UL File #E555259 · NEC Article 600
Inspector-Ready UL 48 & NEC 600 Compliance
Basis Sign LLC fabricates illuminated channel letters, raceways, and architectural light boxes under UL Standard 48 (File #E555259) and National Electrical Code (NEC) Article 600—ensuring rapid municipal sign permit approval across all 50 US states.
- Serialized UL 48 hologram applied directly on housing / raceway
- UL Class 2 Mean Well® IP67 drivers (120–277VAC)
- Permitting spec sheets & amperage schedules supplied before shipping
Blind Trade Fulfillment & UL 48 QC
Unmarked Wood Crates, Foam Packout & UL 48 Bench Test
Toggle Circuit Live / Disconnect Open to verify factory LED load testing alongside the Mean Well® IP67 Class 2 driver and 1:1 installation blueprint.
Authority Having Jurisdiction (AHJ) Verification
6-Point Municipal Inspection Checklist
01 / UL 48 FILE #E555259
Serialized UL Standard 48 Hologram Labels
Every BASISSIGN illuminated channel letter set, raceway, and light box carries an official serialized UL 48 label traceable to Basis Sign LLC (UL File #E555259) for Authority Having Jurisdiction (AHJ) verification.
02 / NEC ARTICLE 600
Factory-Installed Watertight Disconnect Switch
Raceways and sign cabinets include UL-recognized externally operable disconnect switches per NEC Article 600.6, allowing service technicians to isolate primary power directly at the sign.
03 / CLASS 2 POWER
Mean Well® IP67 UL Listed Class 2 Drivers
All low-voltage 12VDC/24VDC LED circuits are driven by Mean Well® Class 2 IP67 waterproof power supplies (120–277VAC universal input) with overload and thermal protection.
04 / WET-LOCATION
Precision Drain Holes & Silicone Sealing
Exterior wet-location letters include CNC-punched bottom weep/drain holes, sealed wire pass-through bushings, and UV-resistant neutral-cure silicone baffling.
05 / FLAME & METAL
0.040″–0.080″ Marine Aluminum & UL Acrylic
Housings are fabricated from non-combustible 3003/5052 aluminum or 304/316 stainless steel paired with UL-recognized 3M™ / Acrylite® sign-grade cast acrylic.
06 / INSTALL BLUEPRINT
1:1 CNC Pattern & Load-Sized Electrical Specs
Every shipment includes a full-scale 1:1 mounting pattern, amperage/wattage electrical callout table for city permit submittals, and non-corrosive mounting hardware.
Technical & Permit FAQ
Answers for Inspectors, Sign Shops & Business Owners
Direct engineering specifications covering UL Standard 48 certification (#E555259), NEC Article 600 disconnects, blind trade shipping, and installation deliverables.
Yes. Basis Sign LLC manufactures illuminated signs under UL Standard 48 (UL File #E555259) and NEC Article 600 requirements. Every illuminated sign ships with serialized UL labels, UL-recognized IP67 LED modules, Mean Well® Class 2 power supplies, and watertight disconnect switches ready for Authority Having Jurisdiction (AHJ) inspection.