Contactor, SSR. Relay,PID ?????

[hurricaneracing]

Ok I have been using an oven controll to run my oven for about 2 years now and it finally quit. So I have been reading the many threads on oven building but it seems I am now more confused than when I started.

I am looking to upgrade from the oven controls. I have 2 burners that are about 22 ohms each. running on 220. What would the best setup be.

[ed_denu]

Your elements then on 240 volts are going to draw around 11 amps each(2600 watts), so I would look for a 40 amp ssr or contactor. Either would work. There are many pids available from the low end to the higher end ramp/soak models.

It mostly comes down to what you want to spend and/or what type control you desire. Just be sure to match the pid to the ssr/contactor input voltage requirements.

[hurricaneracing]

Low end to high end pid? I assume you are talking about quality...What does the soak refer to? What is the difference between a SSR and contactor.

Sorry for the questions but I really want to buy the right stuff the first time.

[ed_denu]

Low end to high end pid? I assume you are talking about quality...Yes What does the soak refer to? Ramp is the ability to move to a set point in increments, soak is the ability to remain at a temp for a given period. What is the difference between a SSR and contactor. One is electromechanical, the other is solid state, with no moving parts.

Sorry for the questions but I really want to buy the right stuff the first time.

see text above

[tedsfab]

personally i like the contactor beucase it can fail safe . where as a ssr will most of the time fail short and may take out other items . im not saying it wont with a contactor but its less likely . also with a contactor you dont have a hot leg going threw the heater all the time .

[4x4fab]

By soak he means that you can program the controller to run a cycle.
You would have
"ramp" where you could tell the controller to advance at Whatever degrees per hour/min.
"Soak, AKA Dwell" where you program how long to stay at a certain temp.