Quiet contactor for a stealth room?

since1991

Well-Known Member
Hi guys and gals I’m trying to keep my grow room as quiet as possible. The only problem is when lights turn on and off you can hear the click of the furnas double pole contactor 110v coil. Can someone point me out to a quiet contactor.
I’m pulling around 500 - 550 watts @ 220v
Thanks happy growing
View attachment 4048417
Your talking about a contactor relay box for all the lamps right? Iam gonna read this entire thread but I too have looked in the past for a more quiet relay. When the trigger cord/timer kicks on that relay makes a very loud "POP" sound. Not now (its not a big deal) but in the past at another spot I needed it quiet. Got hold of electricians and mu local electric store and they said they all do this. Annoying as hell. And not stealthy at all. If this is what your talking about.
 

since1991

Well-Known Member
Hi guys and gals I’m trying to keep my grow room as quiet as possible. The only problem is when lights turn on and off you can hear the click of the furnas double pole contactor 110v coil. Can someone point me out to a quiet contactor.
I’m pulling around 500 - 550 watts @ 220v
Thanks happy growing
View attachment 4048417
Nice clean stealthy room btw. I like those sleek COBS and that mini split. Sweet little system.
 

since1991

Well-Known Member
Forgive my ignorance but what does it do, is it for the lighting or the AC?
We don't have AC typically over here but we plug our lights into a contactor to stop the surge tripping the fuses or blowing the timers. Is that what your talking about? If so both mine came from hydro shops and don't make a sound, one can handle 2kw and cost about £10( its just a bulky plug with 1 socket and built in timer) the other can handle 3kw and has an extension attached for 4 plugs and cost about £25.
If I'm off track then ignore my comment, otherwise check out any hydro shop.
Way off topic but can I ask you European growers..is it so generally cold over there that you guys dont need air cooled/ducted hoods (because from photos of Europe growrooms you definitely dont use them nor 1000 watt hid lamps - just sixers) and from photos I never see air conditioners (mini splits or otherwise)? Even your bigger rooms packed loaded full of 600 watt sodium lamps - I never see an air conditioner in the photo or hear of you guys using them. How can that be? It cant be that much cooler generally outside than us Yanks in America. Here..even with air cooled hoods with ducting and fans getting rid of most of the heat...after so many lamps/wattage your still probably going to need an air conditioner of some sort..especially from June till about September. Just about any state in the U.S. And whats with those big box looking things always mounted to your ceilings? Air exchange/handlers? Sorry OP for jacking your thread on loud relay clicking as well. I apologize and if any of you European growers wanna chat on how you guys generally run your systems (i have an idea but not specific details - we can chat or start a thread). Carry on. And again OP...Iam sorry to derail your thread.
 
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Mont@n@

Well-Known Member
Your talking about a contactor relay box for all the lamps right? Iam gonna read this entire thread but I too have looked in the past for a more quiet relay. When the trigger cord/timer kicks on that relay makes a very loud "POP" sound. Not now (its not a big deal) but in the past at another spot I needed it quiet. Got hold of electricians and mu local electric store and they said they all do this. Annoying as hell. And not stealthy at all. If this is what your talking about.
Yes. I know that freaking pop is loud as hell. My grow room is in my garage and I have a chest freezer for beer and meat. I do a lot of bbq and I’m pretty sure one of these days one of my friends will notice that pop. everything is silent except that contactor.

Now I’m building a box controller for those cobs
Thanks
66388E6A-6C0A-4DD5-9ED9-78D55E8F4EDB.jpeg
 

since1991

Well-Known Member
Yes. I know that freaking pop is loud as hell. My grow room is in my garage and I have a chest freezer for beer and meat. I do a lot of bbq and I’m pretty sure one of these days one of my friends will notice that pop. everything is silent except that contactor.

Now I’m building a box controller for those cobs
Thanks
View attachment 4049292
Is that a home made contactor relay? If it is..it looks pro. Nice. Ive always just bought the way overpriced ones from the grow shops. My electrician friend awhile back was over at another location and I opened up my Autopilot 8000 watt relay for him..amd he said "how much did you pay for this"?? I told him and he just laughed. Amd he also said they could of used much better components here and there but said it would suffice. I havent opened one up nor bought one but have grower buddys that own them... ive heard the boxes by PowerBox make really good ones. All metal casing and i think made in America. But they are pricey. If I ever build another or bigger room..I will look into building my own. They look simple enough and I can build it to my quality/standards.
 
