This heavy-duty KCD4 rocker switch is engineered for demanding applications requiring reliable power control. Rated for 30A current capacity, it features a robust 4-pin design housed in durable black plastic construction. The illuminated toggle provides clear operational status visibility in low-light conditions, while the waterproof design makes it ideal for marine vessels and outdoor installations where moisture resistance is crucial. The latching on/off mechanism delivers consistent performance with each activation, maintaining its selected state until deliberately switched. This professional-grade switch measures up to industrial standards with its sturdy construction and emergency operation capability. Perfect for boat panels, industrial machinery, or any application demanding dependable high-current switching in challenging environments. The ergonomic design allows for easy operation even with gloved hands, while the illuminated indicator helps prevent accidental operation by clearly showing the switch position. Installation is straightforward with standard mounting configurations and clearly marked connection points.