21/07/2026

Heat Shrink Molded Shapes, For plug, -50 °C to +135 °C, 26/19.0mm, for ⌀20.4-24.6 mm, PO-X, BK, 1/bag


Art.-No. 401-77012

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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 177-1-JWM250-PO-X-BK
Packaging Type bag
Part No. 401-77012
Short Description Heat Shrink Molded Shapes, For plug, -50 °C to +135 °C, 26/19.0mm, for ⌀20.4-24.6 mm, PO-X, BK, 1/bag
Type 177-1-JWM250
Flexibility Flexible
For Object Outside Diameter 20.4-24.6 mm
H Recovered Dia. Max. b (imperial) 0.74"
H Recovered Dia. Max. b (metric) 19.0mm
H Supplied Dia. Min. a (imperial) 1.01"
H Supplied Dia. Min. a (metric) 26mm
HW ± 20 % 1.8mm
HW ± 20% .07"
J Recovered Dia. Max. b (imperial) .1"
J Recovered Dia. Max. b (metric) 2.5mm
J Supplied Dia. Min. a (imperial) .29"
J Supplied Dia. Min. a (metric) 7.5mm
P ± 10 % 74mm
P ± 10% 2.89"
S Nominal Length (imperial) 1.76"
S Nominal Length (metric) 45mm
T ± 20% .04"
Tensile Strength 19MPa
Tube Shape Bottle
Adhesive WM250
Flammability ASTM D635
Material PO-X
Material Polyolefin, cross-linked (PO-X)
Min. Shrink Temperature +275 °F (+135 °C)
Operating Temperature -58°F to +275°F (-50°C to +135°C)
ROHS compliant Yes
Pkg. Qty. 1
Pkg. Qty. 1EA

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