Room set up and utility supply amperage for (30) 600w HPS - doable on domestic!?

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gardenheart

gardenheart

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Hi all!

Looking to set up a garage space probably about 6m x 3m. Got a deal (I think) on some used HPS gear to get me going - and then maybe switching to new COBs after a few cycles a little further down the road. (I have worked for someone else using bloomingled panels which are spendy but impressive results!)

So the question is, can a domestic supply, assuming the property (I am looking at to rent tomorrow) has at least a 100 amp fuse on a single phase, carry the load!?

My initial research has not got me very far in terms of calculating multiple units.

i.e, (in the UK) if one ballast is (9.5)Amps at 220v, and if I am running say 10 ballasts, that's already 10 x 9.5A = 95Amps which is already too much - let alone 30!

And/or if I have 10 x 600W lamps for 6000W, divided by 220v = 27Amps

Do these all need to be added together ballasts + lamps (along with AC, fans, etc, etc) or am I misunderstanding how multiple units add up

Any initial thoughts, advice, warnings!?

Thanks folks
 
gardenheart

gardenheart

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OK
gardenheart said:
Looking to set up a garage space probably about 6m x 3m. Got a deal (I think) on some used HPS gear to get me going - and then maybe switching to new COBs after a few cycles a little further down the road. (I have worked for someone else using bloomingled panels which are spendy but impressive results!)

So the question is, can a domestic supply, assuming the property (I am looking at to rent tomorrow) has at least a 100 amp fuse on a single phase, carry the load!?

i.e, (in the UK) if one ballast is (9.5)Amps at 220v, and if I am running say 10 ballasts, that's already 10 x 9.5A = 95Amps which is already too much - let alone 30!

And/or if I have 10 x 600W lamps for 6000W, divided by 220v = 27Amps

Do these all need to be added together ballasts + lamps (along with AC, fans, etc, etc) or am I misunderstanding how multiple units add up
Click to expand...
OK, think I can answer my own question now - the power rating of the ballasts need to be added so, for 20 x 600w ballasts, I'd be looking at 20 x 600 = 12,000 W divided by 220V = 55A - right!?
 
gardenheart

gardenheart

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Oops, is it 240v in the UK - I forgot! Been in the states and wherever til now!
 
One drop

One drop

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Hi welcome to the farm enjoy the site , happy growing regards Od .
 
Dirtbag

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Anthem said:
Technically it is 115 volts plus or minus 10 percent. hence the 110/120 or 220/240. The grid is designed to be plus or minus 10 percent
Click to expand...

True but for Amp load calculations you always use 120 or 240. At least in North America.

Edit; no I just looked into it, it used to be 115, but now power companies are required to deliver single phase voltage of 120 +/- 5% either way.
 
Anthem

Anthem

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Dirtbag said:
True but for Amp load calculations you always use 120 or 240. At least in North America.

Edit; no I just looked into it, it used to be 115, but now power companies are required to deliver single phase voltage of 120 +/- 5% either way.
Click to expand...
Funny, I just spoke to my electrician and he said the same thing. If sucks getting old. You remember something and then they change it and you are like WTF. Dam Edison why didn't he invent LED's. HA HA!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 
cemchris

cemchris

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Digi 600 watters @ 240 will be at about 3 amps each to play it safe.
 
PpmOver9000

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Didn't want to start a new thread because I think this is a simple question for those who have electrical knowledge.

I have a single pole 20Amp breaker installed that will be connected to a duplex 250v/20amp receptacle. There will be 2 gavita LED's plugged into the receptacle (240v/625watts)

I seem to get that this is enough amps but I keep reading online for anything with 240v, a double pole breaker is required. I find conflicting information from my own web search. I just want to confirm if my current setup will be okay or do I really need to replace my breakers.

I apologize in advance for any mistakes in my electrical terminology, I am a noob in that regard.
 
Anthem

Anthem

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PpmOver9000 said:
Didn't want to start a new thread because I think this is a simple question for those who have electrical knowledge.

I have a single pole 20Amp breaker installed that will be connected to a duplex 250v/20amp receptacle. There will be 2 gavita LED's plugged into the receptacle (240v/625watts)

I seem to get that this is enough amps but I keep reading online for anything with 240v, a double pole breaker is required. I find conflicting information from my own web search. I just want to confirm if my current setup will be okay or do I really need to replace my breakers.

