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  • Round Magnet Wire
HAPT is a multi-purpose film insulation which has a modified polyester basecoat and a polyamideimide topcoat. This combination provides a film insulation which has physical toughness, excellent dielectric properties, and superior chemical resistance to common solvents and refrigerants. Thermal properties of over 200°C qualify it for severe thermal overload applications. Compared to nylon overcoated polyester, the properties most improved are physical moisture, chemical and thermal resistance. HAPT is an extremely moisture resistant film insulation coating, suitable for many uses including open motor, high moisture application and hermetic applications. Other outstanding properties include thermal life, thermoplastic flow, burnout and heat shock.

This product is the standard of excellence for motor repair, maximum result, and minimum reject applications. It is impressive because it couples the extra advantages of high moisture resistance with ease of insertion.

Typical Applications
  • Fractional and integral horsepower motors (hermetic and open)
  • Automotive and power tool motors
  • General purpose motors
  • Dry-type transformers
  • Large coil applications - unvarnished, varnished or encapsulated
  • Electronic Coils
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Request Information Compare Items Search by Specification

Item #

AWG Size

Nom. Bare Wire Diameter

Min. Increase in Diameter Due to Film Coating

Max. Overall Diameter of Film-Coated Wire

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N/A 30 N/A 0.0100 in0.254 mm N/A 0.0014 in0.036 mm N/A 0.0119 in0.302 mm
N/A 29-1/2 N/A 0.0106 in0.269 mm N/A 0.0015 in0.038 mm N/A 0.0126 in0.320 mm
N/A 29 N/A 0.0113 in0.287 mm N/A 0.0015 in0.038 mm N/A 0.0133 in0.338 mm
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
N/A 28 N/A 0.0126 in0.320 mm N/A 0.0016 in0.041 mm N/A 0.0147 in0.373 mm
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
N/A 27 N/A 0.0142 in0.361 mm N/A 0.0016 in0.041 mm N/A 0.0164 in0.417 mm
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
N/A 26 N/A 0.0159 in0.404 mm N/A 0.0017 in0.043 mm N/A 0.0182 in0.462 mm
N/A 25-1/2 N/A 0.0169 in0.429 mm N/A 0.0018 in0.046 mm N/A 0.0193 in0.490 mm
N/A 25 N/A 0.0179 in0.455 mm N/A 0.0018 in0.046 mm N/A 0.0203 in0.516 mm
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
N/A 24 N/A 0.0201 in0.511 mm N/A 0.0019 in0.048 mm N/A 0.0227 in0.577 mm
N/A 23 N/A 0.0226 in0.574 mm N/A 0.0020 in0.051 mm N/A 0.0253 in0.643 mm
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
N/A 22 N/A 0.0253 in0.643 mm N/A 0.0021 in0.053 mm N/A 0.0281 in0.714 mm
N/A 21-1/2 N/A 0.0269 in0.683 mm N/A 0.0022 in0.056 mm N/A 0.0298 in0.757 mm
N/A 21 N/A 0.0285 in0.724 mm N/A 0.0022 in0.056 mm N/A 0.0314 in0.798 mm
N/A 20-1/2 N/A 0.0302 in0.767 mm N/A 0.0023 in0.058 mm N/A 0.0333 in0.846 mm
N/A 20 N/A 0.0320 in0.813 mm N/A 0.0023 in0.058 mm N/A 0.0351 in0.892 mm
N/A 19-1/2 N/A 0.0339 in0.861 mm N/A 0.0025 in0.064 mm N/A 0.0370 in0.940 mm
N/A 19 N/A 0.0359 in0.912 mm N/A 0.0025 in0.064 mm N/A 0.0391 in0.993 mm
N/A 18-1/2 N/A 0.0380 in0.965 mm N/A 0.0026 in0.066 mm N/A 0.0414 in1.052 mm
N/A 18 N/A 0.0403 in1.024 mm N/A 0.0026 in0.066 mm N/A 0.0437 in1.110 mm
N/A 17-1/2 N/A 0.0427 in1.085 mm N/A 0.0028 in0.071 mm N/A 0.0463 in1.171 mm
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