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Author Topic: Electrical help  (Read 735 times)
sacskate (OP)
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February 23, 2014, 08:18:17 AM
 #1

I have a spare 30 amp 2 pole breaker I would like to use as a dedicated mining circuit for my garage. My idea is to run 240v to a NEMA L6-30R receptacle. Then to a pdu, and then to my rigs. Am I right in thinking I need one of these http://www.amazon.com/gp/product/B0093WFT6G/ref=oh_details_o04_s00_i00?ie=UTF8&psc=1 for each of my psu's to connect to the pdu? Also, because I am running 240v does this mean my amps per rig will be less? Say a 1200 watt rig, connected to 120v, runs at  about 11 amps. That same rig would run at 5 amps on 240v.
So a 30 amp breaker at 120v could safely run about 2 * 1200 watt rigs, while that same 30 amp breaker at 240v could about 5 * 1200 watt rigs. Is this correct? I am unsure which pdu I would need, as I know nothing about them. Any adice would be appreciated.
Duane Vick
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February 24, 2014, 03:43:26 AM
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240v is two 120v power sources but at different phases. It is more efficient. You should only operate at about 5760 Watts continously on that circuit but you aren't far over it. If you have to run a lot of wire, consider a larger size wire so you can size up your breaker and change out your receptacle to make more power available.

What size in amps is your current panel, 200amp or less? You might want to install a subpanel in the garage if your non-mining power consumption in your house is pretty low.

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sacskate (OP)
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February 24, 2014, 08:29:19 PM
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200 amp panel. I thought about wiring a sub panel into my garage, but I already have the 30 amp breaker. What would I gain from wiring in the sub panel? I currently only have a roughly 1200 watt miner and a 900 watt running. The rest is for future.
Duane Vick
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February 25, 2014, 02:18:39 AM
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200 amp panel. I thought about wiring a sub panel into my garage, but I already have the 30 amp breaker. What would I gain from wiring in the sub panel? I currently only have a roughly 1200 watt miner and a 900 watt running. The rest is for future.

It's called future-proofing. If you don't feel the need to, then don't. I would still consider upsizing the wire that you run.

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