UL 1911 — The 50,000V DC Extreme Voltage Style
UL 1911 is the highest-voltage Style in CableApex’s UL Recognized wire portfolio, rated for 50,000V DC continuous service. This extreme rating — five times higher than UL 3304 (10kV) and UL 3573 (10kV) ignition wires — addresses a specific class of applications: electronic gas ignitor systems where the spark generation circuit develops voltages in the 20-40 kV range during ignition events.
For German engineers searching UL 1911 high voltage Draht Deutschland Hersteller, this Style is highly specialized. The 50kV rating combined with the 250°C continuous temperature rating addresses requirements that no other UL Style covers: extreme dielectric strength for spark-generation circuits operating in elevated-temperature environments inside gas-fired appliances and industrial gas burners.
“Any Material” Insulation — A Customization-Based Approach
UL 1911’s listing specifies “any material” for insulation construction. This unusual UL listing language means the insulation material is selected at production time based on specific application requirements rather than being fixed by the Style specification. Common insulation choices for UL 1911 production include:
Silicone rubber — Most common choice for general gas ignition applications, providing the 250°C temperature rating and excellent dielectric strength.
EPDM (Ethylene Propylene Diene Monomer) — For applications requiring resistance to specific chemical environments such as natural gas additives, propane combustion byproducts, or industrial process gases.
Crosslinked Polyethylene (XLPE) — For applications prioritizing dielectric stability across temperature swings.
Multi-layer construction — Combination of silicone base with EPDM jacket, or similar multi-material approaches, for applications combining multiple environmental challenges.
This customization flexibility is the key reason UL 1911 is specified for niche applications: each gas ignition equipment OEM may have specific insulation requirements driven by their burner technology, fuel type, and operating environment. CableApex coordinates the insulation material selection with each customer’s specific application requirements during the order specification process.
UL 1911 in German Gas Ignition Equipment Applications
German Gas Appliance Manufacturers producing gas stoves, gas water heaters, gas furnaces, and gas dryers for North American export markets use UL 1911 for the high-voltage wiring between the electronic ignition module and the spark electrode. The 50kV rating provides comfortable margin for the typical 20-30 kV peak spark voltages, while the 250°C rating handles the elevated ambient temperatures near combustion chambers.
German Industrial Gas Burner Manufacturers producing industrial burner systems for North American process heating applications (industrial furnaces, kiln burners, drying equipment burners) use UL 1911 for ignition circuit wiring in burner control assemblies. Industrial burners often require higher spark energies than residential appliances, with peak voltages reaching 30-40 kV during ignition cycles.
German Commercial Cooking Equipment Manufacturers producing commercial gas-fired ovens, fryers, and broilers for US food service distribution use UL 1911 for ignition module connections to spark electrodes inside the cooking chamber environment.
German Gas-Fired Boiler and Heat Exchanger Manufacturers producing commercial gas-fired hydronic heating equipment use UL 1911 for ignition system internal wiring in equipment shipped to US/Canadian commercial buildings.
UL 1911 Specifications
| Parameter | Value (per UL Subject 758) |
|---|---|
| UL Style | AWM 1911 |
| AWG Range | 24 AWG – 10 AWG, solid or stranded |
| Voltage Rating | 50,000V DC |
| Temperature Rating | 250°C continuous |
| Insulation Construction | “Any material” per UL listing — customized to application requirements |
| Common Insulation Choices | Silicone rubber, EPDM, XLPE, multi-layer construction |
| Designated Use | Electronic gas ignitor systems |
| Production Approach | Customization-based, specific insulation selected per OEM application |
| Flame Rating | Horizontal Flame per UL Subject 758 |
| Compliance | UL Subject 758 (AWM), RoHS, REACH |
| Marking | CableApex · UL AWM 1911 · AWG · 50000V DC · 250°C |
Engineering Notes from CableApex
- “How do I specify UL 1911 for my application?” UL 1911 specification involves three customer-specific decisions: (1) AWG size (typically 18-14 AWG for residential appliance ignitors, 14-10 AWG for industrial burner systems), (2) insulation material choice (silicone rubber for most applications; EPDM if specific chemical resistance needed), (3) overall wire diameter constraints based on routing requirements. Send us your application specification including spark module output characteristics, peak voltage, operating temperature range, and routing environment — we coordinate the production specification based on your application.
- “Lead time for customized UL 1911 production?” UL 1911 customization-based production typically requires 35-45 days CIF Hamburg/Rotterdam, longer than standard wire Styles. The additional time covers specification confirmation, insulation material qualification, and production batch verification. For first-time orders, we recommend a phone or video consultation to align on specifications before order placement.
- “Termination considerations for 50kV DC?” Terminations at the 50kV class require high-voltage rated connectors with substantial creepage and clearance distances — typically 50-100 mm depending on environment and altitude derating. Standard low-voltage terminations are absolutely not appropriate. For most gas ignition applications, the wire terminates directly at the spark electrode (which is itself the high-voltage component) and at the ignition module output (typically a captive high-voltage connector or screw terminal with adequate isolation). Consult your ignition module manufacturer’s recommended termination practices.
MOQ, Packaging & Shipping
MOQ for UL 1911 customization-based production: typically 1,000-3,000 m per specific configuration depending on insulation material selected and AWG. Standard packaging: spools or reels per customer specification. Export documentation: Commercial Invoice, Packing List, Certificate of Origin (CCPIT), Bill of Lading, UL Recognition reference letter, RoHS Declaration, REACH SVHC Declaration, MSDS. HS Code: 8544.49. CIF Hamburg or Rotterdam, transit time 35–45 days from Shanghai or Ningbo origin port.
Related UL High-Voltage Styles
UL 1911 buyers commonly cross-reference: UL 3304 (200°C / 10,000V silicone rubber, 22-12 AWG — 10kV ignition wire for lower-voltage spark systems), UL 3573 (200°C / 10,000V three-layer silicone, ignition applications — alternative 10kV construction), UL 3239 (150°C / 5000V DC silicone, 32-4/0 AWG — for medium-voltage DC applications below ignition class), and UL 10269 (105°C / 1000V PVC, 30-2000 kcmil — for standard high-voltage industrial wiring).
