Blue Sea Systems 5031 ST Blade Fuse Block with o Cover – 12 Circuit with Negative Bus

Blue Sea Systems 5031 ST Blade Fuse Block with o Cover – 12 Circuit with Negative Bus is a Blue Sea Systems fuse block built for fuse-based circuit protection and distribution. Designed for marine environments, it supports reliable performance, clean installation, and long service life in demanding onboard electrical systems.

5031 ST Blade Fuse Block w/out Cover – 12 Circuit w/ Negative Bus Tin-plated copper buses and fuse clips give 30 Amperes rating per circuit Accepts ATO and ATC fast acting blade fuses .

Key specs: Circuit Count: 12.

Ideal for builders, refit projects, and serious boat owners who want marine-grade electrical hardware from a trusted brand.