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Mont@n@

Well-Known Member
Is that a home made contactor relay? If it is..it looks pro. Nice. Ive always just bought the way overpriced ones from the grow shops. My electrician friend awhile back was over at another location and I opened up my Autopilot 8000 watt relay for him..amd he said "how much did you pay for this"?? I told him and he just laughed. Amd he also said they could of used much better components here and there but said it would suffice. I havent opened one up nor bought one but have grower buddys that own them... ive heard the boxes by PowerBox make really good ones. All metal casing and i think made in America. But they are pricey. If I ever build another or bigger room..I will look into building my own. They look simple enough and I can build it to my quality/standards.
Thanks but no I was testing that contactor before I put it in one of those grey plastic box and wire everything with the trigger wire but unfortunately is loud as hell for my stealth room.

Thanks and happy growing
 

coreywebster

Well-Known Member
Way off topic but can I ask you European growers..is it so generally cold over there that you guys dont need air cooled/ducted hoods (because from photos of Europe growrooms you definitely dont use them nor 1000 watt hid lamps - just sixers) and from photos I never see air conditioners (mini splits or otherwise)? Even your bigger rooms packed loaded full of 600 watt sodium lamps - I never see an air conditioner in the photo or hear of you guys using them. How can that be? It cant be that much cooler generally outside than us Yanks in America. Here..even with air cooled hoods with ducting and fans getting rid of most of the heat...after so many lamps/wattage your still probably going to need an air conditioner of some sort..especially from June till about September. Just about any state in the U.S. And whats with those big box looking things always mounted to your ceilings? Air exchange/handlers? Sorry OP for jacking your thread on loud relay clicking as well. I apologize and if any of you European growers wanna chat on how you guys generally run your systems (i have an idea but not specific details - we can chat or start a thread). Carry on. And again OP...Iam sorry to derail your thread.
Yeah we do run air cooled hoods, I know I used to before switching to LED, but probably not as common, of the 10ish growers I know in the real world here I guess maybe 2 of those use air cooling. We generally don't have AC built in to houses although possibly they are more common in posh hotels.
Its cooler in general here but obviously the USA is a big place with many varied climates. Not much variation here, its about 3-4 degrees warmer on the south coast year round that the north east.
The UK growing market is made up of mostly small scale growers, I think a lot of the bigger grow ops are short term and not likely to share any sort of pics online, lots of them have Chinese illegal immigrants who live on site and are the ones who get caught in the raids while the guys behind the scene are rarely caught meaning they aren't at risk and mostly don't care about the product because outside the euro growers on this forum the standards are very low. People can sell wet poorly grown weed here for £200 a oz because folks will still buy it unfortunately.
Back in the 90s all we had were 1000w and I'm not sure if filters existed or if they were just too expensive back then, but I never saw anyone using them. Then when 600s came out with the increase in efficiency and more importantly easier to manage heat wise they took off and the popularity made them cheap as chips. 1000w bulbs or ballasts still cost a fair bit but a 600w ballast costs as little as £50 if you don't mind using magnetics, a 600 bulb can be picked up for as little as £10.
So as far as heat goes, pretty much anyone can set up a 600w set up and manage the heat, even when venting in the same room. Once you get into multi light set ups air cooling is a must in summer, but there are lots of people who just miss the summer months and crack on when it gets cold.

The average temp here in summer is 19degrees where the average in USA is 22degrees excluding Alaska and Hawaii.
:bigjoint:
 

bottletoke

Well-Known Member
Way off topic but can I ask you European growers..is it so generally cold over there that you guys dont need air cooled/ducted hoods (because from photos of Europe growrooms you definitely dont use them nor 1000 watt hid lamps - just sixers) and from photos I never see air conditioners (mini splits or otherwise)? Even your bigger rooms packed loaded full of 600 watt sodium lamps - I never see an air conditioner in the photo or hear of you guys using them. How can that be? It cant be that much cooler generally outside than us Yanks in America. Here..even with air cooled hoods with ducting and fans getting rid of most of the heat...after so many lamps/wattage your still probably going to need an air conditioner of some sort..especially from June till about September. Just about any state in the U.S. And whats with those big box looking things always mounted to your ceilings? Air exchange/handlers? Sorry OP for jacking your thread on loud relay clicking as well. I apologize and if any of you European growers wanna chat on .
Electricity costs a lot more over their, same with fuel so generators cant be a substitute.
 

Mont@n@

Well-Known Member
I got my TSR 10AA Relay in the mail today. These things are completely silent, that’s freaking awesome.

Here are the few models out there for others looking for the same device like me.

Hoymk SSR3-A4810HK 10A
Hoymk SSR3-A4825HK 25A
Hoymk SSR3-A4840HK 40A

TSR-10AA 10Amps
TSR-25AA 25Amps
TSR-40AA 40Amps

Thanks and happy growing A65293E5-54A9-4C5D-B18C-9FF600650959.jpeg872A1A96-8682-4D35-9F1A-1D165AFA9253.jpeg
 
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