The V8D2UHNB-00000-000 is a Contura IP66/68 sealed rocker switch manufactured by Carling Technologies, a Littelfuse brand, engineered for demanding environments in marine, transportation, armored vehicles, and mining applications. This switch features snap-in mounting with an 8-terminal base configuration and interchangeable actuators, allowing flexible panel design with minimal inventory changes. The device has been rigorously tested to meet MIL Std 202F, MIL Std 510.1, UL 1500, ISO 8846, IEC 60529, and BS 5490 standards, demonstrating exceptional ruggedness against environmental, corrosion, temperature, vibration, shock, and sealing challenges. With a compact footprint (1.370 inches height, 0.960 inches width) and robust terminal arrangement, this switch provides reliable on/off control in harsh conditions where sealing protection is critical. The interchangeable rocker design enables users to achieve maximum design variety while maintaining consistent electrical performance across multiple panel configurations.