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Blue Sea MIDI Fuse Block Safety Cover
Blue Sea MIDI Fuse Block Safety Cover
200A Ignition-Protected Sealed Enclosure for Up to 4/0 AWG (95mm2) Wire
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$58.69
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DESCRIPTION
Heavy-Duty Circuit Protection for Marine and Off-Grid Electrical Systems
Managing high-current distribution requires robust hardware capable of withstanding severe environmental conditions. The Blue Sea Systems BS-7720B MIDI / AMI Safety Fuse Block is engineered to provide dependable, compact circuit protection for main branch circuits, windlasses, inverter feeds, and high-output alternators. Supporting up to 200A when paired with heavy-duty 4/0 AWG (approx. 95mm2 to 107mm2) battery cable, this unit safeguards critical electrical infrastructure across marine vessels, 4WDs, caravans, and off-grid power setups.
Ignition Protection and Marine-Grade Compliance
In marine and mobile environments, exposed terminals and unsealed fuses pose significant safety hazards. Unprotected connections are vulnerable to accidental short circuits from dropped tools or shifting gear, as well as accelerated corrosion from salt spray and moisture ingress. The BS-7720B resolves these vulnerabilities through a comprehensive, sealed enclosure design.
Featuring a durable, transparent insulating cover, this fuse block satisfies strict ABYC and USCG insulation requirements. More importantly, it is fully ignition-protected, making it safe for installation aboard both petrol and diesel-powered boats. By containing potential electrical arcs within the sealed housing, it significantly reduces the risk of igniting flammable bilge vapours or surrounding gases.
Key Features and Installation Benefits
- Sealed Insulating Cover: Protects the internal MIDI or AMI fuse and conductive studs from harsh marine moisture, salt spray, and accidental contact while allowing instant visual inspection of the fuse state.
- Ignition Protected: Engineered for safe operation in engine rooms and enclosed compartments on petrol and diesel vessels.
- Multi-Directional Wire Access: Integrated cover breakouts can be selectively removed to allow heavy-gauge cable entry from multiple directions, simplifying complex wiring layouts in tight spaces.
- Corrosion-Resistant Hardware: Equipped with heavy-duty stainless steel terminal studs that ensure low-resistance connections and long-term durability when terminating large lugs.
- Clear Circuit Identification: Includes a dedicated recessed area on the cover that accepts Blue Sea Systems Square Format standard or custom labels for clean, professional system documentation.
- High-Current Capacity: Rated for up to 200A maximum continuous current when wired with appropriately sized 4/0 AWG (approx. 95mm2 to 107mm2) conductors.
Engineered for Flexible System Integration
Unlike basic open-style fuse holders that leave terminals exposed or restrict cable routing to a single axis, the Blue Sea Systems Safety Fuse Block is designed for practical installation in real-world electrical cabinets. The removable side breakouts accommodate thick insulation on heavy cables without compromising the protective barrier of the cover. Whether you are building a custom 12V, 24V, or 48V battery bank distribution board in a camper trailer or upgrading the main DC fusing on a commercial vessel, this unit provides a tidy, compliant, and resilient mounting point.
Please note: This listing includes the MIDI fuse block base and sealed safety cover. MIDI / AMI fuses are sold separately to allow selection of the exact amperage rating required for your specific circuit and cable size.
Upgrade Your Circuit Protection
Ensure your high-amperage DC wiring meets professional marine and automotive safety standards. Add the Blue Sea Systems MIDI Safety Fuse Block to your electrical build for reliable, compliant circuit protection.
SKU: BS-7720B
SPECIFICATIONS
| Specification | Details |
|---|---|
| Product type | MIDI fuse block safety cover |
| Ignition protection | Ignition protected for installation aboard gasoline or diesel powered boats |
| Cover | Sealed insulating cover |
| Wire access | Cover breakouts allow wire access in any direction |
| Maximum current | 200A maximum with 4/0 cable |
| Label compatibility | Accepts Blue Sea Systems Square Format standard or custom label |
| Standards / compliance | ABYC/USCG insulation requirements |
| Fuses | Sold separately |
| SKU: | BS-7720B |
| Model #: | BS-7720B |
| MPN: | BS-7720B |
| HS code: | 8536908585 |
| Country of origin: | MX |
| Package weight: | 0.3 kg |
| Package length: | 0.14 m |
| Package width: | 0.09 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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