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Blue Sea 3-Circuit MRBF Fuse Block with Common Negative and Clip-On Insulating Cover
Blue Sea 3-Circuit MRBF Fuse Block with Common Negative and Clip-On Insulating Cover
Suits 3-Output Chargers | ABYC/USCG Compliant | Fuses Sold Separately
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$107.08
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DESCRIPTION
Consolidated High-Amperage Circuit Protection for Multi-Output Systems
Managing multiple high-current circuits in confined spaces such as boat bilges, caravan battery compartments, and 4WD canopy setups often leads to cluttered wiring and increased risk of short circuits. The Blue Sea Systems 3-Circuit Marine Rated Battery Fuse (MRBF) Block solves this issue by consolidating three independent fused circuits and a shared ground connection into a single, compact footprint. Specifically engineered with a common negative configuration, this terminal fuse block is the ideal interface for three-output battery chargers, allowing installers to protect multiple charging lines while maintaining a centralised, accessible ground point.
Engineered for Safety and Compliance
Unlike standard non-isolated distribution blocks that leave live terminals exposed or require multiple individual fuse holders, this unit is supplied with a clear clip-on insulating cover. This protective cover satisfies strict ABYC and USCG insulation requirements, preventing accidental tool drops or loose wires from causing dangerous electrical shorts while still allowing for quick visual inspection of the fuses. Furthermore, because the unit accommodates specialized MRBF fuses (sold separately), it supports ignition-protected installations when paired with the appropriate fuses, reducing hazards in marine engine rooms or enclosed battery boxes.
Streamlined Installation and Corrosion Resistance
Designed to simplify complex DC distribution layouts, the block features versatile breakouts that allow all positive and negative cables to exit from a single side. This single-side wire routing capability helps technicians and DIY builders achieve clean, professional cable management without awkward bends or excessive cable strain. To ensure long-term electrical integrity in harsh coastal and off-road environments, the terminal studs are equipped with one-piece stainless steel flange nuts. This hardware resists corrosion and prevents the thread galling often experienced with inferior fasteners, ensuring safe and secure wire terminations over the life of the system.
Key Features and Benefits
- Three Independent MRBF Positions: Consolidates high-amperage circuit protection into one compact assembly, saving valuable mounting space.
- Integrated Common Negative Stud: Purpose-built for three-output battery chargers or multi-circuit DC accessories requiring a shared ground return.
- ABYC/USCG Compliant Cover: Clear clip-on insulating cover shields live terminals from accidental contact while permitting easy visual fuse inspection.
- Single-Side Wire Routing: Clever housing design allows all cables to exit from one side for neat, orderly wiring looms.
- Marine-Grade Hardware: One-piece stainless steel flange nuts ensure secure, corrosion-resistant connections in high-vibration and damp environments.
- Circuit Identification Recesses: Built-in label recesses accommodate Blue Sea Systems Square Format labels for clear system documentation and troubleshooting.
- Important Note: MRBF fuses are sold separately, allowing you to select the exact amperage ratings required for each individual circuit.
Ideal Applications
Whether you are fitting out a commercial marine vessel, upgrading an off-grid caravan electrical system, or wiring a dual-battery 4WD setup, this 3-circuit MRBF block delivers reliable, space-saving distribution. It is particularly effective for connecting multi-bank AC-to-DC battery chargers, distributing power to high-draw marine electronics, or organising primary battery feeds where space and safety are paramount.
Upgrade Your DC Power Distribution
Streamline your battery charger wiring and protect your critical electrical infrastructure with the Blue Sea 3-Circuit MRBF Fuse Block. Remember to select your required MRBF fuses separately to complete your installation.
SKU: BS-5196B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | MRBF fuse block |
| Configuration | Common negative |
| Number of circuits | 3 |
| MRBF fuse positions | 3 |
| Function | Consolidated high-amperage circuit protection |
| Cover included | Yes; clip-on insulating cover |
| Charger compatibility | 3-output battery chargers |
| Wiring | Options allow all wires to come out one side |
| Label compatibility | Blue Sea Systems Square Format labels |
| Flange nuts | One-piece stainless steel |
| Fuses | Sold separately |
| SKU: | BS-5196B |
| Model #: | BS-5196B |
| MPN: | BS-5196B |
| Package weight: | 0.42 kg |
| Package length: | 0.18 m |
| Package width: | 0.11 m |
| Package height: | 0.08 m |
WARRANTY
Blue Sea Warranty Policy
Blue Sea Systems products sold by us are supplied with a warranty against defects for the warranty period shown below, subject to the product type, application and the terms of this warranty policy.
The express warranty provided by us is limited to a maximum of 5 years from the original date of purchase, unless otherwise required under Australian Consumer Law.
Blue Sea Systems may offer longer manufacturer support on some products at their discretion
Warranty Lengths by Product Range
| Blue Sea Product Range | Warranty Length | Application / Notes |
|---|---|---|
| Most Blue Sea Systems Products | 5 years | Applies to most Blue Sea Systems products found to be defective in materials or manufacture. |
| P12 Battery Chargers | 5 years | Warranty period starts from the original date of purchase. |
| P12 Remote Displays | 5 years | Warranty period starts from the original date of purchase. |
| Digital Meters | 3 years | Warranty period starts from the original date of purchase. |
| Vessel System Monitors | 3 years | Warranty period starts from the original date of purchase. |
Warranty Assessment and Remedy
If a Blue Sea Systems product is found to be defective in materials or manufacture within the applicable warranty period, we will, at our discretion, arrange a repair, replacement, store credit or refund, depending on the nature of the fault and the requirements of Australian Consumer Law.
Products may need to be returned for assessment before a warranty claim can be approved. Where required, the product must be returned with dated proof of purchase and a clear description of the fault.
Labour costs for removing, replacing, reinstalling or diagnosing a product are not covered by this express warranty unless otherwise required under Australian Consumer Law.
Making a Warranty Claim
To make a warranty claim, please contact us with your dated proof of purchase, product details and a description of the fault.
The product may need to be returned for inspection before the claim can be assessed. If the product is confirmed to be faulty and covered by this warranty, we will advise the available remedy.
What This Warranty Does Not Cover
This warranty does not cover faults or damage caused by incorrect installation, incorrect application, misuse, abuse, neglect, unauthorised modification, accidental damage, normal wear and tear, environmental damage, or failure to use the product in accordance with the manufacturer's instructions.
- Incorrect installation or wiring
- Incorrect product selection or application
- Misuse, abuse or neglect
- Physical or accidental damage
- Water ingress or environmental damage outside the product's intended use
- Unauthorised modification or repair
- Normal wear and tear
- Labour costs for removal, replacement, reinstallation or diagnosis
- Freight, travel or call-out costs unless otherwise required by law
- Products not returned for assessment when reasonably required
Manufacturer Support
Blue Sea Systems may provide additional manufacturer support on some products beyond the warranty period listed above. Where available, we may assist customers in contacting the manufacturer, but any manufacturer support beyond the express warranty period is subject to the manufacturer's own terms and continued availability.
Australian Consumer Law
This warranty is in addition to other rights and remedies available at law. Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
DOCUMENTS
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