More SSR questions

[Brewing Clamper]

To all you electric bk having folks... is this a good buy? I think it's time to control bk instead of having it go full blast...

 

[Brewmoor]

Seems like a good deal. May take two weeks or more to get it.

I ordered mine from ebay. Similar deal. I don't need them fast so it was worth it to me for 9.99 a piece. I needed 4 of them. Shipping from china can take some time.

Edit: Sorry took a closer look at it. If I am not mistaken this is for a DC SSR. You would want AC. Make sure before you buy

 

[Brewing Clamper]

Yeah, that's what I was thinking, I won't be able to get to the project until sometime after mid Feb anyway. I was going to build a simple PWM to control the SS.R to power my BK.

 

[snowrs]

Yep verify PN you may be getting a DC control voltage wich would suck

 

[Brewing Clamper]

Oh snap! Good catch snowrs! Thanks! This is the one I meant!

 

[Hermit]

Yep verify PN you may be getting a DC control voltage wich would suck

Why would DC suck? I'm thinking of building a simple PWM circuit to control a brew kettle and it would be DC anyhow.

 

[Brewing Clamper]

Well, 12V dc to the SSR would switch it on and off, but the SSR needs to be able to handle the 240V AC to the 4500 or 5500 watt element.

 

[Hermit]

Well, 12V dc to the SSR would switch it on and off, but the SSR needs to be able to handle the 240V AC to the 4500 or 5500 watt element.

OK. That spec sheet may as well all be written in Chinese I guess. It gives one model number, shows two pictures and has SOME of the spec listed as if they might be separate units. Price is good but I guess I wouldn't buy unless I saw a better spec sheet so that I knew exactly what I was getting. I have a friend that has one I could get for free but the inputs is AC only....... I was going to make a few PMW circuits up and thought it would be just as easy to do a 'six pack' of them on one board and cut it up.

 

[snowrs]

The voltage he is controlling ie his load will be 240VAC the relay was DC no go and magic smoke would ensue

Edit: Already stated, yeah spec sheets can be a PIA to read and every manufacturer is different, I have smoked my fair share of thingsbecause I misread spec sheets, PNP does not like NPN in the I/O world. But it is half the fun

 

[samc]

Search ebay for Crydom SSR. Similar pricing, buying from US sellers. Good luck with getting any satisfaction from offshore sellers of small priced items. Been there and won't do that again.

 

[Brewmoor]

The spec sheet is actually showing the specs for a whole line of SSRs. The model numbers are at the top. The title says DC so DO NOT BUY IT.

This is the one you want:

http://cgi.ebay.com/Solid-State-Rel...emQQptZLH_DefaultDomain_0?hash=item2a03666f8d

and yes you want DC control voltage AC load voltage