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of high-performance wire,
cable and tubing since 1959
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HPN combines the magnet wire insulation characteristics of Heavy Poly with the advantages of a nylon topcoat. With the nylon, HPN is still readily solderable, yet the solvent resistance and thermal stability of the insulation is excellent. In addition, the nylon provides improvement in the windability and tolerates more severe winding operations. HPN is an excellent choice for automatic winding machines.

Typical Applications

HPN has excellent solderability and the 130/155°C thermal class. It has wide use in coils and small motors. It is not recommended where severe overloads are experienced.
  • Appliance motors
  • Relays
  • Timer and clock coils
  • Encapsulated coils
  • Guitar Pickups
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Item #

AWG Size

Nom. Bare Wire Diameter

Min. Increase in Diameter Due to Film Coating

Max. Overall Diameter of Film-Coated Wire

MWRD10HPN N/A 10 N/A 0.1019 in2.588 mm N/A 0.0031 in0.079 mm N/A 0.1061 in2.695 mm
MWRD11HPN N/A 11 N/A 0.0907 in2.304 mm N/A 0.0030 in0.076 mm N/A 0.0948 in2.408 mm
MWRD12HPN N/A 12 N/A 0.0808 in2.052 mm N/A 0.0029 in0.074 mm N/A 0.0847 in2.151 mm
MWRD13HPN N/A 13 N/A 0.0720 in1.829 mm N/A 0.0028 in0.071 mm N/A 0.0757 in1.923 mm
MWRD14HPN N/A 14 N/A 0.0641 in1.628 mm N/A 0.0032 in0.081 mm N/A 0.0682 in1.732 mm
MWRD15HPN N/A 15 N/A 0.0571 in1.450 mm N/A 0.0030 in0.076 mm N/A 0.0609 in1.547 mm
MWRD16HPN N/A 16 N/A 0.0508 in1.290 mm N/A 0.0029 in0.074 mm N/A 0.0545 in1.384 mm
MWRD17HPN N/A 17 N/A 0.0453 in1.151 mm N/A 0.0028 in0.071 mm N/A 0.0488 in1.240 mm
MWRD18HPN N/A 18 N/A 0.0403 in1.024 mm N/A 0.0026 in0.066 mm N/A 0.0437 in1.110 mm
MWRD19HPN N/A 19 N/A 0.0359 in0.912 mm N/A 0.0025 in0.064 mm N/A 0.0391 in0.993 mm
MWRD20HPN N/A 20 N/A 0.0320 in0.813 mm N/A 0.0023 in0.058 mm N/A 0.0351 in0.892 mm
MWRD21HPN N/A 21 N/A 0.0285 in0.724 mm N/A 0.0022 in0.056 mm N/A 0.0314 in0.798 mm
MWRD22HPN N/A 22 N/A 0.0253 in0.643 mm N/A 0.0021 in0.053 mm N/A 0.0281 in0.714 mm
MWRD225HPN N/A 22-1/2 N/A 0.0239 in0.607 mm N/A 0.0021 in0.053 mm N/A 0.0266 in0.676 mm
MWRD24HPN N/A 24 N/A 0.0201 in0.511 mm N/A 0.0019 in0.048 mm N/A 0.0227 in0.577 mm
MWRD245HPN N/A 24-1/2 N/A 0.0190 in0.483 mm N/A 0.0019 in0.048 mm N/A 0.0216 in0.549 mm
MWRD25HPN N/A 25 N/A 0.0179 in0.455 mm N/A 0.0018 in0.046 mm N/A 0.0203 in0.516 mm
MWRD26HPN N/A 26 N/A 0.0159 in0.404 mm N/A 0.0017 in0.043 mm N/A 0.0182 in0.462 mm
MWRD265HPN N/A 26-1/2 N/A 0.0150 in0.381 mm N/A 0.0017 in0.043 mm N/A 0.0173 in0.439 mm
MWRD27HPN N/A 27 N/A 0.0142 in0.361 mm N/A 0.0016 in0.041 mm N/A 0.0164 in0.417 mm
MWRD275HPN N/A 27-1/2 N/A 0.0134 in0.340 mm N/A 0.0016 in0.041 mm N/A 0.0156 in0.396 mm
MWRD28HPN N/A 28 N/A 0.0126 in0.320 mm N/A 0.0016 in0.041 mm N/A 0.0147 in0.373 mm
MWRD285HPN N/A 28-1/2 N/A 0.0119 in0.302 mm N/A 0.0016 in0.041 mm N/A 0.0140 in0.356 mm
MWRD29HPN N/A 29 N/A 0.0113 in0.287 mm N/A 0.0015 in0.038 mm N/A 0.0133 in0.338 mm
MWRD30HPN N/A 30 N/A 0.0100 in0.254 mm N/A 0.0014 in0.036 mm N/A 0.0119 in0.302 mm
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