23/02/2026

Black thin wall heat shrink tubing
Art.-No. 300-73604 | TCN20-4.8/2.4-PO-X-BK

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  • Tubing is 2:1, thin wall and self extinguishing providing good resistance to common fluids and solvents.
  • Low shrink temperature gives excellent physical and electrical performance.
  • Available in multiple diameters and lengths offering several options to fit specific needs.
Package size
Application TCN20 is suitable for a wide range of applications like electrical insulations, mechanical protection and cable bundling.
Brand Family TCN20
Color Black (BK)
Description TCN20 Heat Shrink is a general purpose, thin wall tubing used to protect electrical and mechanical wiring. Polyolefin material is self extinguishing and resistant against common fluids and solvents. The low shrink temperature and mechanical strength make this tubing widely used in the electric and electronics industry. Available in a wide range of diameters up to 2.0" (50.8mm) and multiple lengths. TCN20 Heat Shrink is UL224 125 °C 600V VW-1 and RoHS.
Elongation At Heat Aging 350%
Heat Aging Test 168h/160°C
Minimum Tensile Strength At Heat Aging 14MPa
PART DESCRIPTION TCN20-4.8/2.4-PO-X-BK
Packaging Type pack
Part No. 300-73604
Product family Insulation
Short Desc. Heat Shrink Tubing, Non-Adh, 2:1 Shrink Ratio, 0.19" Supp/.09" Recov Dia, PO-X, Black, 1000ft/reel
Type TCN20-4.8/2.4
UV Resistant No
For Object Outside Diameter 2.88-4.32 mm
Length (imperial) 1000.0ft
Length (metric) 304.8m
Longitudinal Change After Shrinkage +/-5%
Max. Bundle Diameter (imperial) 0.18"
Max. Bundle Diameter (metric) 4.8mm
Min. Bundle Diameter (imperial) 0.09"
Min. Bundle Diameter (metric) 2.4mm
Nominal Diameter (imperial) 0.19"
Nominal Diameter (metric) 4.8mm
Printable No
Recovered Diameter (imperial) 0.094"
Recovered Diameter (metric) 2.4mm
Shrink Ratio 2:1
Size (imperial) 3/16"
Supplied Diameter (imperial) 0.189"
Supplied Diameter (metric) 4.8mm
Trade Size 3/16 "
Volume Resistance 10¹⁴ Ω cm
Wall Thickness (imperial) 0.019"
Wall Thickness (metric) 0.52mm
CE Certification No
CSA Certified No
Dielectric Strength 20kV/mm
Elongation at break (min.) 400%
Flammability UL 224 VW-1
Halogen Free No
Material PO-X
Material Polyolefin, cross-linked (PO-X)
Min. Shrink Temperature +212 °F (+100 °C)
Operating Temperature -67°F to +257°F (-55°C to +125°C)
Prop65 Warning No
REACH Conformity Yes
ROHS compliant Yes
UL File Number [Logo] E125182 [cRUus], E143529 [cRUus]
UL Listed (US and Canada) No
UL Listed (US) No
UL Recognized (US and Canada) Yes
UL Recognized (US) Yes
Customs Number (Schedule B) 3926909988
Harmonized Tariff Schedule Code 3926.90.9989
Pkg. Qty. 1000ft
Pkg. Qty. 304.8m
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