UL 3239 High Voltage DC Wire — Indonesia
UL AWM Style 3239 is a high voltage DC wire specification covering extruded or non-extruded insulation constructions, rated up to 200°C and up to 60,000V DC. UL 3239 covers conductor sizes from 24 AWG to 10 AWG in copper or nickel, 12 AWG to 10 AWG in aluminium (90°C maximum operating temperature), or 27 AWG to 20 AWG resistance wire, in solid or stranded round construction. Conductor plating options include tinned, silver-plated, nickel-plated, heat-bonded, or overcoated copper. Optional shield, outer covering, and jacket are available depending on the application requirement. UL 3239 is designated for internal wiring of TV receivers, or for other applications where acceptability has been determined by UL.
UL 3239 is a framework specification: the specific temperature rating, voltage rating, insulation material, and insulation wall thickness for each product are defined by the individual product’s insulation construction, confirmed at the time of production. The 200°C and 60,000V DC values represent the maximum upper limits of the Style — an individual UL 3239 product may be rated at a lower temperature and voltage depending on the insulation material and wall thickness used.
Indonesian industrial equipment manufacturers and electronics OEMs sourcing UL 3239 describe it as kabel tegangan tinggi DC (high voltage DC cable) or kabel HV DC UL sertifikat Indonesia (UL certified high voltage DC cable Indonesia). CableApex supplies UL 3239 with export to Indonesia, CIF Surabaya.

UL 3239 Framework Specification — Key Parameters
| Parameter | Specification |
|---|---|
| UL AWM Style | 3239 |
| UL Subject | 758, Section 3 |
| Maximum temperature | 200°C (actual rating depends on insulation construction) |
| Maximum voltage | 60,000V DC (actual rating depends on insulation construction) |
| Insulation type | Extruded or non-extruded thermoplastic and/or thermosetting |
| Conductor material | Copper or nickel (24–10 AWG); aluminium (12–10 AWG, 90°C max operating temperature); resistance wire (27–20 AWG) |
| Conductor plating | Tinned, silver, nickel-plated, heat-bonded, or overcoated (copper) |
| Shield | Optional |
| Covering | Optional |
| Jacket | Optional |
| Flame rating | Horizontal flame and VW-1 |
| UL recognition | UL Recognized Component — file on record |
| Permitted use | Internal wiring of TV receivers, or where acceptability has been determined by UL |
| RoHS / REACH | Documentation available on request |
How to Specify UL 3239 — What to Provide at Enquiry
Because UL 3239 is a framework specification, the specific product construction is confirmed based on your application requirements. When enquiring, please provide:
Required: AWG size · Required voltage rating (V DC) · Required temperature rating (°C) · Conductor type (solid or stranded) · Conductor material (copper / nickel / aluminium)
Optional: Conductor plating preference (tinned / silver / nickel) · Shield required (yes/no) · Outer covering required (yes/no) · Jacket required (yes/no) · Quantity and destination port
We will confirm the applicable UL 3239 insulation construction that covers your specified temperature and voltage requirements, and provide pricing accordingly.
Applications
High voltage DC internal wiring — television and display equipment
UL 3239’s original use designation — internal wiring of TV receivers — covers the high-voltage anode supply wiring, flyback transformer output wiring, and high-voltage rectifier output connections in CRT television sets and in the high-voltage power supply sections of display equipment where internal DC voltages exceed the 750V DC limit of standard AWM wire specifications. Indonesian electronics manufacturers assembling television and display equipment for the domestic market and for export source UL 3239 for this internal wiring application.
High voltage DC power supply internal wiring — equipment where acceptability has been determined by UL
UL 3239 is also used for internal high-voltage DC wiring in the power supply output section of equipment — from the high-voltage rectifier and multiplier stage to the high-voltage output terminal — in applications such as electrostatic precipitator power supplies and corona discharge equipment power supplies, where the acceptability of this use has been determined by UL for the specific equipment. UL 3239’s framework specification structure, covering insulation constructions rated to 60,000V DC, allows a single UL AWM certification to cover a range of high-voltage DC internal wiring requirements. Confirm acceptability for your specific equipment application before specifying.
Other example applications where acceptability may be determined by UL on a case-by-case basis include electrostatic and corona discharge equipment internal wiring, and other high-voltage DC equipment internal wiring. These are illustrative examples only — UL 3239’s permitted use is internal wiring of TV receivers or other applications where acceptability has been determined by UL; confirm suitability for your specific equipment with your UL listing requirements before specifying.
UL 3239 vs UL 1911 — Selection Reference
| Parameter | UL 3239 | UL 1911 |
|---|---|---|
| Max voltage | 60,000V DC | 50,000V DC |
| Max temperature | 200°C | 250°C |
| AWG range | 24–10 AWG (Cu/Ni) | 24–10 AWG |
| Insulation | Extruded or non-extruded — per facing page construction | Any material — per facing page construction |
| Permitted use | TV receivers; other uses where acceptability determined by UL | Internal wiring of electronic gas ignitor systems |
For high voltage DC wire up to 50,000V DC for gas ignition systems, see UL 1911. For 10,000V AC ignition wire, see UL 3304.
Key Features
Product
- UL AWM Style 3239, up to 200°C, up to 60,000V DC
- UL Recognized Component — file on record
- Framework specification — construction confirmed to application
- Copper, nickel, or aluminium conductor options
- Multiple plating options available
- Optional shield, covering, and jacket
- Horizontal flame and VW-1 flame rating
Supply for Indonesia
- Export supply, CIF Surabaya — confirm transit time at enquiry
- UL compliance documentation available on request
- MOQ 500 m per specification
- Lead time confirmed at enquiry stage
- Specification confirmed before order
Ordering Information
UL 3239 is a custom-specification product. Provide AWG, required voltage rating (V DC), required temperature rating (°C), conductor material and plating, optional shield/covering/jacket requirements, quantity, and destination port. We will confirm the applicable UL 3239 construction and provide pricing. UL compliance documentation supplied with every order on request.
Request pricing for UL 3239. Provide AWG, voltage rating, temperature rating, and application details. Response within 24 hours. Contact us.






