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#1
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30A duplex receptacles possible?
I've got about 60A of 120v equipment to run in one room (at times, all
of it simultaneously). Currently there's only one 20A circuit feeding the entire floor. So I was thinking of installing two 30A circuits and one 20A. I would have three ganged boxes, each holding two duplex receptacles, and each circuit would feed two of those receptacles (in adjacent boxes). However, when reading my books on wiring, I see no mention of any 30A duplex receptacles...only the single receptacles you might see for an A/C. I could use all 20A circuits I suppose but would probably need four. Are 30A 120v duplex receptacles something that exists? Is it strange to do things this way? thanks! |
#2
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30A duplex receptacles possible?
If you were going to use 30 amp outlets, you'd need to use 30 amp plugs as
well. It would be less expensive to use 15 or 20 amp plugs on the cords, and use more 20 amp receptacles wrote in message ... I've got about 60A of 120v equipment to run in one room (at times, all of it simultaneously). Currently there's only one 20A circuit feeding the entire floor. So I was thinking of installing two 30A circuits and one 20A. I would have three ganged boxes, each holding two duplex receptacles, and each circuit would feed two of those receptacles (in adjacent boxes). However, when reading my books on wiring, I see no mention of any 30A duplex receptacles...only the single receptacles you might see for an A/C. I could use all 20A circuits I suppose but would probably need four. Are 30A 120v duplex receptacles something that exists? Is it strange to do things this way? thanks! |
#3
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30A duplex receptacles possible?
wrote in message ... I've got about 60A of 120v equipment to run in one room (at times, all of it simultaneously). Currently there's only one 20A circuit feeding the entire floor. So I was thinking of installing two 30A circuits and one 20A. I would have three ganged boxes, each holding two duplex receptacles, and each circuit would feed two of those receptacles (in adjacent boxes). However, when reading my books on wiring, I see no mention of any 30A duplex receptacles...only the single receptacles you might see for an A/C. I could use all 20A circuits I suppose but would probably need four. Are 30A 120v duplex receptacles something that exists? Is it strange to do things this way? Run a larger cable to the room, and add a subpanel there, with 20 amp breakers as needed. Bob |
#4
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30A duplex receptacles possible?
what in the world are you running? 60 amps is a lot of heat.
s wrote in message ... I've got about 60A of 120v equipment to run in one room (at times, all of it simultaneously). Currently there's only one 20A circuit feeding the entire floor. So I was thinking of installing two 30A circuits and one 20A. I would have three ganged boxes, each holding two duplex receptacles, and each circuit would feed two of those receptacles (in adjacent boxes). However, when reading my books on wiring, I see no mention of any 30A duplex receptacles...only the single receptacles you might see for an A/C. I could use all 20A circuits I suppose but would probably need four. Are 30A 120v duplex receptacles something that exists? Is it strange to do things this way? thanks! |
#5
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30A duplex receptacles possible?
On Dec 5, 7:29 pm, "RBM" rbm2(remove wrote:
If you were going to use 30 amp outlets, you'd need to use 30 amp plugs as well. It would be less expensive to use 15 or 20 amp plugs on the cords, and use more 20 amp receptacles Do you mean I can hook multiple 20A outlets to a 30A circuit and as long as I don't draw more than 20A from any single outlet (and don't go over 30A cumulative) I'm ok? Wouldn't that have a danger of drawing more than the outlet can handle w/o the breaker tripping? Or perhaps nothing that draws more than 20A would ever be able to plug into a 20A receptacle? |
#6
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30A duplex receptacles possible?
Run a larger cable to the room, and add a subpanel there, with 20 amp breakers as needed. This did occur to me. I have one subpanel off the main now. It uses a breaker that spreads across both sides of the box. Another subpanel would make things simpler in some ways. I guess I can add up to more than 200A total in breakers as long as I don't draw more than 200 at once? |
#7
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30A duplex receptacles possible?
On Dec 5, 7:47 pm, "S. Barker" wrote:
what in the world are you running? 60 amps is a lot of heat. no doubt. this is for my art studio. here's a partial list: electric griddle 12A electric griddle 12A heat stripping gun 12A 1 or 2 space heaters 12A each A/C in summer 8A computers 4A or more tools 15A this wouldn't all be on at the same time, but the griddles, stripping gun, computers, and an A/C or heater would be on any time i want to do encaustic (wax-based) painting |
#8
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30A duplex receptacles possible?
No, you can connect multiple 20 amp receptacles to multiple 20 amp circuits
wrote in message ... On Dec 5, 7:29 pm, "RBM" rbm2(remove wrote: If you were going to use 30 amp outlets, you'd need to use 30 amp plugs as well. It would be less expensive to use 15 or 20 amp plugs on the cords, and use more 20 amp receptacles Do you mean I can hook multiple 20A outlets to a 30A circuit and as long as I don't draw more than 20A from any single outlet (and don't go over 30A cumulative) I'm ok? Wouldn't that have a danger of drawing more than the outlet can handle w/o the breaker tripping? Or perhaps nothing that draws more than 20A would ever be able to plug into a 20A receptacle? |
#9
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30A duplex receptacles possible?
That was my point. None of the things you plan to use have 30 amp plugs on
them, so why would you want to use 30 amp receptacles? wrote in message ... On Dec 5, 7:47 pm, "S. Barker" wrote: what in the world are you running? 60 amps is a lot of heat. no doubt. this is for my art studio. here's a partial list: electric griddle 12A electric griddle 12A heat stripping gun 12A 1 or 2 space heaters 12A each A/C in summer 8A computers 4A or more tools 15A this wouldn't all be on at the same time, but the griddles, stripping gun, computers, and an A/C or heater would be on any time i want to do encaustic (wax-based) painting |
#10
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30A duplex receptacles possible?
