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This magnet wire with a copper core is appropriate for use in a variety of light duty applications from appliance motors to random wound coils. Its solderable insulation is composed of two layers; the base layer is polyurethane (comprising 85-90% of the insulation), and it has a thermal rating of H for meeting the National Electrical Manufacturer's Association (NEMA) MW 80-C standard for withstanding operating temperatures of 155 degrees C/311 F for up to 20,000 hours. The top layer is polyamide, or nylon (comprising 10-15% of the insulation), to help resist abrasions and solvents. The thickness of the insulation is consistent with the single poly nylon (SPN) class of insulation. This magnet wire with a copper core is suitable for a variety of general electromagnetic applications that do not involve high voltage or excessive temperatures, including appliance motors, relays, solenoids, clock coils, timer coils, encapsulated coils, toroid coils and random wound coils.
Magnet wire, which has a soft, malleable metal core (typically either aluminum or copper), is wound into coils to create electromagnets, and is insulated to prevent a short circuit as it generates a magnetic field. When wire is wound in a coil and electricity is passed through it, the electricity generates a magnetic field, in effect turning the coil of wire into a magnet. The more coils an electromagnet has, the stronger the magnetic field it generates. The various NEMA standards for magnet wire are designed to rate a magnet wire’s capacity to withstand heat generated by electrifying the coil. These standards rate a broad range of capacities, from light to heavy duty applications.
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