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of high-performance wire,
cable and tubing since 1959
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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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Item #

AWG Size

Nom. Bare Wire Diameter

Min. Increase in Diameter Due to Film Coating

Max. Overall Diameter of Film-Coated Wire

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 22 N/A 0.0253 in0.643 mm N/A 0.0021 in0.053 mm N/A 0.0281 in0.714 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 23 N/A 0.0226 in0.574 mm N/A 0.0020 in0.051 mm N/A 0.0253 in0.643 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 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 25 N/A 0.0179 in0.455 mm N/A 0.0018 in0.046 mm N/A 0.0203 in0.516 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 26 N/A 0.0159 in0.404 mm N/A 0.0017 in0.043 mm N/A 0.0182 in0.462 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 27 N/A 0.0142 in0.361 mm N/A 0.0016 in0.041 mm N/A 0.0164 in0.417 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 28 N/A 0.0126 in0.320 mm N/A 0.0016 in0.041 mm N/A 0.0147 in0.373 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 29 N/A 0.0113 in0.287 mm N/A 0.0015 in0.038 mm N/A 0.0133 in0.338 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 30 N/A 0.0100 in0.254 mm N/A 0.0014 in0.036 mm N/A 0.0119 in0.302 mm
N/A 30-1/2 N/A 0.0095 in0.241 mm N/A 0.0014 in0.036 mm N/A 0.0114 in0.290 mm
N/A 31 N/A 0.0089 in0.226 mm N/A 0.0013 in0.033 mm N/A 0.0108 in0.274 mm
N/A 31-1/2 N/A 0.0084 in0.213 mm N/A 0.0013 in0.033 mm N/A 0.0103 in0.262 mm
N/A 32 N/A 0.0080 in0.203 mm N/A 0.0012 in0.030 mm N/A 0.0098 in0.249 mm
N/A 32-1/2 N/A 0.0075 in0.190 mm N/A 0.0012 in0.030 mm N/A 0.0093 in0.236 mm
N/A 33 N/A 0.0071 in0.180 mm N/A 0.0011 in0.028 mm N/A 0.0088 in0.224 mm
N/A 33-1/2 N/A 0.0067 in0.170 mm N/A 0.0011 in0.028 mm N/A 0.0084 in0.213 mm
N/A 34 N/A 0.0063 in0.160 mm N/A 0.0010 in0.025 mm N/A 0.0078 in0.198 mm
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