Author Topic: How long of constant on can the SSR4 take?  (Read 1739 times)

Offline jwilliams31

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How long of constant on can the SSR4 take?
« on: November 10, 2009, »
Ok, a typical show probably only lasts 5 - 10 minutes (at least a beginner's show, like mine...).  If the show cycles every hour, then I would figure that all lights would be on at full power for the remaining 50 - 55 minutes.

Will the SSR4, more specifically, the triacs, be able to handle that without overheating?

I plan on adding heat sinks, but I wanted to confirm that I won't burn anything up if I leave the lights on constantly for a long period of time.

One more thought that I wanted to run by the experts.  I am using the recommended case from yourbroadbandstore.com.  I know that the case is kind of small and, unmodified, there really isn't any air flow.  Would it make sense to cut a slot in the case and maybe extend a heatsink outside of the case (and then seal it with silicone so water doesn't get in)?

Thank you.

Jason
« Last Edit: November 10, 2009, by jwilliams31 »
Einstein once said: "There are two things that are infinite; the universe and human stupidity. And, I'm not too sure about the universe."

Offline tbone321

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Re: How long of constant on can the SSR4 take?
« Reply #1 on: November 10, 2009, »
That depends on how much current you are pullling on each channel.  IIRC, the SSR4 can handle 1 amp continous per channel with no heat sink and 2 amps per channel with a reaonable heat sink.  Unless you are using LED's, why would you keep the lights on at full power between shows?  I would set the static period to around 60% which should save you some electricity and extend your bulb life.  It will also add more pop to your show when it does run and your lights get brigher.
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Offline jwilliams31

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Re: How long of constant on can the SSR4 take?
« Reply #2 on: November 10, 2009, »
I could do that.  I didn't really think about dimming the lights, I guess that would make more sense.

If I can at all help it, I have no intention of going over 2A per channel.

I just wanted to make sure I won't release the blue smoke genie by leaving the lights on statically for an extended period of time.

Thanks.

Jason
Einstein once said: "There are two things that are infinite; the universe and human stupidity. And, I'm not too sure about the universe."

Offline REM

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Re: How long of constant on can the SSR4 take?
« Reply #3 on: November 13, 2009, »
You can also run a background sequence in between shows using simple effects to get you some "off time". Might save you some $ too on your electric bill.

Ron