Usinf Stc 1000 with HLT

[morrillt]

So i have a 120 bolt 2000watt element HLT

Which uses something in the neighborhood of 16 amps.

So i hooked it up to my HLT, and the thing started getting REALLLY HOT, so i unplugged it and proceeded to do the on and off manually using the STC as a probe only.

Can i let this get super hot? Or is it not rated for such amperage?

Best,
Todd

 

[LovesIPA]

From http://www.amazon.com/dp/B00862G3TQ/?tag=skimlinks_replacement-20 I get an amperage rating of 10A.

So it sounds like a good way to start a fire.

I'm kind of surprised the unit doesn't have a built-in circuit breaker, to prevent people from doing just what you did.

 

[Brumateur]

Yes you can't handle more than 1200Watt load with bare STC. To control 2000Watt element you need to wire additional 20+ amp rated mechanical relay or 25A SSR.

 

[sennister]

I agree, use the STC to trigger a larger relay. The STC can take a load, just not one that big.

 

[ChuckO]

If you are adept at electronics soldering you can remove the relays from an STC1000 and run the control wire traces directly to the screw terminals. You can then power any amperage SSR that you want. You eliminate the relays and don't need external power to trigger the external SSR's. Someone has a thread here about doing this, but I can't seem to find it right now.

 

[adam01]

I have not tried the STC-1000. But you will want to see how fast it responds to the target temperature being reached. You will probably overshoot the set temperature a bit.

I used an Auber PID for mine and it usually overshoots 1 deg (120-170F).

 

[Cardinal_Vintage]

I have not tried the STC-1000. But you will want to see how fast it responds to the target temperature being reached. You will probably overshoot the set temperature a bit.

I used an Auber PID for mine and it usually overshoots 1 deg (120-170F).

Does the Auber have a relay that will handle that amperage or do you need to wire one into the circuit?

 

[adam01]

The PID has no relay. It is setup to control a solid state relay (SSR) that you can get
to control up to 40a.