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Blue Sea 80A 187-Series Panel Mount Thermal Circuit Breaker
Blue Sea 80A 187-Series Panel Mount Thermal Circuit Breaker
Up to 48V DC | Ignition Protected & Weatherproof | 5/16" (M8) Studs
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$167.82
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DESCRIPTION
Heavy-Duty 80A DC Circuit Protection and Switching for Marine and Off-Grid Systems
The Blue Sea 187-Series 80A Panel Mount Thermal Circuit Breaker delivers reliable overcurrent protection and manual switching in a single, robust unit. Engineered for demanding 12V, 24V, and up to 48V DC electrical systems, this breaker is an essential component for safeguarding high-draw circuits in marine vessels, caravans, 4WDs, and off-grid solar installations. Unlike standard fuse holders that require spare parts after a fault, this resettable 80A thermal breaker allows you to quickly restore power once the underlying electrical issue is resolved, while also functioning as a convenient master disconnect switch for maintenance or storage.
Engineered for Harsh Marine and Automotive Environments
When working with high-amperage DC systems, inferior circuit protection can lead to high-resistance connections, voltage drop, and severe thermal hazards. The Blue Sea Systems 187-Series mitigates these risks through marine-grade engineering and robust materials. Featuring an ignition-protected housing, it is safe for installation in enclosed compartments and engine rooms aboard petrol-powered boats where volatile fumes may accumulate. Its weatherproof construction seals out moisture, salt spray, and dust, preventing internal corrosion that commonly causes lower-grade breakers to fail prematurely in Australian coastal and outback conditions.
Key Features and Benefits
- Integrated Switching and Protection: Combines an 80A thermal circuit breaker and a manual ON/OFF switch into a single device, simplifying panel layouts and reducing wiring complexity.
- Trip-Free Mechanism: Designed for uncompromising safety, the internal mechanism cannot be manually held in the ON position while a fault current is present, preventing severe cable damage and electrical fires.
- Heavy-Duty Terminal Studs: Equipped with robust 5/16 in (Approx. M8) terminal studs that support high-torque connections and provide ample clearance for heavy-gauge wire lugs.
- Weatherproof and Ignition Protected: Built to withstand harsh marine and off-grid environments, making it suitable for installation in damp locations and petrol engine bays.
- High-Visibility Reset Lever: The large yellow actuator clearly indicates trip status at a glance and is ergonomically shaped for easy manual operation, even with gloved hands.
- Clean Panel Integration: Features recessed mounting holes for a flush, professional finish on dashboards, switchboards, and custom power distribution panels, with support for vertical or horizontal orientation.
Versatile Applications and Installation Considerations
Rated for systems up to 48V DC maximum, this 80A panel mount breaker is ideal for protecting main DC feeder lines, auxiliary battery banks, windlasses, bow thrusters, and high-output charge controllers. The ample clearance around the 5/16 in (Approx. M8) studs ensures that thick battery cables and heavy-duty lugs can be terminated securely without crowding or straining the housing.
Important Application Note: Do not use this thermal circuit breaker as a frequent manual switch for loads where high inrush currents are expected (such as large inverters without pre-charge circuits), as repeated high-inrush switching can degrade the internal contacts over time. It is specifically designed for continuous circuit protection and occasional isolation switching.
Upgrade Your Electrical Safety Today
Protect your high-current DC investments with proven marine-grade hardware. Add the Blue Sea 187-Series 80A Panel Mount Thermal Circuit Breaker to your setup for dependable, resettable circuit protection on the water or off the beaten track.
SKU: BS-7042B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Thermal circuit breaker |
| Mounting / form factor | Panel mount |
| Ignition Protected | Yes |
| Terminal Size | 5/16 in (M8) |
| SKU: | BS-7042B |
| Model #: | BS-7042B |
| MPN: | BS-7042B |
| Package weight: | 0.336 kg |
| Package length: | 0.1 m |
| Package width: | 0.06 m |
| Package height: | 0.09 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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