3M
3M FP301-1 Heat Shrink Tubing 1 in ID 100 ft Black
Flexible polyolefin tubing shrinks 2:1 from 1 in to .5 in, covering 4/0 AWG to 500 MCM wire over 100 ft with flame-retardant, acid-resistant walls rated to 600 V
- 2:1 shrink ratio fits 4/0 AWG to 500 MCM wires
- 100 ft continuous length enables custom cut-to-length pieces
- Flame-retardant polyolefin resists acids, alkalis and solvents
- Operating range from -67 °F to 275 °F suits harsh environments
- 600 V dielectric strength protects electrical connections
3M FP301-1 Heat Shrink Tubing 1 in ID 100 ft Black
This 100 ft spool of 3M FP301-1 heat shrink tubing is designed for electrical insulation and strain relief on wire sizes ranging from 4/0 AWG to 500 MCM. It suits electricians, automotive technicians and maintenance crews who need reliable, flexible polyolefin sleeving for cable repairs, harnessing and environmental sealing in professional installations.
Thermal behaviour and electrical rating
The tubing carries a dielectric strength of 600 V and operates continuously across a temperature range of -67 Degrees to 275 Degrees F. Its thin-wall polyolefin construction is flame retardant and resistant to acids, alkalis and common solvents, ensuring stable insulation performance without adding significant bulk or weight to the wire bundle.
Sustained load performance
When heated to the minimum shrink temperature of 212 Degrees F, the 2:1 ratio reduces the inside diameter from 1 in to .5 in with a recovered wall thickness of .04 in. The material maintains its mechanical and dielectric properties throughout extended thermal cycling and prolonged exposure to the upper end of its rated temperature range.
Highlights
- 2:1 shrink ratio fits 4/0 AWG to 500 MCM wires
- 100 ft continuous length enables custom cut-to-length pieces
- Flame-retardant polyolefin resists acids, alkalis and solvents
- Operating range from -67 °F to 275 °F suits harsh environments
- 600 V dielectric strength protects electrical connections
Specifications
| Brand | 3M |
|---|
Questions about this item
How do I install the 3M FP301-1 heat shrink tubing, and what step do people often miss?
Slide the tubing over the wire before making the connection, then apply heat evenly until it shrinks to .5 in ID. The step often missed is heating uniformly around the full circumference so the .04 in wall seals without gaps.
What maintenance or replacement will the 3M FP301-1 heat shrink tubing need later?
The polyolefin tubing is acid, alkali and solvent resistant with no adhesive liner, so it requires no scheduled maintenance. Replace only if physical damage cuts the .04 in wall or the 600 V dielectric rating is compromised.
What limit appears first on the 3M FP301-1 heat shrink tubing under sustained use?
Continuous exposure above 275 °F exceeds the rated temperature range, causing the material to degrade before the 2:1 shrink ratio or 600 V dielectric strength would be reached in normal service.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
