Information
Alpha Wire | www.alphawire.com | 1-800-52 ALPHA
Specifications subject to change. For complete specifications and availability, visit www.alphawire.com.
462
FIT > FIT Heat-Shrink Tubing
Heat-Shrink Tubing
FIT®-421 Heat-Shrink Tubing
4:1 Shrink Ratio, XLPO
AMS-DTL-23053/5 Class 1
UL 224 VW-1
• High-shrink ratio
• Large supplied diameters
• Conforms to irregular shapes
• Low water absorption
• UV resistant
Operating Temperature
• -55°C to +135°C
• -55°C to +125°C (UL)
Shrink Temperature
• 90°C min.
• 121°C full recovery
Material
• Cross-linked polyolefin
Color
• Black
Physical Properties
• Tensile strength: 1500 psi
(10.34 N/mm
2
)
• Elongation: 200% min
• Longitudinal change: +5%/-15%
• Specific gravity: 1.35
• Flame retardant
• Shelf life: 5 years at 18°C
to 35°C
Chemical Properties
• Corrosive eect: none
• Fungus resistance: no growth
• Water absorption: 0.5% max
• Fluid resistance: 1000 psi
(6.89 N/mm
2
)
• UV resistant
• Lead free
Electrical Properties
• 600 V (UL)
• Dielectric strength: 500 V/mil
(197 kV/cm)
• Volume resistivity: 10
14
ohm-cm
Availability
See table
Part No.
Supplied ID, Min. Recovered ID, Max.
Recovered
Wall Thickness, Nom.
Availability
Qty, Cut Pieces at Length
Inch mm Inch mm Inch mm 4 ft (1.2 m) 15 ft (4.5 m)
FIT-421-1IN 1.000 25.40 0.260 6.60 0.045 1.14 5 —
FIT-421-1-1/2 1.500 38.10 0.375 9.53 0.045 1.14 5 —
FIT-421-2IN 2.000 50.80 0.550 13.97 0.045 1.14 5 —
FIT-421-3IN 3.000 76.20 0.810 20.57 0.045 1.14 2 —
FIT-421-4IN 4.000 101.60 1.050 26.67 0.045 1.14 2