UL 3239 High Voltage DC Silicone Wire for UAE and Saudi Arabia
UL 3239 is a high voltage silicone rubber wire rated 200°C with DC voltage ratings from 3,000V DC to 100,000V DC depending on insulation thickness construction, produced under UL AWM Style 3239 and File No. E333030. Unlike standard AWM styles rated for AC voltage, UL 3239 is specifically tested and rated for DC high voltage applications — covering the internal wiring of DC power supplies, high voltage multiplier stacks, electrostatic precipitators, corona discharge equipment, X-ray generators, and laser power supplies where the internal wiring must carry high DC voltages reliably over the service life of the equipment.
UAE and Saudi Arabia are significant importers of high-technology industrial, medical, and analytical equipment — laser cutting and marking systems, industrial X-ray inspection equipment, electrostatic painting and coating systems, and high-voltage test equipment — all of which require UL 3239 or equivalent specification high voltage DC internal wiring. Equipment OEMs supplying UAE and Saudi Arabia from JAFZA and international manufacturing bases specify UL 3239 for the internal HV wiring of this equipment, sourcing factory-direct from certified Chinese manufacturers to meet cost and lead time requirements. CableApex manufactures UL 3239 under File No. E333030 and exports CIF Jebel Ali and CIF Jeddah.
Specifications — UL 3239
| Parameter | Specification |
|---|---|
| UL AWM style | 3239 |
| Insulation | Extruded silicone rubber (SR) |
| Temperature rating | 200°C continuous |
| Voltage rating | 3,000V DC – 100,000V DC (construction-dependent) |
| Common voltage grades | 3kV, 5kV, 10kV, 15kV, 20kV, 30kV, 40kV, 50kV, 60kV, 100kV DC |
| Conductor | Stranded copper (tinned or bare) |
| AWG range | 30 AWG – 8 AWG (typical HV range) |
| Flame rating | Horizontal flame |
| UL file number | E333030 |
| Compliance | RoHS, REACH |
Applications in UAE and Saudi Arabia
Laser cutting and marking equipment (UAE and Saudi)
CO₂ and fiber laser systems used in UAE and Saudi Arabia’s manufacturing and industrial sectors require UL 3239 for the high voltage DC internal wiring from the laser power supply to the laser tube or gain medium — where voltages of 10–30 kV DC are applied continuously during operation. Equipment OEMs and maintenance operations sourcing replacement HV wire for laser systems in UAE and Saudi Arabia specify UL 3239 at the appropriate voltage grade for the system’s power supply output.
Industrial X-ray and inspection equipment
X-ray inspection systems used in Saudi Arabia’s oil and gas pipeline inspection, food inspection, and industrial NDT applications use UL 3239 for the high voltage supply lead from the HV transformer secondary to the X-ray tube — where voltages of 40–150 kV DC are standard. UAE and Saudi Arabia import X-ray inspection equipment from international OEMs that specify UL 3239 for the internal HV wiring in their equipment declarations.
High voltage DC power supplies and inverters
DC power supplies, HV multiplier assemblies, and high voltage test equipment manufactured for or supplied to UAE and Saudi Arabia industrial and laboratory markets use UL 3239 for all internal wiring above 3 kV DC — covering connections between the transformer secondary, rectifier stack, voltage multiplier, and HV output terminal.
Other applications
- Electrostatic powder coating equipment HV leads — UAE industrial finishing sector
- Corona treatment equipment internal wiring
- Ion beam and plasma equipment HV internal connections
- High voltage test bench internal wiring for Saudi Aramco test facilities
Ordering Information
Specify voltage rating (kV DC), AWG, conductor type, and quantity. MOQ 500 m per voltage/AWG. UL 3239 compliance documentation and RoHS Declaration supplied. Arab League CoO on request.
Request CIF Jebel Ali or Jeddah pricing. Provide voltage rating, AWG, quantity, and destination. We respond within 24 hours. Contact us.


