relays for light controller..... good sources???? - Growroom Lighting - International Cannagraphic Magazine Forums

mybeans420 · 07-16-2006, 11:06 AM

How goes it all

I was just wondering if anyone who has built thier own 240v light controller could post thier source for the relays they used?

this is what I'm referring to.....
https://www.hydroponics.net/learn/gro...controller.asp

I know they sell them on that site but was just wondering if anyone knew where I could get a better deal on them.

also, the exact specs would be helpful in my search.

Thanks,
Beans

MTF-Sandman · 07-16-2006, 01:11 PM

What's the total wattage of the lights that you need it to take care of?

mybeans420 · 07-16-2006, 03:47 PM

Hey MTF-Sandman,

I want it to be capaple of running up to 8 - 600s. At 2.75A each I would need 30A at least. Btw, I'm planning on going with electronic ballasts (hence the 2.75A).

If I'm able to find them locally what would be a more common use for them?

Thanks,
Beans

MTF-Sandman · 07-16-2006, 04:10 PM

That's actually not a bad price for a 240v/30a DPST NO relay with a 120v coil...if you have a local electrical supply place, you might try them. The ones around here don't ask why, but if your's does just tell them it's for a large heater in your workshop that you want to put on a thermostat.

Edit: They are also used in hot tubs to control the heater...

stonewall · 07-16-2006, 04:46 PM

You should be able to get a 2 pole, 30 amp full load inductive rated, definite purpose contactor for about 10-15 dollars at your local electrical or hvac supply house.

The power relay in your link is a little bit over kill for simple on/off switching, imho.

toke it easy. :smokin:

mybeans420 · 07-16-2006, 04:50 PM

Quote:

Originally Posted by MTF-Sandman

That's actually not a bad price for a 240v/30a DPST NO relay with a 120v coil...if you have a local electrical supply place, you might try them. The ones around here don't ask why, but if your's does just tell them it's for a large heater in your workshop that you want to put on a thermostat.

Edit: They are also used in hot tubs to control the heater...

DPST = double pole single throw, correct?

Is "NO" referring to "normally open"?

Thanks again,
Beans

stonewall · 07-16-2006, 05:34 PM

yep

MTF-Sandman · 07-16-2006, 05:37 PM

Quote:

Originally Posted by mybeans420

DPST = double pole single throw, correct?

Is "NO" referring to "normally open"?

Thanks again,
Beans

Correct x2

Quote:

Originally Posted by stonewall

You should be able to get a 2 pole, 30 amp full load inductive rated, definite purpose contactor for about 10-15 dollars at your local electrical or hvac supply house.

The power relay in your link is a little bit over kill for simple on/off switching, imho.

I'm curious what the differences are between the relay you suggested and the one in the link...I'm definitely not a techie regarding things like this, but I'm willing to learn

stonewall · 07-16-2006, 06:46 PM

Not much difference really Sandman. Different construction with the power relay being a little more robust, made to cycle more often than the contactor.

If you were willing to spend the little extra, I wouldn't discourage you from getting the power relay instead of the contactor. But the contactor is more than capable of doing the job of on/off switching a couple of times a day. the contactor is probably easier to locate locally as well.

toke it easy :smokin:

wantaknow · 07-16-2006, 06:56 PM

where can i get a flip flop that will handle 4k ?

