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| Forum topic by Bertha | posted 784 days ago | 2237 views | 0 times favorited | 37 replies | ![]() |
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784 days ago |
LJ’s, I’m not trying to start yet another electrical argument but I have a new saw that I can’t power up and my normal sparky is out of town. The responsibility is my own but I’d appreciate some help with this (I hope) simple problem. Overall power: I have two power supplies going to my shop: 1) the one that was in place when I bought it (40A serving outlet boxes and lights) and 2) a second 60A service I had installed by a professional (three 20A circuits, one to my dust collector and lathe (110V) and one each to my tablesaw and bandsaw (240V). The issues: When I had the 60A subpanel installed, I asked the electrician not to install the second 240V receptacle (for the bandsaw) because I wasn’t sure what kind of plug it would have. Per my request, he just coiled the wires in the box and placed a solid cover over it. The development: I bought the bandsaw (another forum here) and wired it up and connected it to the receptacle. Dead. Popped the loadcenter cover & I see that the outlet is not connected to the breakers BUT all breakers seem to be occupied (?). I have a Fluke meter, a general knowledge, and a generator to light the shop when the power’s out. Can anyone tell from these pictures what he did and how I connect the locking 240V to the breaker? I realize that this is the internet. I just want to have an idea before I call the electrician. Many thanks, my friends.
-- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog |
37 replies so far
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#1 posted 784 days ago |
Cant help ya there, I am only a carpenter. :) -- CJIII Future cabinetmaker |
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#2 posted 784 days ago |
Oh I see it Cessna! There’s a whole bay empty. However, I know the panel is rated for only 60A, I’m only using 40A, and all three 20A breakers look occupied! If one of the 20A were empty, It’d be a no-brainer. Thanks for looking! -- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog |
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#3 posted 784 days ago |
I agree, half full. I don’t think he put the breaker in the box yet. -- Jack T, John 3:16 "For God so loved the world that he gave his only Son, so that everyone who believes in him might not perish but might have eternal life." |
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#4 posted 784 days ago |
It is not uncommon for a panel to contain breakers who’s total rated load exceeds the rating of the panel. You need a double pole breaker rated for 20A each side to connect the 220v recepticle. A qualified electrician will have no problem handling the job. Good Luck! Be Careful! Herb -- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090 |
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#5 posted 784 days ago |
First off any info I give you is coming from an amature and I make no claims to knowing loads about the way electrical works. I have connected and serviced my own electrical for years and years and use extreme safety when doing so. Looks like you have an unconnected line up top that is yellow and another on the bottom. Also it looks like your breakers are all used. If your bandsaw is to be 220 then you need a double pole breaker of an amperage that will not pop it. Your manual should say what you need minimum. I would think you wouldn’t need anything larger than a 20 amp double pole but I’d have to know how much your bandsaw draws. This is actually pretty simple just make SURE that the power to this box is completely OFF before you touch anything. DOn’t try to do this with it on. And by this I mean the power that is supplying this box not the power that is in this box. If you’re unsure then go to your main panel and shut off the main Breaker which will shut off absolutely everything( unless your power is coming straight from a power line or something). Hopefully you know where this power is coming from. If not get and electrician out there. -- LAS, http://www.abettersign.com |
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#6 posted 784 days ago |
It looks to me like you may have room for more breakers on the left side ,,the red and black wires hanging down, is a circuit that he left . Unhooked. -- E J ------- Always Keep a Firm Grip on Your Tool |
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#7 posted 784 days ago |
It looks to me that whoever put in the circuit breakers didn’t do it right. They look like 110 Volt circuit breakers. One with the black wire and one with the red wire. You need a circuit breaker the has a strap across the levers so that when it fails it will pop both sides of the line. To me it looks like you have a sub panel that will only accept three breakers. 110 require one slot and 220 requires two slots, So you are full in my estimation. -- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com † |
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#8 posted 784 days ago |
You guys are stars. I’ve got to run but I will read everything in detail shortly. Thanks so much! -- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog |
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#9 posted 784 days ago |
I have a 200A panel in my home and the total Amperage of the breakers adds up to 400 or something like that. I never really thought of it until you mentioned it. -- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog |
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#10 posted 784 days ago |
The reason the total amperage on your breakers exceeds the total amperage on the panel is that you -- As ever, Gus-the 74 yr young apprentice carpenter |
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#11 posted 784 days ago |
Examining the panel photos closely: 1. Panel is an eight circuit panel. There is one more empty slot on the right bottom and four empty slots on the left. 2. The top two breakers appear to be connected to separate 110 v circuits. The red wire appears to be from the 12-2 cable in the front connector at the bottom and the black wire appears to be from the cable behind it. 3. The unconnected red/black wires on the bottom are for the 220v circuit I assume. I would get a DIFFERENT qualified electrician to install the new 220v breaker. The reason I’d get a different electrician is that I see a white wire connected to red wire on the left hand side and I’m concerned about that circuit and would have the new electrician examine it and ensure it is safe and correctly wired. If it is he will use color coding tape to recode the white wire (white is for NEUTRAL) to an appropriate color for hot conductors. Good Luck! Herb -- Herb, Florida - Here's why I close most messages with "Be Careful!" http://lumberjocks.com/HerbC/blog/17090 |
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#12 posted 784 days ago |
HerbC: I was looking at that red/white wire and wondering also. -- Don't rollerskate in a buffalo herd |
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#13 posted 784 days ago |
HerbC I think you nailed it all on the head right there. Bertha -- E J ------- Always Keep a Firm Grip on Your Tool |
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#14 posted 784 days ago |
I agree with the above. In the third photo lower left do I also see a black and white splice? And is that black wire from the same source as the red and white splice or am I seeing things (been known to see things, especially after eating the worm). -- Jack T, John 3:16 "For God so loved the world that he gave his only Son, so that everyone who believes in him might not perish but might have eternal life." |
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#15 posted 784 days ago |
All above I had considered. It made no sense to me why I wasn’t seeing a double stacked breaker for the 240 with two hot wires coming from it. I expected to see either one (for the existing saw, expecting to add a second for my bandsaw) or two (expecting the second to await my bandsaw). It looks to me like he’s used two 110’s each with a hot to power a single 240 receptacle (the tablesaw). Thanks for all of this. This guy came recommended from work. I’ll get someone else out. -- My dad and I built a 65 chev pick up.I killed trannys in that thing for some reason-Hog |
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