UL 21481 TPE Sheath UL Electrical Cable 300V
Product Specifications
UL Style Number: 21481
Rated Voltage: 300V
Rated Temperature: 80℃
Standard: UL758/UL1581
Marking: E364879 AWM 21481 AWG VW-1 80℃ 300V C AWM I A 80℃ 300V FT1 Linke Cable
Technical Specifications
| Conductor Size (AWG) |
Construction (No./mm) |
Diameter (mm) |
Nominal Thickness (mm) |
Diameter (mm) |
Core |
Shield |
Shield Rate (%) |
Nominal Thickness (mm) |
Diameter (mm) |
Max. Conductor Resistance (Ω/KM) Bare Copper |
Max. Conductor Resistance (Ω/KM) Tinned Copper |
| 26 |
7/0.16 |
0.48 |
0.38 |
1.30±0.10 |
2 |
Optional |
0.76 |
4.10±0.15 |
140 |
150 |
Note: Wire specifications can be customized
Available Colors
Black, Brown, Red, Orange, Yellow, Green, Blue, Purple, Gray, White, Yellow/Green, Transparent
About Linke Cable
Linke Cable Technology Co., Ltd is a leading cable manufacturer in China with over 10 years of experience in R&D, production, and marketing of high-quality cables. We specialize in providing custom cable solutions worldwide.
Our Specializations
- EV charging cables
- Medical cables
- Silicone cables
- Spring cables
- Braided cables
- Towlobe cables
- UL wires
- Automotive cables
Quality Assurance
- 6 R&D engineers with 10+ years of cable technology experience
- 10 quality control specialists monitoring every production step
- 50+ experienced production staff
| Brand |
LINKE |
Cross Section (mm²) |
0.01-500mm² |
| Wire Gauge (AWG) |
[e.g., 24AWG, 28AWG] |
Conductor |
Tinned Copper /bare copper, based on client's requirements |
| Insulation material |
PVC/TPU/Silicone rubber/PE/PP/XLPE/Nylon/other |
Jacket Material |
[PVC/PU/Rubber/Braid/etc.] |
| Certifications |
RoHS/REACH/UL/CE/IP68/etc |
Custom Length |
[e.g., 1m, 3ft, 5m ±5% tolerance] |
| Cable Type |
[Medical/Power/Audio/Coaxial/Electrical/Automotive/Energy storage//etc.] |
Shielding |
[Shielded/Unshielded/Braid Shield] |
| Impedance |
[e.g., 75Ω (for coaxial cables)] |
Printing/Logo |
[Text/Label/Logo, max. 20 characters] |
| Bend Radius |
[e.g., ≥5* cable diameter] |
Current Rating |
[e.g., 5A] |
| Voltage Rating |
[e.g., 30V AC/DC] |
Connector Material |
[Gold-plated/Nickel-plated/Brass/etc.] |
| Connectors |
[e.g., USB Type-C, 3.5mm Jack, RJ45] |
Jacket |
XLPE or PE or PVC RUBBER |
| Delivery Time |
7-14 days after confirming the order |
Colors |
[Black/White/Red/Custom Pantone/etc.] |
| temperature |
Minus-70℃to 350℃(-70℃ ~ 350℃) |
Package |
Roll/box/plate/Custom |
| Supporting Services |
custom cable, end to end solutions, including precise cutting, crimping and installation of lugs (specify material,e.g.,copper/nickel plated) |
Independent Laboratory • Complete Testing Equipment • Full Quality Control
We test every product by strict standards to ensure superior quality and reliable performance.
| No. |
Test Item |
Test Condition |
Test Requirement |
Test Data |
Result |
| 1 |
Structure Inspection |
1. Comply with wire size table2. Minimum thickness ≥ 80% of average thickness |
Comply with wire size table |
Refer to test record |
Pass |
| 2 |
Thermal Shock |
Wind the sample on an iron rod of specified size, place in an aging oven at specified temperature for 1 hour, cool the sample to room temperature for at least 30 minutes, then observe the sample |
No cracks on the sample surface |
No cracks |
Pass |
| 3 |
Heat Deformation |
1. Measure sample thickness (mark measurement position)2. Place sample and test fixture in aging oven for preheating at specified temperature for 1 hour3. Place sample under pressure column of test fixture for 1 hour4. Re-measure sample thickness at the same position |
1. Sample shall not be cracked by pressure column or expose conductor2. Thickness reduction ≤ 50% |
Refer to test record |
Pass |
| 4 |
FT2 |
Apply a standard flame at a height of 125mm once |
1. Flame shall not propagate along its length2. Flame shall not spread to nearby flammable materials |
Refer to test record |
Pass |
| 5 |
Aging |
1. Take five sections of 200mm-long sheath2. Place specimens in aging oven at 158℃ for 168 hours3. After taking out specimens, place at room temperature 23±5℃ for 16 hours, then test elongation at break and tensile strength |
1. Elongation before aging ≥ 300%, elongation after aging ≥ 80% of that before aging2. Tensile strength before aging > 1.41kg/mm², tensile strength after aging ≥ 80% of that before aging |
Refer to test record |
Pass |
| 6 |
Cold Bend |
Store sample in low-temperature box at specified temperature for 4 hours, wind sample on iron rod of specified size with specified turns, complete winding within 30 seconds after sample is taken out of low-temperature box |
No cracks on the sample surface |
No cracks |
Pass |
| 7 |
Conductor Resistance |
Measure resistance of one-meter core conductor with DC resistance meter |
At 20℃, resistance of 8AWG ≤ 2.23Ω/km |
Refer to test record |
Pass |
Linke cable technology (DongGuan) Co. Ltd. concentrate on R&D and
provide professional solutions to the Cable&Wire,especially for the
different industry customers.It contains :
Humanoid robot cable,
AI power cable/data cable,
Semiconductor cable/industrial automatic cable,
Sensor cable,
New energy cable,
Medical beauty wire,
UL wire cable,
Linke Cable has diversified product development capabilities and technical capabilities to support diversified
customer needs. We have obtained the following product authorization:UL 758,CCC,RoHs,REACH,CE; We
have obtained the following quality management system:ISO 9001-2015(All products); ISO 13485
(Medical apparatus and instruments),IATF 16949(Auto industry)
Frequently Asked Questions
1. Are you a manufacturer or trading company?
We are a professional manufacturer. We can control your order from the first beginning to the last. Welcome to visit us. We'll pick you up in Shenzhen.
2. How can I get a sample to test your quality?
The samples are free for you. New clients are expected to pay for the courier cost.
3. What's your Minimum Order Quantity?
Normally 100m. However, the cable is very heavy. You'd better order a suitable quantity to avoid the high freight. Sea transportation is the best option.
4. Can I get a discount?
It depends on your quantity. We can make a discount and afford the freight. Please kindly contact us.
5. Does your company accept OEM production?
Yes, we can print your company name and even customize the quality card to promote your company.
Contact Us
For more information, please feel free to contact us!
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