Blue Sea 5056 ST-Blade Water Resistant Fuse Block w/Cover

The Blue Sea 5056 ST-Blade Water Resistant Fuse Block with Cover is purpose-built for professionals who demand reliable circuit protection in demanding electrical environments. Whether you're outfitting a tactical vehicle, mobile command center, or marine platform, this compact fuse block delivers the weatherproof protection required in field operations where moisture and vibration present constant threats to electrical integrity. Designed for both ATO/ATC fuses and circuit breakers, this unit handles the electrical demands of modern tactical and emergency response equipment.

The single-side nesting design maximizes internal space efficiency while allowing wire entry from one side only, eliminating confusion during installation and reducing the risk of cross-wiring in time-critical scenarios. The water-resistant construction protects against rain, saltwater spray, and condensation—critical factors in maritime, coastal, or outdoor tactical deployments. With compact dimensions of 8 x 2 x 8 inches and a lightweight 0.65-pound profile, this fuse block integrates seamlessly into space-constrained installations without adding significant weight or bulk. The integrated cover safeguards exposed terminals and fuses from accidental contact and environmental contamination.

Law enforcement and military personnel benefit from this block's reliability in vehicle retrofit applications, emergency response trailers, and portable power distribution systems. Field technicians appreciate the straightforward nesting layout during installation and troubleshooting, reducing setup time in high-pressure situations. Compatible with standard ATO/ATC fuses and modern circuit breakers, this unit provides drop-in compatibility with existing electrical architectures. The durable construction withstands vibration, temperature fluctuations, and harsh environmental exposure, making it ideal for off-road vehicles, marine platforms, and field-deployed systems where conventional fuse blocks fail.