Energy-saving "Auto Trace Heater" with power-saving features.

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last updated：Oct 21, 2025

西都電機

An auto-trace freeze prevention heater capable of a wide range from 65℃ to 235℃! It enables reliable safety and process insulation.

Even without using a thermostat, it can prevent overheating or burning, providing reliable and safe freeze protection and process heating. This is an auto-trace heater that can be cut to the required length on-site. 【Self-regulating Heater Product List】 ■ Up to 65°C - Self-regulating auto-trace heater: BTV1 (100V) - Self-regulating auto-trace heater: BTV2 (200V) ■ Up to 110°C - Self-regulating auto-trace heater: QTV1 (100V) - Self-regulating auto-trace heater: QTV2 (200V) ■ Up to 120°C - Self-regulating auto-trace heater: XTV1 (100V) - Self-regulating auto-trace heater: XTV2 (200V) ■ Up to 150°C - Self-regulating auto-trace heater: KTV1 (100V) - Self-regulating auto-trace heater: KTV2 (200V) ■ Up to 235°C - Self-regulating auto-trace heater: VPL1 (100V) - Self-regulating auto-trace heater: VPL2 (200V)

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basic information

**Principle of Self-Regulation** The resistive element, composed of a special blend of polymer and conductive carbon, forms countless parallel electrical paths along the entire length of the two conductors. When the element heats up, this core expands slightly. This increases electrical resistance and reduces the output of the heater. When the core temperature decreases, it contracts slightly, reducing electrical resistance and increasing the heater's output. This technology allows the auto-trace heater to continuously respond to changes in temperature. In this way, the principle of the auto-trace heater is suitable for energy conservation.