UL 3304 Silicone Rubber Ignition Wire — 200°C / 10,000 Vac, Fiberglass Braid — México
Style 3304 is the silicone rubber high-voltage ignition wire within UL Subject 758 — engineered specifically for internal wiring of electronic ignition systems in gas ranges and gas or fuel oil burner systems. Rated 10,000 Vac and 200°C with extruded silicone rubber insulation at 40 mils minimum average wall and a fiberglass braid outer covering, this wire provides the complete construction package required for ignition lead wiring in commercial and industrial combustion equipment: high dielectric strength for the AC ignition voltage, 200°C thermal integrity in proximity to burner flames, and fiberglass braid mechanical protection for the installation and servicing environment of heavy-duty combustion equipment.
For Mexican combustion equipment manufacturers, industrial burner importers, and fuel oil boiler distributors, Style 3304 is the UL-recognized ignition wire specification that satisfies both the dielectric and thermal demands of gas and fuel oil ignition systems — with the fiberglass braid construction providing the mechanical robustness needed for commercial and industrial combustion equipment where ignition leads are subject to installation stress and servicing access cycles over the equipment service life.
Technical Specifications — UL Style 3304
| Parameter | Value |
|---|---|
| UL Style | 3304 |
| UL Subject | 758, Section 3 |
| Temperature Rating | 200°C |
| Voltage Rating | 10,000 Vac |
| Flame Rating | Horizontal flame |
| AWG Range | 22 AWG – 12 AWG, solid or stranded round |
| Conductor | Solid or stranded round copper |
| Insulation Material | Extruded silicone rubber (SR-Silicone) |
| Insulation Thickness | 40 mils min average / 36 mils min at any point |
| Covering | Fiberglass braid |
| Typical Use | Internal wiring of electronic ignition systems in gas ranges or gas/fuel oil burner systems — protected from damage during handling, installation, and servicing (sistemas de encendido electrónico de gas y combustóleo) |
| Available Colors | Black, white, red (custom on request) |
| Standard Spool Length | 100 m / 200 m / 305 m |
| MOQ | Contact for quote — consultar cotización |
Ignition System Applications — Sistemas de Encendido Industrial en México
Style 3304’s 10,000 Vac / 200°C / fiberglass braid construction serves commercial and industrial combustion equipment ignition applications across México’s energy, industrial processing, and infrastructure sectors:
- Industrial gas burner ignition systems — high-voltage ignition lead wiring in industrial forced-draft gas burners used for process heating in manufacturing plants across Tamaulipas and Nuevo León’s petrochemical and steel processing corridors, where industrial burner ignition systems generate sustained 8,000–10,000 Vac ignition pulses and the burner proximity environment creates sustained 180–200°C wire surface temperature conditions requiring both the 10kVac dielectric rating and 200°C silicone rubber insulation simultaneously.
- Fuel oil boiler ignition wiring — ignition electrode lead wires in fuel oil (combustóleo) fired industrial boilers used for steam generation in food processing plants, textile manufacturing operations, and industrial process heating facilities across Veracruz’s industrial corridor, where fuel oil ignition systems operate at higher spark energy levels than natural gas systems and require the full 10,000 Vac rated wire construction with fiberglass braid mechanical protection for reliable long-term ignition performance.
- Commercial gas-fired HVAC heating unit ignition — ignition lead wiring in large commercial gas-fired make-up air units, rooftop heating units, and industrial space heaters installed in manufacturing facilities and logistics warehouses across Nuevo León and Tamaulipas, where commercial-scale gas burner ignition transformers output 6,000–10,000 Vac and the ignition lead must maintain dielectric integrity through repeated ignition cycles over multi-year service life.
- Gas-fired process dryer and oven ignition systems — ignition electrode wiring in direct-fired gas dryers for textile processing, paper manufacturing, and industrial coating lines across México’s central manufacturing corridor, where process temperatures at the burner assembly create a sustained high-temperature environment at the ignition lead routing path requiring 200°C silicone rubber insulation and fiberglass braid abrasion protection against hot metal contact.
Engineering Notes — 10kVac Silicone Rubber vs. DC-Rated Ignition Wire
AC vs. DC voltage rating in ignition systems: Style 3304 is rated 10,000 Vac — an AC voltage rating — while Style 1911 carries a DC voltage rating up to 50,000 Vdc. These are not directly comparable ratings. An AC voltage rating of 10,000 Vac implies a peak voltage of approximately 14,140 Vpeak, which is the actual dielectric stress the insulation experiences. A DC rating of 50,000 Vdc is a steady-state DC stress without the peak multiplication factor. For ignition transformer-fed systems that output AC high voltage — the standard configuration in fuel oil burner ignition systems and most commercial gas burner applications — Style 3304’s 10,000 Vac rating is the appropriate specification. For electronic spark ignition systems that generate DC high-voltage pulses (typical in residential gas appliances), Style 1911 with its DC rating is the correct specification. Confirm the output waveform type of your ignition system before specifying between these two styles.
40-mil silicone rubber wall — thicker than standard silicone AWM wire: Style 3304 specifies 40 mils minimum average silicone rubber wall — significantly thicker than the 30-mil wall of Style 3071 or 3135 at the same AWG. This heavier insulation wall directly reflects the 10,000 Vac dielectric requirement — providing the insulation mass needed to withstand sustained AC high-voltage stress without partial discharge initiation or dielectric fatigue over the ignition system service life. Do not substitute thinner-wall silicone rubber styles for Style 3304 in 10kVac ignition lead applications.
Fiberglass braid — function and specification: The fiberglass braid covering over the silicone rubber insulation performs two distinct functions in ignition lead applications. First, it provides mechanical protection — fiberglass braid resists abrasion from metal enclosure edges, burner mounting hardware, and repeated installation access better than bare silicone rubber, which despite its flexibility can be cut or abraded by sharp metal contact. Second, the fiberglass braid provides dimensional stability — preventing the silicone rubber insulation from ballooning or deforming under thermal cycling conditions at the burner proximity routing position. Both functions are essential for reliable long-term ignition lead performance in commercial and industrial combustion equipment.
Protected installation requirement: Style 3304’s UL use classification specifies that the wire must be protected from damage during handling, installation, and servicing of the appliance. This means Style 3304 is not rated for exposed routing paths where direct mechanical impact, crushing, or sustained abrasion without protection is anticipated. In combustion equipment designs where the ignition lead routing path is not fully enclosed, additional protective sleeving or conduit routing should be incorporated at the design stage.
Related UL Styles for Comparison
UL 3304 buyers commonly cross-reference: UL 3573 (200°C / 10,000 Vac silicone rubber with fiberglass braid and outer silicone jacket — dual insulation construction for enhanced mechanical protection in the same ignition application category), UL 1911 (250°C / 50,000 Vdc high voltage DC ignition wire for electronic spark ignition systems generating DC high-voltage pulses), UL 3071 (200°C / 600V silicone rubber, standard voltage silicone wire for non-ignition high-temperature internal wiring), and UL 3239 (200°C / 60,000 Vdc high voltage DC wire for TV and similar high-voltage electronic applications).
Request a Quote — Solicitar Cotización
Submit your AWG, color, spool format, and annual volume estimate below. Our bilingual team responds with a formal cotización within 24 business hours. Wire samples available for ignition system qualification testing upon request.
