Compare The Difference Between The Two Heating

The difference between Constant wattage and Self regulating heating cable

Self-regulating heating cable and constant wattage heating cable vary both in terms of construction and performance.

Advantage of Self-regulating heating cable: Won’t overheat, can be cut short

Self-regulating heating cable output varies depending upon the temperature, due to microscopic expansion and contraction of the polymer. The circuit of which is in parallel. It’s energy-efficient for it has the feature of reducing its power output as temperature increases and conversely at lower temperatures, the power is increased. However, it has a limit in the length of a single self-regulating heating cable to prevent cable broken in a high start-up current. It is unsuitable for large applications requiring a single long circuit.

Advantage of Constant wattage heating cable: Durable and Economical

Constant wattage heating cable provides a constant heat output, generally not affected by varying ambient temperatures. Specifically, constant wattage heating cable is divided as parallel cable and series cable. The cable can’t be overlapped for it has a risk of overheating. However, a single circuit of constant heating cable can be quite long for there is no problem of start-up current. More significantly, there is no voltage drop in a constant wattage series heating cable. It works well in large applications that require for one lengthy circuit.

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