23/02/2026

Bottle Shapes, VG style
Art.-No. 401-78018 | 178-1-HW21-PO-X-BK

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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.
Brand Family HELASHRINK
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
Product family Insulation
Type 178-1-HW21
⌀H max. b 26mm
⌀H min. a 34mm
⌀J max. b 3mm
⌀J min. a 9.5mm
Flexibility Flexible
For Object Outside Diameter 27.6-32.4 mm
HW ± 20 % 1.8mm
HW ± 20% .07"
Max. Diameter J b .12"
Max. Recovered Diameter b 1.01"
Min. Diameter J a .37"
Min. Supplied Diameter a 1.33"
Nominal Length S 51mm
Nominal S 1.99"
P ± 10 % 84mm
P ± 10% 3.31"
T ± 20% .04"
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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