On Dec 5, 7:57 pm, wrote:
On Dec 5, 7:47 pm, "S. Barker" wrote: what in the world are you running? 60 amps is a lot of heat. no doubt. this is for my art studio. here's a partial list: electric griddle 12A electric griddle 12A heat stripping gun 12A 1 or 2 space heaters 12A each A/C in summer 8A computers 4A or more tools 15A this wouldn't all be on at the same time, but the griddles, stripping gun, computers, and an A/C or heater would be on any time i want to do encaustic (wax-based) painting You need alot of lumens to grow alot of Mariguana in ONE ROOM, so 60a might do it., Yea Art studio. The Art of pottery................ |
#11
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30A duplex receptacles possible?
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#12
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30A duplex receptacles possible?
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#13
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30A duplex receptacles possible?
I've got about 60A of 120v equipment to run in one room (at times, all
of it simultaneously). Currently there's only one 20A circuit feeding the entire floor. So I was thinking of installing two 30A circuits and one 20A. this is for my art studio. here's a partial list: electric griddle 12A electric griddle 12A heat stripping gun 12A 1 or 2 space heaters 12A each A/C in summer 8A computers 4A or more tools 15A It sounds like you have a lot of high current appliances. I personally would run a separate circuit for each of those. Based on your list, I would install eight 20A circuits, using 12/2 cable, and regular 20A recepticles. Your computers could share the lighting circuit if you wish. Depending on your usage patterns, you may be able to combine the stripping gun and "tools" on a single circuit too. For example, you probably wouldn't be using the stripping gun, a drill, and a dremel tool all at the same time. Those could share a circuit if you wish. Basically, if you use an appliance that draws 10A or more and is on continously (i.e. the griddles), you should have a separate circuit for it. You could probably get by with 15A circuits for most of your appliances, but it wouldn't cost much more to run 20A and would give you greater capacity. If you have balanced loads (i.e. two matching griddles), you could combine a couple of circuits with a single 12/3 cable, sharing the neutral line. Just make sure the two hot wires are on opposite legs of the incoming 240V supply. This would reduce your cable runs somewhat, and is frequently done for similar situations like kitchen wiring. If your breaker panel is a long distance from your studio, it may make more sense to install a subpanel in the studio, then run each circuit from the subpanel. This would ease later additions too. Anthony |
#14
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30A duplex receptacles possible?
Thanks all for the advice---I really appreciate it. I'm now leaning
towards a subpanel in the studio, as running 6-8 circuits from the basement to the 2nd floor attic is going to be difficult. I have a passage that will work for 2 or 3 cables, but 6-8 will require a lot more fishing. I appreciate the 12/3 cable idea...I'll consider that. This would also be easier to accomplish with a subpanel (so I wouldnt' have to move current breakers to get on both sides of the incoming). Just to clarify--when I originally proposed 30A outlets I was hoping that 30A outlets were available in the 'normal' blade style (e.g. it would look just like a 20A plug but would allow up to 30A to be drawn through it, say for two griddles). Clearly that's not the case. thanks again |
#16
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30A duplex receptacles possible?
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#17
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30A duplex receptacles possible?
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#18
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30A duplex receptacles possible?
wrote in message ... Run a larger cable to the room, and add a subpanel there, with 20 amp breakers as needed. This did occur to me. I have one subpanel off the main now. It uses a breaker that spreads across both sides of the box. Another subpanel would make things simpler in some ways. I guess I can add up to more than 200A total in breakers as long as I don't draw more than 200 at once? Indeed you can. |
#19
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30A duplex receptacles possible?
On Wed, 05 Dec 2007 17:02:08 -0800, benjunk wrote:
I've got about 60A of 120v equipment to run in one room (at times, all of it simultaneously). Currently there's only one 20A circuit feeding the entire floor. So I was thinking of installing two 30A circuits and one 20A. I would have three ganged boxes, each holding two duplex receptacles, and each circuit would feed two of those receptacles (in adjacent boxes). However, when reading my books on wiring, I see no mention of any 30A duplex receptacles...only the single receptacles you might see for an A/C. I could use all 20A circuits I suppose but would probably need four. Are 30A 120v duplex receptacles something that exists? Is it strange to do things this way? thanks! Go with 20 amp circuits. Wiring is easier, cheaper and less explaining to do if and when you ever sell your property. Besides, if you split the loads over several circuits, if one circuit fails or blows, the others are still working. |
#20
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30A duplex receptacles possible?
On Wed, 05 Dec 2007 17:57:00 -0800, benjunk wrote:
On Dec 5, 7:47 pm, "S. Barker" wrote: what in the world are you running? 60 amps is a lot of heat. no doubt. this is for my art studio. here's a partial list: electric griddle 12A electric griddle 12A heat stripping gun 12A 1 or 2 space heaters 12A each A/C in summer 8A computers 4A or more tools 15A this wouldn't all be on at the same time, but the griddles, stripping gun, computers, and an A/C or heater would be on any time i want to do encaustic (wax-based) painting Isolate your computers on their own circuit to protect them. Are you going to have all the things running at once? Probably not. |
#21
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30A duplex receptacles possible?
In article ,
HerHusband wrote: If you have balanced loads (i.e. two matching griddles), you could combine a couple of circuits with a single 12/3 cable, sharing the neutral line. Just make sure the two hot wires are on opposite legs of the incoming 240V supply. This would reduce your cable runs somewhat, and is frequently done for similar situations like kitchen wiring. Actually, he wouldn't even need balanced loads. Using an Edison circuit like that and breaking the brass tab on the duplex outlets would give him some nice duplexes where he could draw 20 amps from both the top and bottom outlets of a duplex. |
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