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UL file #E247574
Thermistor-type Devices Certified for UL/Canada - Component
The devices covered under this category are incomplete in certain constructional features or restricted in performance capabilities and are intended for use as components of complete equipment submitted for investigation rather than for direct separate installation in the field. THE FINAL ACCEPTANCE OF THE COMPONENT IS DEPENDENT UPON ITS INSTALLATION AND USE IN COMPLETE EQUIPMENT SUBMITTED TO UNDERWRITERS LABORATORIES INC.
"USE"
This category covers thermistor type devices, which exhibit large changes in resistivity corresponding to relatively small changes of temperature. These devices incorporate inorganic or polymeric elements that have positive temperature coefficient (PTC) and negative temperature coefficient (NTC) characteristics. They are intended for use as current limiters, self-limiting heaters or sensors. These products may be applied in electronic circuits, motor windings, transformer windings, heating appliances, and the like.
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