Description
Blue Sea 5503 ANL 750 Fuse Block | Boat Supply Store
Protect high-amperage circuits on your vessel with the Blue Sea 5503 ANL 750 Fuse Block, engineered for demanding 32V DC marine applications. This robust block utilizes insert-molded studs and stainless steel terminals for secure, corrosion-resistant connections, capable of handling up to 750 amps. Its UL 94-V0 base provides superior heat resistance, critical for systems powering powerful trolling motors or auxiliary electronics on offshore sportfishers operating in harsh saltwater environments. The innovative swing-out design facilitates straightforward fuse replacement without requiring disassembly of terminal connections.
Key Features
- Corrosion-Resistant stainless steel studs for reliable electrical contact.
- High Heat Resistance from UL 94-V0 rated base material.
- Secure Fuse Mounting due to insert-molded studs.
- Easy Fuse Access with a swing-out design for simplified replacement.
- Compliant Design with an insulating cover meeting ABYC/USCG requirements.
- Versatile Wire Routing via cover breakouts allowing access in any direction.
- Accepts Standard Terminals with 5/16" (M8) ring terminal compatibility.
- High Amperage Capacity suitable for 750A ANL fuses on 32V DC systems.
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 5503 |
| Fuse Type | ANL |
| Amperage Rating | 750A |
| Voltage Rating | 32V DC |
| Terminal Size | 5/16" (M8) |
| Base Material | UL 94-V0 |
| Cover Included | Yes |
| Stud Material | Stainless Steel |
Who This Is For
Ideal for marine electricians and boat owners undertaking significant electrical upgrades or installations requiring robust protection for high-draw systems up to 750 amps on 32V DC circuits. DIYers seeking a safe and reliable method for fusing primary DC power feeds will also find this component essential.
How It Compares
| Feature | Blue Sea 5503 ANL 750 Fuse Block | Competitor |
|---|---|---|
| Max Amperage | 750A | 300A, 750A |
| Max Voltage | 32V DC | 32V DC, 32V DC |
| Terminal Size | 5/16" (M8) | 3/8" (M10), 3/8" |
| Cover Included | Yes | Yes, No |
| Fuse Replacement Design | Swing out design | Standard, Standard |
Common Concerns Answered
The fuse block doesn't include fuses. Is this a common practice?
Yes, fuse blocks are typically sold separately from fuses to allow boaters to select the precise amperage rating required for their specific circuit protection needs. This ensures optimal safety and system functionality.
Are the 5/16" (M8) ring terminals sufficient for heavy gauge marine wiring?
The 5/16" (M8) terminal size is a standard specification for ANL fuse applications up to 750 amps and is generally sufficient for the wiring gauges typically used in such high-amperage marine circuits. For exceptionally large gauge wires, consult specific system requirements and potentially consider adapter terminals if needed.
Is the price a concern compared to other options?
While the Blue Sea 5503 may have a higher initial price point than some basic fuse holders, its advanced features like the swing-out design, superior materials, and robust construction offer enhanced safety and long-term reliability, justifying the investment for critical marine electrical systems.
Frequently Asked Questions
What is the maximum voltage this fuse block can handle?
This Blue Sea 5503 ANL 750 Fuse Block is designed for systems up to 32 Volts DC.
What type of ring terminals are compatible with this fuse block?
This fuse block accepts standard 5/16" (M8) ring terminals.
Does the fuse block come with fuses included?
No, the ANL fuses are sold separately and must be purchased according to the circuit's amperage requirements.
What are the dimensions of the Blue Sea 5503 ANL 750 Fuse Block?
Please refer to the product manual at https://www.bluesea.com/products/5503/ANL_Fuse_Block_with_Cover_-_750A for detailed dimensional drawings and specifications.
Is the insulating cover included with this fuse block?
Yes, this model (Blue Sea 5503) includes an insulating cover that meets ABYC/USCG requirements and features directional wire access breakouts.
