Description
Blue Sea 5045 4-Circuit Fuse Block | Boat Supply Store
Manage up to four independent DC circuits with this compact, ignition-protected fuse block, ideal for maintaining essential electrical systems on any vessel. Designed to accept standard ATO® and ATC® blade fuses, it handles a maximum of 100A per block and 30A per circuit at 32V DC. The single-side wiring configuration simplifies installation, particularly within restricted spaces common on smaller craft operating in the Gulf Coast's demanding marine environment.
Key Features
- Compact footprint maximizes available space
- Single-side entry wiring simplifies installation
- Accepts ATO® and ATC® fast-acting blade fuses
- Ignition Protected (ISO 8846 and SAE J1171) for safe operation in gasoline-powered engine compartments
- Insulating cover meets ABYC/USCG insulation requirements
- Tin-plated copper buses and fuse clips ensure superior conductivity and corrosion resistance
- Accepts ring or snap fork type terminals for versatile connection
- Robust 32V DC rating for typical marine electrical systems
Specifications
| Product Specifications | |
|---|---|
| Circuits | 4 |
| Fuse Type | ATO®/ATC® Blade |
| Maximum Amperage per Block | 100A |
| Maximum Amperage per Circuit | 30A |
| Maximum Voltage | 32V DC |
| Mounting Screw Size | #8 |
| Ignition Protected | Yes (ISO 8846 and SAE J1171) |
| Terminal Type | Ring or Snap Fork |
Who This Is For
Boat owners, marine technicians, and DIYers seeking a compact and reliable circuit protection solution for managing up to 4 circuits in marine applications, especially in areas requiring ignition protection.
How It Compares
| Feature | Blue Sea 5045 4-Circuit Fuse Block | Blue Sea Systems |
|---|---|---|
| Circuits | 4 | 6 |
| Maximum Amperage per Circuit | 30A | 30A |
| Maximum Voltage | 32V DC | 32V DC |
| Fuse Type | ATO®/ATC® Blade | ATO®/ATC® Blade |
| Ignition Protected | Yes | Yes |
Common Concerns Answered
Are the screw terminals large enough for heavier gauge wires?
While the screw terminals are designed for standard marine wiring, users with exceptionally large gauge wires may find them to be a tight fit. It is recommended to use appropriate ring terminals and ensure a secure connection.
Is the insulating cover difficult to install?
The included insulating cover meets stringent safety standards and can occasionally be a tight fit depending on the mounting orientation and surrounding components. Careful alignment and application of firm pressure typically ensure a secure fit.
Will this handle a complex electrical system with many components?
The Blue Sea 5045 is optimized for managing up to four circuits; for more extensive electrical systems, users should consider larger capacity fuse blocks from the Blue Sea Systems range to ensure adequate circuit distribution and protection.
Frequently Asked Questions
What type of fuses does the Blue Sea 5045 ST Blade Compact Fuse Block accept?
The Blue Sea 5045 accepts standard ATO® and ATC® fast-acting blade fuses, commonly available in marine supply stores.
What is the maximum amperage per circuit for this fuse block?
Each circuit on the Blue Sea 5045 fuse block is rated for a maximum of 30A.
Is this fuse block ignition protected?
Yes, the Blue Sea 5045 is ignition protected, meeting ISO 8846 and SAE J1171 standards, making it safe for installation in gasoline-powered engine compartments.
What is the maximum voltage rating for the Blue Sea 5045?
The Blue Sea 5045 is rated for a maximum of 32V DC, suitable for most recreational marine electrical systems.
What size screws are used for mounting this fuse block?
The Blue Sea 5045 fuse block is designed to be mounted using #8 screws.
