Blue Sea Systems 5028 ST Blade Fuse Block 6 Circuit - Covered 100 Amp

In this review the Blue Sea Systems 5028 ST Blade Fuse Block is judged on practicality and build quality for small electrical installations. The bottom line: this covered, six-circuit fuse block is for anyone who needs a compact, code-friendly way to add fused branch circuits close to loads, and the single biggest reason to buy is its combination of a positive distribution bus and a covered design that satisfies ABYC/USCG insulation requirements while keeping wiring neat.

Key Features

• Consolidates circuits: Combines branch circuits and in-line fuses into a single, space-saving module so accessory wiring stays organized and accessible.
• Positive distribution bus: The included #10-32 stud provides a secure main feed point that simplifies connecting a single breaker or battery feed.
• Covered design: The insulating cover meets ABYC/USCG expectations and protects fuses and connections in marine or mobile environments.
• Easy access latch: A push button latch lets you open the cover quickly for fuse changes while keeping spares stored inside the unit.
• Tin-plated copper buses: Corrosion-resistant buses and fuse clips improve conductivity and long-term reliability in harsh environments.

Who It's For

The 5028 ST is aimed at boat owners, RV installers, and anyone creating small electrical add-ons who needs a tidy, code-compliant way to add fused circuits without a full panel. It is particularly useful when a distribution panel has no spare breakers or when electronic installations require a compact, local fuse point.

Those who should look elsewhere include people needing more than six circuits, integrated circuit breakers, or remote-monitoring smart distribution; for larger installations a full breaker panel or a different multi-bank solution would be more appropriate.

Pros & Cons

Pros

• Solid build quality and tin-plated copper buses give reliable connectivity and resist corrosion.
• Covered design and push button latch provide easy access while meeting ABYC/USCG insulation needs.
• Includes storage for two spare fuses and neat label recesses for clear circuit ID.

Cons

• Only six circuits are available, so it is not suitable for larger systems that need many fused outputs.

Specifications

Our Verdict

The 5028 ST blade fuse block is a practical, well-built solution for small to medium accessory installations where a covered, code-friendly fused distribution point is needed. It offers clear value for boat, RV, and DIY electrical work thanks to its positive bus, durable tin-plated components, and tidy storage features; buy it when you need six protected circuits close to the loads.

Frequently Asked Questions

Can this accept standard blade fuses?
Yes, it accepts ATO/ATC blade fuses ranging from 1 amp to 40 amps for each circuit.

Does the cover meet marine insulation standards?
Yes, the cover is designed to satisfy ABYC and USCG insulation requirements for protected terminals.

Can it be fed from a single breaker or battery?
Yes, it can be fed from one breaker or a battery feed using the positive distribution bus with the #10-32 stud.