Blue Sea Systems 5028 ST Blade Fuse Block with Cover, 6 Circuit, Without Negative Bus, 30 Amp

The Blue Sea Systems 5028 is a 6 circuit ST blade fuse block with cover, built for organizing and protecting individually fused circuits on a boat's DC electrical panel. Because it ships without a negative (ground) bus, it is intended for installations where each circuit's return path is wired independently rather than tied to a shared common bus bar, giving the installer full control over how negative connections are routed. Each of the six positions accepts standard ST (mini) blade fuses and is rated to carry up to 30 amps per circuit, making the block suitable for a wide range of accessory, lighting, pump, and electronics circuits. Screw-type connectors secure the incoming and outgoing wiring at each position for a solid, vibration-resistant termination. The block is molded from plastic with an upper temperature rating of 125 degrees Celsius, and the included cover helps shield the live terminals and fuses from accidental contact and stray splash. Compact at 2 inches wide by 1.5 inches high, the 5028 mounts to a bulkhead or panel surface, keeping fuse blocks and circuit wiring tidy in tight helm, console, or engine compartment spaces. It is a straightforward upgrade or replacement for boaters standardizing on Blue Sea Systems fuse blocks throughout a DC distribution system.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 5028
• Current Rating: 30 Amps
• Number of Circuits: 6
• Connector Type: Screw
• Mounting Type: Wall Mount
• Material: Plastic
• Product Dimensions: 2 inches W x 1.5 inches H
• Upper Temperature Rating: 125 Degrees Celsius
• Weight: 0.42 pounds
• UPC: 632085050283

Frequently Asked Questions

How many circuits does the Blue Sea Systems 5028 fuse block have? The 5028 has 6 individual circuit positions, each accepting a standard ST blade fuse rated up to 30 amps.

Does the 5028 include a negative bus bar? No. The Blue Sea Systems 5028 ships without a negative bus, so each circuit's negative return must be wired independently rather than connected to a shared common bus.

What size fuses does this fuse block use? It uses standard ST (mini) blade-style fuses, with each of the 6 positions rated for up to 30 amps.

Does the 5028 come with a cover? Yes, the 5028 includes a cover that shields the live terminals and fuses from accidental contact and splash.

What type of wire connection does the 5028 use? Each circuit position on the Blue Sea Systems 5028 terminates with a screw-type connector for securing incoming and outgoing wiring.

What material is the Blue Sea 5028 fuse block made from? The 5028 fuse block body and cover are made of plastic, rated for use up to 125 degrees Celsius.

How is the 5028 mounted? The 5028 is a wall-mount fuse block, designed to be fastened to a bulkhead or panel surface.

What are the dimensions of the Blue Sea 5028 fuse block? The Blue Sea Systems 5028 measures 2 inches wide by 1.5 inches high.

How much does the 5028 fuse block weigh? The 5028 weighs 0.42 pounds.

Is the Blue Sea 5028 suitable for a boat's DC electrical system? Yes, the 5028 is designed as a marine DC fuse block for organizing and individually fusing multiple accessory or lighting circuits on a boat.

What is the UPC for the Blue Sea Systems 5028? The UPC for the Blue Sea Systems 5028 fuse block is 632085050283.