





- Stock: In Stock
- Model: B09XT6MFPQ
- SKU: B09XT6MFPQ
- ISBN: B09XT6MFPQ
Available Options
About this item
- Voltage Max. Operating: 32V DC, Amperage Max. Operating: 80A per block / 25A per circuit, Fuse Type ATO or ATC fuses & circuit breakers, Input Wire Size: (1) 8 AWG to 4 AWG, Load Wire Size: (4) 16 AWG to 10 AWG, Bus Material: Tin-Plated Copper C11000, Mounting Thru-hole: Accepts 1/4" (6mm) screws, Screw terminal: 4x 8-32 Screws with captive star lock washer, Stud terminal: 1 x 10-32
- Water-resistant design with standard ring or spade type terminals allows for simple wiring with standard tools
- Accepts a wide range of wire sizes, ATO and ATC fast-acting blade fuses, and ATO/ATC-Style Low Profile Circuit Breakers
- Includes 3 wire plugs to maintain water resistant rating if less than 4 loads are required and 4 write-on circuit labels
- Wing-screws designed for tool-free installation of cover to meet ABYC compliance
- Nests with other ST-Blade Water-Resistant Fuse Blocks and Water-Resistant 100A Bus Bars to reduce wire
- Fuses and circuit breakers sold separately. Storeage for spare fuse and fastener in cover
From the manufacturer


ST-Blade Fuse Blocks
Consolidates branch circuits and in-line fuses
The ST Blade Fuse Block was designed with fastener terminals to comply with ABYC Recommended Practices, and are built with tin-plated copper components for improved conductivity and lower operating temperatures. An optional cover protects the conductive surfaces from accidental shorting, labels each circuit, and stores spare fuses.
The ST Blade Fuse Block is ideal for use as a sub-panel in the DC distribution system. This solves the problem of using large and expensive circuit breaker panels as circuit protection for electronics and other branch circuits. With most circuit breaker panels a circuit breaker and an inline fuse are used for to protect electronic devices. By instead utilizing Blue Sea Systems ST Blade Fuse Block as a sub-panel, fuses more appropriate for electronics can be used, removing the need for inline fuses while only utilizing one position on the panel. This reduces the size of the panel needed and lowers the overall system cost.
- Independent and/or Common Source fuse block
- Fastener terminals for securing wires accept terminal rings
- One-piece stainless flange nuts ensure safe and secure connections
- Clear insulating cover with label recess satisfies ABYC/USCG insulation requirements
- Accepts ATO and ATC fast acting blade fuses (sold separately)
- Some models ignition protected or ingress protected
![]() |
![]() |
![]() |
![]() |
![]() |
![]() | |
---|---|---|---|---|---|---|
4-Circ Term Mount w/Cover | 4-Circ Term Mount w/Cover & Neg | 4-Circ w/Cover | 8-Circ w/Cover | 4-Circ H20 w/Manual Cover | 4-Circ H20 w/Twist Cover | |
Part Number | 5023 | 5024 | 5045 | 5046 | 5056 | 5056100 |
Number of Circuits | 4 | 4 | 4 | 8 | 4 | 4 |
Maximum Voltage | 32V DC | 32V DC | 32V DC | 32V DC | 32V DC | 32V DC |
Maximum Amperage | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 25A per circuit/ 80A per block | 25A per circuit/ 80A per block |
Battery Terminal Mount | ✓ | ✓ | ||||
Ground Bus | ✓ | |||||
Includes Cover | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Common Source | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
Ingress Protection | IP66 – protected against powerful water jets | IP66 – protected against powerful water jets | ||||
Ignition Protected | ✓ | ✓ | ✓ | ✓ |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() | |
---|---|---|---|---|---|---|
6-Circ Ind w/Cover | 6-Circ Ind No Cover | 6-Circ w/Cover & Neg | 6-Circ No Cover w/Neg | 6-Circ w/Cover | 6-Circ No Cover | |
Part Number | 5035 | 5037 | 5025 | 5030 | 5028 | 5033 |
Number of Circuits | 6 | 6 | 6 | 6 | 6 | 6 |
Maximum Voltage | 32V DC | 32V DC | 32V DC | 32V DC | 32V DC | 32V DC |
Maximum Amperage | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block |
Includes Terminal Block Jumpers | ✓ | ✓ | ||||
Ground Bus | ✓ | ✓ | ||||
Includes Cover | ✓ | ✓ | ✓ | |||
Common Source | ✓ | ✓ | ✓ | ✓ | ||
Independent Source | Independent – circuits can be jumpered to be common source | Independent – circuits can be jumpered to be common source |
![]() |
![]() |
![]() |
![]() |
![]() | |
---|---|---|---|---|---|
12-Circ w/Cover & Neg | 12-Circ No Cover w/Neg | 12-Circ w/Cover | 12-Circ No Cover | 12-Circ Split w/Cover & Neg | |
Part Number | 5026 | 5031 | 5029 | 5034 | 5032 |
Number of Circuits | 12 | 12 | 12 | 12 | 12 |
Maximum Voltage | 32V DC | 32V DC | 32V DC | 32V DC | 32V DC |
Maximum Amperage | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block | 30A per circuit/ 100A per block |
Split Bus | Provides two isolated groups of six circuits | ||||
Ground Bus | ✓ | ✓ | ✓ | ||
Includes Cover | ✓ | ✓ | ✓ | ||
Common Source | ✓ | ✓ | ✓ | ✓ | ✓ |
Independent Source | ✓ |