1200 watts on one breaker too much?

is 2 600 watt lights on one circuit too much?? thanks in advance.

What amp breaker? Also...is that the only thing on it?

10 amp breaker yes thats too much, 20amp nope thats just fine

15 amp breaker and yes thats all thats on it.

No. I have ran two 600s on a 15 amp breaker for years. On a 10 amp you'd have issues. I always like to have a 1-2 amp buffer.

1200 will work well on a 15amp, just dont start adding fans and chillers/heaters to that same breaker or you WILL start to see issues, general fast rule is 1000w per 10amp

cool thanks guys. got a veg room and a flower room im building. 2 600s in the flower and 2 400s in the veg. i know i can run the 2 400s and my fans on one but thought 2 600s would be pushing it. thanks again guys!

Should be good to go...to convert watts to amps take the number of watts divided by volts...so if u live in a modern home, more than likely 110v...1200/110= 10.9 You want to keep your load less than 80% of the breaker load to be safe. You are about an amp under that so you should be good to go.

Neon is on the money. That's by code too w 80% load. I work w electricity

nice! thanks guys gave me better info than i expected! learned some good shit here.

So would you guys say 2 600s is the most and 3 is just to much?

NEONKINEBUDZ said:

Should be good to go...to convert watts to amps take the number of watts divided by volts...so if u live in a modern home, more than likely 110v...1200/110= 10.9 You want to keep your load less than 80% of the breaker load to be safe. You are about an amp under that so you should be good to go.

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1200w/120v = 10a * 1.2 = bare minimum requirement including 20% buffer = 12 15-12= 3A free after 20% factor and 2 600w lights.. well more than an amp under.

doubletake said:

So would you guys say 2 600s is the most and 3 is just to much?

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For a 15A? definitely 2 600s tops.. 3 would be 18.2A after 20% overhead to avoid fatigue/stress/failure.. and wouldn't go with less than 20A for 3 of them.

(3) 600w's on a dedicated 20A breaker and that's it. You would have to run another circuit for other equipment

Damn so basicly it's pretty hard to set up a good sized grow in a rental because making a dedicated breaker and all that is noticeable and the land lord would probley get pissed, could a light controller make it able to handle it like switch it to 210 so I could do 4 600s with the 20 percent cushion.

doubletake said:

Damn so basicly it's pretty hard to set up a good sized grow in a rental because making a dedicated breaker and all that is noticeable and the land lord would probley get pissed, could a light controller make it able to handle it like switch it to 210 so I could do 4 600s with the 20 percent cushion.

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If you already have a 220v outlet, then sure, you could use light controller and alternate on/off based on setup and lights - otherwise.. you'd need a dedicated 220 to pull it off, and that goes back to the noticeable, and pissed landlord mention.

a 600 is 6.5 amps

Figong said:

1200w/120v = 10a * 1.2 = bare minimum requirement including 20% buffer = 12 15-12= 3A free after 20% factor and 2 600w lights.. well more than an amp under.

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I always use 110v to convert because of line drop. To me it is safer to use the lesser of the two. There are probably not very many outlets in a home that are actually at 120v probably closer to 115v. But I am not here to argue. The fact is, two 600w is the most on a 15a. Again, I am not in disagreement at all and I find your posts to be very useful and contain very good information. I just like to be as safe as possible.

The rated voltage input in each cable the power company feeds to a panel is 120 volts plus or minus five percent due to fluctuations in transmission loss in the power lines. This means that the power at the panel can be as low as 114 volts. As the electricity encounters resistance in conductors and does work while passing through electrical devices along its path, its voltage drops still lower. In a house with extensive circuitry, it is not unusual to get voltage readings of 110 volts or less at receptacles far from the panel.

Read more: 110 Volt Vs. 120 Volt | eHow.com http://www.ehow.com/info_8044761_110-volt-vs-120-volt.html#ixzz2LUNKyqnb

Alright yeah I get it no more then 2 600s

So to utilize 4 600s though I could run one 4x8 for the 12 hrs during the day and another 4x8 the other 12 hrs kinda like flip flopping it

doubletake said:

Alright yeah I get it no more then 2 600s

So to utilize 4 600s though I could run one 4x8 for the 12 hrs during the day and another 4x8 the other 12 hrs kinda like flip flopping it

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ya if your gonna have 2 flower rooms running
or you could just run 2 on 1 breaker and the other 2 on another breaker.