I apologize in advance for any mistakes in my electrical terminology, I am a noob in that regard.
Click to expand...
From what you are saying I have gathered that you have said circuit breaker that has one pole on it. I am assuming you are in a residence. Is that correct?
In order to get 240 volts in a residence you have to use both of the hot legs coming into the panel. The hot legs are each rated at 120 volts. When you combine the feed coming in from both hot legs you get 240 volts. If you do a google search for watts to amps conversion chart you can nail the power draw. Only plan on using 80 percent of the listed circuit breaker if it says 20 amps on the breaker do not go over 16 amps. Circuit breakers get hot as they get closer to their yield point and shut off so you really do not want to go over 16 amps.
 
PpmOver9000

PpmOver9000

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Anthem said:
From what you are saying I have gathered that you have said circuit breaker that has one pole on it. I am assuming you are in a residence. Is that correct?
In order to get 240 volts in a residence you have to use both of the hot legs coming into the panel. The hot legs are each rated at 120 volts. When you combine the feed coming in from both hot legs you get 240 volts. If you do a google search for watts to amps conversion chart you can nail the power draw. Only plan on using 80 percent of the listed circuit breaker if it says 20 amps on the breaker do not go over 16 amps. Circuit breakers get hot as they get closer to their yield point and shut off so you really do not want to go over 16 amps.
Click to expand...

Got it, ok so if I understand correctly my current setup will be okay as long as I don't use too much of the amps. I am estimating around 3 amps per light and there will be 2 lights plugged into the receptacle. So using 6 amps out of 20 amps on the single pole is okay? Yes I am in residential

The lights each are rated at 645 watts
 
Anthem

Anthem

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PpmOver9000 said:
Got it, ok so if I understand correctly my current setup will be okay as long as I don't use too much of the amps. I am estimating around 3 amps per light and there will be 2 lights plugged into the receptacle. So using 6 amps out of 20 amps on the single pole is okay? Yes I am in residential

The lights each are rated at 645 watts
Click to expand...
Math sounds about right, but if you are using a single pole breaker I think you only have 120 volts at the plug.
 
PpmOver9000

PpmOver9000

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Anthem said:
Math sounds about right, but if you are using a single pole breaker I think you only have 120 volts at the plug.
Click to expand...
Yes this was my original confusion. Because the breaker itself says 120v/240v on it so I assumed it was okay. But I keep seeing that a double pole is required. I was really hoping I didn't have to re-do it haha. Better than blowing something, just wanted to check here first.
 
Anthem

Anthem

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PpmOver9000 said:
Yes this was my original confusion. Because the breaker itself says 120v/240v on it so I assumed it was okay. But I keep seeing that a double pole is required. I was really hoping I didn't have to re-do it haha. Better than blowing something, just wanted to check here first.
Click to expand...
I assume you have the gavita 1700 E fixture. That fixture comes WITHOUT the plug. You have to specify 120volt or 240 volt so you can get the correct plug. Make sure the plug matches the outlet. From what I have been told by you, it appears to be 120 volt. The duplex will have 2 vertical slots and a round hole below or above for the grounding post. This is the standard 120volt receptacle in the USA. A 240 volt receptacle will have one of the vertical slots turns 90 degrees. This is the standard 240volt receptacle in the USA>
 
PpmOver9000

PpmOver9000

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Anthem said:
I assume you have the gavita 1700 E fixture. That fixture comes WITHOUT the plug. You have to specify 120volt or 240 volt so you can get the correct plug. Make sure the plug matches the outlet. From what I have been told by you, it appears to be 120 volt. The duplex will have 2 vertical slots and a round hole below or above for the grounding post. This is the standard 120volt receptacle in the USA. A 240 volt receptacle will have one of the vertical slots turns 90 degrees. This is the standard 240volt receptacle in the USA>
Click to expand...
Yes, the 1700 fixture. The plug I purchased was the 240v version but I noticed after I ordered it that the picture shows 2 horizontal prongs rather than 1 horizontal and 1 vertical. Which is where the confusion set in for me. I have purchased the correct receptacles that have 2 horizontal slots rated for 20amps/250v. However, like you already know the breaker is a 20amp single pole breaker. I just want to confirm if it's okay to have 2 of these fixtures on a 20amp single pole breaker or am I going to have to replace them with double pole breakers.
 
PpmOver9000

PpmOver9000

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As I keep searching around, I am fairly certain now that I need to replace my breakers to double pole breakers. I think I subconsciously just wanted someone to confirm my current setup is ok so I didn't have to re-do my work. But home depot it is...thanks for the replies haha
 
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