Are Mager SSR's 'zero-crossing'

Discussion of the physical aspects
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clearwaterbrewer
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Are Mager SSR's 'zero-crossing'

Post by clearwaterbrewer »

I read a few places that nearly all modern SSR's are 'zero crossing', that is they only switch on when the AC is crossing 0 Volts.

Are the Mager ones sold here and elsewhere like this?

here is one reference talking about it:
http://forums.netduino.com/index.php?/t ... gital-pot/

4th item in thread "virtually ALL solid-state relays (SSR) have built-in zero-crossing circuits in them which prevents phase-angle control"
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ECC
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Re: Are Mager SSR's 'zero-crossing'

Post by ECC »

Yes they are. I had to contact the supplier to verify, but they are indeed all zero cross SSR's.
Hi,thanks for your mail.
Yes,it's the zero crossing for SSR which you purchased.The zero crossing is in common use.We also have the random for SSR,but it's not used.It need to order to make.
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clearwaterbrewer
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Re: Are Mager SSR's 'zero-crossing'

Post by clearwaterbrewer »

Thanks.. Searching posts of brew and other sites, there were a few old timers out there talking bad about PWM because it would turn on the SSR in the middle of the sine wave and causing everything from poor efficiency to damage to components to global warming.... they were saying you needed phase angle controllers.. Now I know the global warming part is due to their own hot air ;-)

-mike
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