a smaller one?

I have an older 60amp fuse box in a rental property that is wired as a sub panel off my main 100amp service. I would like to upgrade to a new circuit breaker panel so tenants can not pull out the ...
3
votes
3answers
559 views

What is wrong with this panel wiring?

I have a main breaker panel downstairs, and a subpanel upstairs. After I hired an electrician to rerun the service entry cables, nothing upstairs is right, and all the upstairs lights blew as soon as ...
1
vote
0answers
4k views

What size wire do I need for a 100amp underground 300 ft run?

I want to put in a 100amp subpanel in my garage. The run will be underground and 300ft long. I have a Siemens panel with breakers rated at 60/75 deg C. What is the proper wire size I need? I was ...
3
votes
3answers
376 views

Why am I getting no power to the branch circuits with a new sub-panel?

My home had an ancient Zinsco sub-panel in which the breakers were grounding out and arcing to the panel. I've swapped it with a new Eaton 100 amp panel. I've re-installed all the breakers, and ...
1
vote
1answer
4k views

Can you put a small breaker panel after a 30 amp breaker from main panel in the house?

Looking to run lights in my garage. If I put a 30 amp breaker in my main panel on a 10 wire to a small breaker panel in my garage, can I put 2-4 15 amp breakers out there for the lights? Likewise, ...
0
votes
1answer
881 views

What subpanel and number of circuit breakers should I install in a detached garage?

I no longer am dealing with my contractor. Long story. But he ran 2 10-3 wires out to my garage for power. I think he was planning on putting a 30 amp breaker on the panel in the house for each wire ...
0
votes
0answers
87 views

Can I feed a 30 amp plasma cutter from this 50 amp subpanel?

The subpanel is fed from a 50 ampere 240 volt two pole breaker. Currently there are 3 20 ampere 120 volt breakers, running on it (two freezers and an air compressor). Would like to add a 30 ampere ...
1
vote
1answer
3k views

How to determine what type and gauge of wire should used for underground wiring to a detached subpanel?

I Will be installing a subpanel in a detached garage. The subpanel will be 60 amp. The garage is about 30' from the main-panel in-house, and I will of course get an exact length before selecting the ...
1
vote
3answers
2k views

How do I determine the fill rating of a conduit?

I Will be installing a subpanel in a detached garage. The subpanel will be 60 amp. The garage is about 30' from the main-panel in-house, and I will of course get an exact length before selecting the ...
0
votes
2answers
10k views

How to properly ground a subpanel in detached building?

I Will be installing a subpanel in a detached garage. The subpanel will be 60 amp. The garage is about 30' from the main-panel in-house, and I will of course get an exact length before selecting the ...
0
votes
0answers
119 views

Can two circuits feed one sub-panel while remaining separate?

I'm turning a shed into a workshop. I already have two circuits that run to nearby exterior outlets that I want to tie into to power my shed/workshop. I would like to have 1 circuit for lights and the ...
4
votes
2answers
6k views

What type of wire should I use to feed a 70 ampere subpanel?

Finishing a basement and I need to add a subpanel. Main panel is outside. Subpanel will be in the basement. 70 Amp breaker in the main to feed the subpanel. I was thinking THHN but would this mean ...
7
votes
2answers
2k views

Can an electrical subpanel go underneath plumbing?

I was about to wire up my new basement subpanel when I realized I had put it directly under a toilet. I don't think this is a code violation. I can relocate it with some difficulty. I'm also ...
0
votes
1answer
2k views

Can I connect my generator transfer switch to a subpanel instead of to the main panel?

My house has a generator transfer switch (ProTran 30310B) attached to circuits in the main panel (see photo). I added an attached garage to the house. I want to add a subpanel in the garage, ...
1
vote
1answer
2k views

Do I need conduit for an indoor sub-panel feeder line?

I'm adding a 100A sub-panel to feed a stove and water heater. The sub panel is indoors and in the same building as the mains panel. Do I need to run the supply feeder in conduit? I'm in Michigan and ...
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5answers
8k views

Can I install a Subpanel (in a seperate building) using a 3 wire connection (2 hots and 1 grounded neutral)?

Can I use a 3 wire connection (2 hots and 1 grounded neutral) to install a subpanel in a seperate structure if I install a seperate ground rod to the grounding bus in subpanel? I have 8/3 w/o ground ...
1
vote
1answer
222 views

Why is one half of a subpanel not working?

I have 12/3 wire running out to my garage. I have a double 20 amp breaker in main box and a subpanel with two single 20 amp breakers in the garage with black to one breaker and red to the other. The ...
5
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2answers
2k views

Does the neutral wire float or go to the neutral bus on a sub panel?

Does the neutral wire float or go to the neutral bus on a sub panel?