You recommended the 120v contactor but I am wiring this for 220v I noticed you mentioned to someone else that this was correct im just confirming and inquiring why.
The Contactor can switch up to 40 amps and up to 600 volts. The coil in the contactor runs on 120 volts. The coil receives a signal from the PID (120v) and is what allows the power to pass through the contactor or not. The way I set it up was running 1 leg of the 240v which is 120v to run certain things such as the PIDs, blower, and the coil for the contactor. This is why you supply a 4 wire 240v plug for the smoker. The 4th wire is a neutral so you can breakdown each leg of the 240v to 120v to run certain things.
if I am using a 40a contactor should I also be using a 40a in line fuse or is that just the max load that the
controller should never see?
No. The 40 amp rating on the contactor is the maximum rating it is capable of switching. To calculate the size of fuse you want you want to calculate the maximum load and size the fuses so the load represents under 80% of the fuse capacity.
is the button to turn on the high limit controller or were you using this for your fan?
Yes. To power up the system you turn the toggle switch on which turns on the high limit PID. To activate the rest of the system you push and hold the Set Button on the high limit PID which engages the contactor and the rest of the smoker comes to life including the blower.
What oven elements would recommend for this size cabinet.
My preference is oven elements simply because they are real easy to find and reasonably priced. The biggest thing you want to take into account is grease management so you limit the risk of having a grease fire in the smoker.
How did u get to be such an awesome Smoker Guru?
Thanks for the compliment but there are plenty of true smoking guru's around the forum here. I'm simply a hands on type of guy and really like to tinker with things... You know... make a better mouse trap type of thing.
and did u wire a male outlet on the back for the smoke generator?
I used the regular cord for the smoke generator. I wired a regular outlet on the outside of the smoker to plug the generator into. The outlet was powered by 1 leg (120) of the 240v. Again, this is why you supply a 4 wire 240v plug for the smoker. The 4th wire is a neutral so you can breakdown each leg of the 240v to 120v to run certain things.