V8D1W66B-00000-000 is a sealed V-Series Contura rocker switch designed for demanding marine and transportation environments. The switch features IP66 certification with dual seals around lamps and rocker stem, silver-plated butt contact mechanism rated for over 100,000 electrical cycles, and grease-less construction that withstands temperature extremes down to -40°C. It accommodates up to 10 terminals with endless illumination and circuit configuration options, and has passed rigorous environmental testing including MIL Std 202F, MIL Std 810C, UL 1500, ISO 8846, IEC 60529, and BS 5490. This switch is ideal for applications requiring maximum reliability, corrosion resistance, and rugged performance in harsh operating conditions.