... and wire, PTC heating element with shell, PTC air heater, PTC for hair straightener, PTC for curler, PTC with resin coating, PTC for water heater, refering to ... 260°C. 3. Notice in appliance.1) The surface temperature on PTC can be controlled by itself, so that control ... Very high reliable, over temperature was impossible. 7) The surface temperature increases (or decreases) about 8°C, when supplied ...