07-16-2006, 11:06 AM	#1
mybeans420 resident slackass Join Date: Feb 2004 Location: somewhere that has a pool table Posts: 1,053	relays for light controller..... good sources???? How goes it all I was just wondering if anyone who has built thier own 240v light controller could post thier source for the relays they used? this is what I'm referring to..... https://www.hydroponics.net/learn/gro...controller.asp I know they sell them on that site but was just wondering if anyone knew where I could get a better deal on them. also, the exact specs would be helpful in my search. Thanks, Beans __________________ "POWER TO THE PEACEFUL" micheal franti LET LOVE GUIDE YOU LEAVE YOUR CLOWNSHOES AND YOUR NEGATIVITY AT THE DOOR PLEASE.. THANK YOU "The prestige of government has undoubtedly been lowered considerably by the prohibition law. For nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced. It is an open secret that the dangerous increase of crime in this country is closely connected with this." Albert Einstein, "My First Impression of the U.S.A.", 1921 "Prohibition will work great injury to the cause of temperance. It is a species of intemperance within itself, for it goes beyond the bounds of reason in that it attempts to control a man's appetite by legislation, and makes a crime out of things that are not crimes. A Prohibition law strikes a blow at the very principles upon which our government was founded." Abraham Lincoln, U.S. President. 18 Dec. 1840 PLEASE don't PM me for seeds or cuts,.. Thank you
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07-16-2006, 03:47 PM	#3
mybeans420 resident slackass Join Date: Feb 2004 Location: somewhere that has a pool table Posts: 1,053	Hey MTF-Sandman, I want it to be capaple of running up to 8 - 600s. At 2.75A each I would need 30A at least. Btw, I'm planning on going with electronic ballasts (hence the 2.75A). If I'm able to find them locally what would be a more common use for them? Thanks, Beans __________________ "POWER TO THE PEACEFUL" micheal franti LET LOVE GUIDE YOU LEAVE YOUR CLOWNSHOES AND YOUR NEGATIVITY AT THE DOOR PLEASE.. THANK YOU "The prestige of government has undoubtedly been lowered considerably by the prohibition law. For nothing is more destructive of respect for the government and the law of the land than passing laws which cannot be enforced. It is an open secret that the dangerous increase of crime in this country is closely connected with this." Albert Einstein, "My First Impression of the U.S.A.", 1921 "Prohibition will work great injury to the cause of temperance. It is a species of intemperance within itself, for it goes beyond the bounds of reason in that it attempts to control a man's appetite by legislation, and makes a crime out of things that are not crimes. A Prohibition law strikes a blow at the very principles upon which our government was founded." Abraham Lincoln, U.S. President. 18 Dec. 1840 PLEASE don't PM me for seeds or cuts,.. Thank you
	Quote

07-16-2006, 04:10 PM	#4
MTF-Sandman OG Refugee Join Date: Jul 2005 Location: Over yonder... Posts: 2,001	That's actually not a bad price for a 240v/30a DPST NO relay with a 120v coil...if you have a local electrical supply place, you might try them. The ones around here don't ask why, but if your's does just tell them it's for a large heater in your workshop that you want to put on a thermostat. Edit: They are also used in hot tubs to control the heater... Last edited by MTF-Sandman; 07-16-2006 at 04:21 PM..
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07-16-2006, 06:56 PM	#10
wantaknow ruger 500 Join Date: Apr 2004 Location: usa Posts: 2,100	where can i get a flip flop that will handle 4k ? __________________ Free leonard peltier now,
	Quote

07-16-2006, 01:11 PM	#2
MTF-Sandman OG Refugee Join Date: Jul 2005 Location: Over yonder... Posts: 2,001	What's the total wattage of the lights that you need it to take care of?
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07-16-2006, 04:46 PM	#5
stonewall Banned Join Date: Mar 2006 Location: occupied southland Posts: 200	You should be able to get a 2 pole, 30 amp full load inductive rated, definite purpose contactor for about 10-15 dollars at your local electrical or hvac supply house. The power relay in your link is a little bit over kill for simple on/off switching, imho. toke it easy. :smokin:
	Quote

07-16-2006, 05:34 PM	#7
stonewall Banned Join Date: Mar 2006 Location: occupied southland Posts: 200	yep
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07-16-2006, 06:46 PM	#9
stonewall Banned Join Date: Mar 2006 Location: occupied southland Posts: 200	Not much difference really Sandman. Different construction with the power relay being a little more robust, made to cycle more often than the contactor. If you were willing to spend the little extra, I wouldn't discourage you from getting the power relay instead of the contactor. But the contactor is more than capable of doing the job of on/off switching a couple of times a day. the contactor is probably easier to locate locally as well. toke it easy :smokin:
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