Search found 4 matches

by Baxsie
Sun Apr 14, 2019 3:47 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 33297

Re: SSR question

In my diagram, I showed the circuit split because the original poster said that they had 40amp SSR but did not feel that there was enough margin running a 36 amp load on the 40 amp SSR. In concept at least, running 18 amps instead of 36 amps would keep the SSR slightly cooler and thus increase its r...
by Baxsie
Fri Apr 12, 2019 11:44 pm
Forum: Techniques and Tools
Topic: kiln controller question
Replies: 15
Views: 25345

Re: kiln controller question

The important thing about thermocouple leads is that you do not splice them. Thermocouple wire has one wire made of one kind of metal and the other made of a different metal. (ref https://en.wikipedia.org/wiki/Thermocouple ) A thermocouple measures the temperature by the change in voltage generated ...
by Baxsie
Fri Apr 12, 2019 10:05 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 33297

Re: SSR question

If the SSRs are heat-sinked properly and used within their rating, then their reliability should be near infinite -- certainly orders of magnitude more reliable than a mechanical relay. ref: https://media.digikey.com/pdf/Other%20Related%20Documents/Omron%20Other%20Doc/SSR%20Design%20Considerations.p...
by Baxsie
Fri Apr 12, 2019 6:36 pm
Forum: Techniques and Tools
Topic: SSR question
Replies: 17
Views: 33297

Re: SSR question

There is some good information on paralleling Solid State Relays (SSR) here: http://www.crydom.com/en/tech/newsletters/solid%20statements%20-%20using%20ssrs%20in%20parallel%20and-or%20series.pdf basically, do not parallel SSR . A properly installed 40-amp SSR will certainly handle a 36 amp load. The...