Blue Sea 5191 Terminal Fuse Block 30-300AMP [5191]
Description
Description
Blue Sea 5191 Terminal Fuse Block 30-300A [5191]
This fuse block handles high-current DC circuits in compact spots on your boat. It uses a standard 5/16-inch stud for easy stacking and connection, so you get reliable protection for mains, inverters, or windlasses without taking up much room. The weatherproof design and insulating cap keep it safe in open cockpits or rough conditions, cutting down on shorts and failures.
Key Features
- Isolated stud design lets you stack terminals with standard 5/16-inch hardware for flexible wiring
- Covers 30-300 amps to protect big loads like DC mains, inverters, windlasses, and bow thrusters
- Compact size fits tight panels without sacrificing high-current capacity
- Weatherproof build works in exposed areas like open cockpits or harsh marine setups
- Insulating cap snaps onto block accidental shorts from tools or spray
- Accepts 5/16-inch or 3/8-inch ring terminals for secure, common connections
- Rated up to 58V DC for use in 12V, 24V, or 48V systems
- Supports up to 75 in-lb torque to hold connections tight under vibration
Perfect For
- Small boats with limited panel space needing main circuit protection
- Inverter installs on center consoles or bass boats
- Windlass or bow thruster wiring in offshore setups
- Open-cockpit vessels exposed to spray and weather
- Upgrading fuse protection in 12V or 24V marine electrical systems
Technical Specifications
| Feature | Specification |
|---|---|
| Maximum Amperage | 300A |
| Maximum Voltage | 58V DC |
| Terminal Stud | M8 (5/16") |
| Maximum Torque | 75 in-lb |
| Ignition Protected | No |
| Fuse Range | 30-300A |
| Mounting Style | Panel or bulkhead |
| Material | Reinforced thermoplastic |
| Weatherproof Rating | IP66 equivalent for exposed use |
What’s in the Box
- Blue Sea 5191 terminal fuse block
- Insulating cap
- Installation instructions
Frequently Asked Questions
- Is this fuse block weatherproof? Yes, it's built for open cockpits and harsh environments to handle spray and moisture.
- Can I use it for inverters? Yes, it protects high-amp DC mains like inverters up to 300A.
- Does it fit standard ring terminals? Yes, it takes 5/16-inch or 3/8-inch rings for easy connections.
- What's the voltage limit? It works up to 58V DC, so it's good for 12V, 24V, or 48V setups.
- Is it ignition protected? No, so keep it away from fuel sources.
Why Choose Blue Sea 5191 Terminal Fuse Block? Boaters go with this for its no-nonsense protection in spots where space is tight and loads are heavy. The simple stud and cap design makes installs quick and keeps wiring safe from shorts in real-world conditions. It adds real peace of mind without extra bulk or cost.
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications:
- Fuse Type: Terminal
- Type: Fuse Blocks
- Box Dimensions: 1"H x 4"W x 6"L WT: 0.5 lbs
- UPC: 632085051914
Blue Sea 5191 Terminal Fuse Block 30-300AMP [5191]
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