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Blue Sea 5030 ST Blade Fuse Block w/o Cover - 6 Circuit w/Negative Bus [5030]

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Regular price
$56.79
Regular price
$67.99
Sale price
$56.79
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SKU: CWR-20431   UPC: 632085050306

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Fuse blocks organize six ATO/ATC circuits for marine, RV, and automotive DC electrical systems, with a built-in negative bus that simplifies return-wire connections.

The Blue Sea Systems 5030 ST Blade Fuse Block accepts fast-acting ATO and ATC blade fuses for straightforward circuit protection. Tin-plated copper buses and fuse clips support up to 30 amperes per circuit. Its six-circuit layout helps consolidate accessory wiring in boats, RVs, and vehicles while the negative bus provides a dedicated connection point for DC returns. This version is supplied without a cover.

  • Six-circuit layout: Organizes multiple fused DC accessory circuits in one compact block.
  • ATO/ATC compatibility: Accepts common fast-acting blade fuses for straightforward fuse selection and replacement.
  • 30-ampere rating per circuit: Supports circuits requiring up to the stated per-circuit rating.
  • Tin-plated copper buses and fuse clips: Provides the conductive bus and fuse-contact surfaces used for circuit distribution.
  • Integrated negative bus: Gives connected DC circuits a dedicated negative-return connection point.
  • Coverless configuration: Provides direct access to the fuse positions where an uncovered installation is appropriate.

The 5030 is suited to consolidating fused accessory wiring in boats, recreational vehicles, and automotive electrical projects. Connect the incoming positive supply to the fuse block, install the appropriate ATO or ATC fuse for each branch circuit, and use the integrated negative bus for return connections. The six-circuit format keeps fuse locations together, making circuit identification and service more manageable than scattered inline holders.

Tin-plated copper buses and fuse clips provide the conductive pathways for the six circuits, with a stated rating of 30 amperes per circuit. Because this model does not include a cover, select an installation location and enclosure arrangement appropriate for the surrounding environment and wiring layout. Fuses are selected separately to match each connected circuit.

Brand Blue Sea Systems
Model 5030
Product type Fuse block
Fuse type ATO/ATC fast-acting blade fuses
Circuits 6
Negative bus Included
Maximum per circuit 30 A
Material Tin-plated copper buses and fuse clips
Cover Not included
Dimensions 2 in H x 4 in W x 8 in L
Weight 0.5 lb
SKU CWR-20431
UPC 632085050306
  • Which fuses does this block accept?
    It accepts ATO and ATC fast-acting blade fuses.
  • How many circuits does it support?
    The block provides six fused circuits.
  • Does it include a negative bus?
    Yes. A negative bus is included for DC return connections.
  • Does this model include a cover?
    No. The 5030 is the coverless version.
  • Where can it be used?
    It is intended for organizing fused DC accessory circuits in marine, RV, and automotive applications.
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Blue Sea 5030 ST Blade Fuse Block w/o Cover - 6 Circuit w/Negative Bus [5030]