Blue Sea Systems 5035 ST Blade Fuse Block – Six Circuits vs Fuse block MRBF 3-circuit common

Overall winner: Blue Sea Systems 5035 ST Blade Fuse Block – Six Circuits

Key Differences

Product A (Blue Sea 5035 ST) provides six independent circuits and includes spare fuse storage with an easy push-button latch, making it better for multi-circuit needs; Product B (MRBF 3Circ) is a more compact, solidly built three-circuit MRBF-style block but requires fuses to be purchased separately

Blue Sea Systems 5035 ST Blade Fuse Block – Six Circuits

Blue Sea Systems 5035 ST Blade Fuse Block – Six Circuits

Blue Sea Systems • ★ 4.3/5 • Mid-Range

Six independent fuse circuits with a cover and positive distribution bus. Includes easy access latch, storage for two spare fuses, and label recesses for small format labels

Pros

  • Positive distribution bus with #8-32 studs
  • Easy open push button latch for fuse access
  • Storage for two spare fuses
  • Label recesses for small format labels

Cons

  • Fuses per circuit limited to 30A
  • Single-block design may require more space for larger systems
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Fuse block MRBF 3-circuit common

Fuse block MRBF 3-circuit common

Blue Sea Systems • ★ 3.9/5 • Mid-Range

Three-circuit fuse block for consolidated high-amperage protection. Supports MRBF fuses and provides power to three loads from a single source; compact, easy to install. Customers note solid build, easy installation, and good performance with solar battery banks

Pros

  • compact form factor
  • easy to install
  • supports three loads from one source
  • sturdy terminal connections

Cons

  • fuses sold separately
  • some find it pricey
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Head-to-Head

CriteriaWinner
Price Blue Sea Systems
Durability Tie
Versatility Blue Sea Systems
User Reviews Blue Sea Systems