UL 3304 High Voltage Ignition Wire

UL 3304 High Voltage Ignition Wire — 200°C / 10,000 Vac, Silicone Rubber + Fiberglass Braid

UL Style 3304 is the silicone rubber high-voltage ignition wire within UL Subject 758 — specifically certified 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 delivers the complete construction package required for reliable ignition lead wiring in commercial and industrial combustion equipment.

Technical Specifications — UL Style 3304

Five Key Application Scenarios

• Residential gas range ignition leads — spark electrode lead wires in residential gas stoves and cooktops connecting the electronic ignition control module to spark plug electrodes at each burner position. The 10,000 Vac rating handles the high-voltage pulse generated by the ignition module while the 200°C silicone rubber insulation survives sustained radiant heat from the gas burner crown.
• Commercial gas burner systems — high-voltage ignition leads in commercial gas range burners, wok burners, and salamander grills used in restaurants and institutional food service operations, where reliable ignition performance under continuous heavy-use conditions and proximity to open flame requires both the 10kVac dielectric rating and 200°C thermal capability simultaneously.
• Fuel oil boiler ignition wiring — ignition electrode lead wires in fuel oil fired industrial boilers used for steam generation in food processing plants and manufacturing facilities, 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.
• Industrial gas-fired process equipment — ignition system wiring in industrial gas burners for drying ovens, paint curing systems, and process heating equipment, where automatic re-ignition systems require UL-recognized high-voltage wire that maintains insulation integrity in proximity to sustained open flame environments.
• HVAC gas heating unit ignition — spark igniter lead wiring in residential and commercial gas furnaces, rooftop heating units, and gas-fired make-up air handlers, 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.

UL 3304 vs UL 3573 vs UL 1911 — Ignition Wire Comparison

All three styles serve high-voltage ignition applications but differ in construction, voltage type, and mechanical protection level:

AC vs DC Ignition Voltage — Selecting the Right Style

The most common specification error in ignition wire selection is confusing AC and DC voltage ratings. Style 3304 and 3573 are rated 10,000 Vac — 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 1911 carries a DC voltage rating up to 50,000 Vdc — for electronic spark ignition modules that generate DC high-voltage pulses, typical in residential gas appliances. Confirm the output waveform type of your ignition system before specifying between these styles.

Available Product Pages — UL 3304 by Market

Select a product page below for market-specific specifications, pricing guidance, and export documentation details: