21/07/2026

Heat Shrink Molded Shapes, For plug, -55 °C to +105 °C, Halogen-free, 34/26.0mm, for ⌀27.6-32.4 mm, PO-X, BK, /bag


Art.-No. 401-78018

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  • Cable strain relief for partially loaded connectors
  • Small cable diameters
  • Use with our W24 adhesive for excellent chemical resistance


Application Heat Shrinkable moulded shapes for use in Electrical and Electronic Cable Harness Applications.
Color Black (BK)
Description Helashrink 170 series, with rib, provides cable strain relief in applications of partially loaded connectors, resulting in small cable diameters. When used in conjunction with our W24 adhesive, excellent chemical resistance can also be achieved.
PART DESCRIPTION 178-1-HW21-PO-X-BK
Packaging Type bag
Part No. 401-78018
Short Description Heat Shrink Molded Shapes, For plug, -55 °C to +105 °C, Halogen-free, 34/26.0mm, for ⌀27.6-32.4 mm, PO-X, BK, /bag
Type 178-1-HW21
Flexibility Flexible
For Object Outside Diameter 27.6-32.4 mm
H Recovered Dia. Max. b (imperial) 1.01"
H Recovered Dia. Max. b (metric) 26.0mm
H Supplied Dia. Min. a (imperial) 1.33"
H Supplied Dia. Min. a (metric) 34mm
HW ± 20 % 1.8mm
HW ± 20% .07"
J Recovered Dia. Max. b (imperial) .12"
J Recovered Dia. Max. b (metric) 3mm
J Supplied Dia. Min. a (imperial) .37"
J Supplied Dia. Min. a (metric) 9.5mm
P ± 10 % 84mm
P ± 10% 3.31"
S Nominal Length (imperial) 1.99"
S Nominal Length (metric) 51mm
T ± 20% .04"
Tube Shape Bottle
Dielectric Strength 15kV/mm
Dielectric Strength test method ASTM D2671
Halogen Free Yes
Material PO-X
Material Polyolefin, cross-linked (PO-X)
Min. Shrink Temperature +275 °F (+135 °C)
Operating Temperature -67°F to +221°F (-55°C to +105°C)
ROHS compliant Yes
Packaging 1 - Weight (kg) 0.009001kg

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