Blue Sea Systems Terminal Fuse 5185, 150 Amp Orange, DC Main Circuit Protection

The Blue Sea Systems Terminal Fuse 5185 is a 150 amp, orange-coded terminal fuse designed for DC main circuit protection on large marine battery banks. It carries a 10,000 AIC (Amps Interrupting Capacity) rating at 14 volts DC, satisfying ABYC requirements for DC main circuit protection. The fuse body is molded plastic and includes a clear window that gives a visual indication when the fuse has blown, so a quick look confirms circuit status without needing to remove the fuse for testing. It is ignition protected, making it safe for installation aboard gasoline-powered boats where spark containment matters.

This terminal fuse is not mounted directly to a battery terminal. It must be installed in a compatible Terminal Fuse Block, specifically PN 5191 or PN 2151, which is sold separately and provides the mechanical mounting and electrical connection points for the fuse. Blue Sea Systems offers this terminal fuse line across a range of amperages, each identified by a distinct color for fast visual identification at a glance, with the 150 amp rating marked in orange.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 5185
• Amperage: 150 Amps
• Color: Orange
• Voltage Rating: 14 Volts DC
• Interrupt Rating: 10,000 Amps Interrupting Capacity (AIC) at 14 Volts DC
• Material: Plastic
• Item Dimensions: 4 x 3 x 1 inches
• Weight: 0.06 pounds
• Mounting Type: Through-Hole Mount
• UPC: 632085051853
• Compatible Fuse Blocks: Terminal Fuse Block PN 5191 or PN 2151 (required, sold separately)

Fitment

Universal DC main circuit protection component for large battery banks; not tied to a specific boat make, model, or engine.

Replaces (OEM)

No OEM cross-reference numbers apply to this part.

Frequently Asked Questions

What amperage is the Blue Sea Systems 5185 terminal fuse? The 5185 is rated at 150 amps, and it is color-coded orange so it can be identified visually within Blue Sea Systems' terminal fuse lineup.

Can the 5185 fuse be mounted directly to a battery terminal? No, the 5185 terminal fuse must be installed in a Terminal Fuse Block, specifically PN 5191 or PN 2151, and should never be mounted directly to a battery terminal.

What is the interrupt rating of this fuse? The Blue Sea Systems 5185 has a 10,000 AIC (Amps Interrupting Capacity) rating at 14 volts DC, which satisfies ABYC requirements for DC main circuit protection on large battery banks.

Is the 5185 fuse safe for gasoline-powered boats? Yes, the 5185 terminal fuse is ignition protected, meaning it is safe for installation aboard gasoline-powered boats.

How do I know if the 5185 fuse has blown? The fuse body has a clear window that gives a visual indication of a blown condition, so the status of the 5185 can be checked at a glance without removing it.

What material is the 5185 terminal fuse made of? It is constructed of plastic, per Blue Sea Systems' specifications for the terminal fuse line.

What are the dimensions and weight of the 5185 fuse? The 5185 measures 4 x 3 x 1 inches and weighs 0.06 pounds.

Does the color of Blue Sea Systems terminal fuses indicate amperage? Yes, each amperage in the Blue Sea Systems terminal fuse line has a distinct color; the 150 amp rating of the 5185 is marked orange, distinguishing it from other amperages such as 100A yellow or 125A green.

Is this fuse intended for a specific boat make or model? No, the 5185 terminal fuse is a universal DC main circuit protection component for large battery banks and is not tied to a specific boat make, model, or engine.

What is included with the Blue Sea Systems 5185? The 5185 ships as the terminal fuse itself; the required Terminal Fuse Block (PN 5191 or PN 2151) is sold separately and is not included.

What is the UPC for the Blue Sea Systems 5185 fuse? The UPC for the 150 amp orange terminal fuse, part number 5185, is 632085051853.