Excellent tips from Bill, as usual (thanks Bill!).
Yeah, you can use DC on an AC heater cartridge. As Bill stated, figure out the power that you intend to run it at, and check the max current rating of the heater, so that you're still running it safely. I didn't mention the voltage simply because I assumed that you were going to use DC and a relatively moderate power level, so you wouldn't be anywhere near 120 Vdc, which would be the max voltage at which you could safely run the heater.
Just pick a cartridge with a wattage rating a bit above your intended power run, with the other advice above.
I also didn't mention the other operating limit, temperature, because it's in the 400 dec C and above (far above, sometimes), and really doesn't apply here, unless you goof up (never run a heater without a cooling solution, doing so would damage it, and alter its properties, if it doesn't kill it, colateral damage aside).
McMasters.com page 454.
|