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21/02/2026

Black thin wall heat shrink tubing
Art.-No. 300-73607 | TCN20-12.7/6.4-PO-X-BK

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Meets UL224 VW-1 specifications, making it ideal for high-heat applications.
Heat Shrink Tubing 2:1
Tubing is 2:1, thin wall and self extinguishing providing good resistance to common fluids and solvents.

    • 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.
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    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 TCN20-12.7/6.4-PO-X-BK
    Packaging Type box
    Part No. 300-73607
    Product family Insulation
    Short Desc. Heat Shrink Tubing, Non-Adh, 2:1 Shrink Ratio, 0.50" Supp/.25" Recov Dia, PO-X, Black, 500ft/reel
    Type TCN20-12.7/6.4
    UV Resistant No
    For Object Outside Diameter 7.66-11.44 mm
    Length (imperial) 500.0ft
    Length (metric) 152.4m
    Longitudinal Change After Shrinkage +/-5%
    Nominal Diameter (imperial) 0.5"
    Nominal Diameter (metric) 12.7mm
    Printable No
    Recovered Diameter (imperial) 0.25"
    Recovered Diameter (metric) 6.4mm
    Shrink Ratio 2:1
    Size (imperial) 1/2"
    Supplied Diameter (imperial) 0.5"
    Supplied Diameter (metric) 12.7mm
    Trade Size 1/2 "
    Volume Resistance 10¹⁴ Ω cm
    Wall Thickness (imperial) 0.025"
    Wall Thickness (metric) 0.62mm
    CE Certification No
    CSA Certified Yes
    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]
    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
    Pkg. Qty. 500ft
    Pkg. Qty. 152.4m

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    Art.-No.: 300-73607 Contact
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