Blue Sea ST CLB Circuit Breaker Block - 6 position with Negative Bus

The Blue Sea ST CLB Circuit Breaker Block – 6 Position with Negative Bus (Model 5052-BSS) is the backbone of any modern marine electrical system, whether you're running a fishing platform, cruising center console, or full-displacement cruiser. After years on the water, you know that reliable power distribution isn't optional—it's survival. This panel consolidates circuit protection and negative bussing into one compact assembly, eliminating the need for separate components and saving valuable helm real estate.

Built to Blue Sea Systems' exacting marine standards, this circuit breaker block features tin-plated copper busses and screw terminals that resist corrosion in saltwater environments—critical for long-term reliability in spray zones. The six quick-connect clip design allows individual circuit breakers to snap securely into place without tools, making both initial installation and future upgrades or troubleshooting fast and straightforward. A clear insulating cover with square format labeling protects connections while keeping your electrical diagram visible and organized, reducing confusion when diagnosing issues underway.

This assembly is ideal for anglers and cruisers who run multiple electronics—GPS plotters, trolling motors, bilge pumps, lighting, and auxiliary loads—requiring individual circuit protection and a solid negative return path. The integrated negative bus eliminates the need for custom ground fabrication, simplifying wiring and improving system integrity. Weighing just 0.75 lbs, it mounts easily in engine compartments or electrical cabinets, and works seamlessly with Blue Sea Systems breakers and marine-grade wiring standards.