Blue Sea 80A 285-Series Surface Mount Thermal Circuit Breaker
Blue Sea 80A 285-Series Surface Mount Thermal Circuit Breaker
SAE J1171 Ignition Protected, Weather-Resistant & M6 Stainless Studs

DESCRIPTION
Heavy-Duty 80A DC Circuit Protection and Switching for Harsh Environments
The Blue Sea 285-Series 80A Surface Mount Thermal Circuit Breaker is a robust dual-purpose device engineered to provide dependable overcurrent protection and manual circuit switching in one compact unit. Designed specifically for demanding marine, RV, caravan, and off-grid DC electrical systems, this 80A circuit breaker eliminates the inconvenience of carrying and replacing blown fuses while safeguarding your high-draw wiring and appliances against thermal overload and short circuits.
Whether you are wiring a dual-battery system in a 4WD, protecting an inverter circuit in a camper trailer, or upgrading a marine distribution panel, the 285-Series delivers consistent, professional-grade performance across 12V, 24V, and up to 48V DC applications.
Engineered for Marine Safety and Weather Resistance
Electrical components installed in boats, caravans, and commercial vehicles are routinely exposed to moisture, vibration, and corrosive elements. This marine circuit breaker features a weather-resistant construction that protects internal mechanisms against water and dust ingress, ensuring reliable operation in exposed mounting locations such as battery boxes, engine bays, and exterior lockers.
Crucially for marine applications, the unit is fully ignition protected and complies with SAE J1171 external ignition protection requirements. This makes it completely safe for installation aboard petrol-powered vessels and in compartments where flammable fumes or gases may be present, actively reducing the risk of accidental spark ignition compared to standard automotive protection devices.
Intuitive Operation and Trip-Free Security
Troubleshooting electrical faults in poorly lit spaces is simplified thanks to the high-visibility yellow reset lever and red manual trip button. When an overcurrent event occurs, the yellow lever drops down to provide an immediate, unmistakable mechanical indication of the open circuit status. To isolate the circuit for maintenance or storage, simply press the red trip button to manually disconnect power.
For enhanced system safety, the internal mechanism utilises a trip-free design. This ensures that the circuit breaker cannot be manually held in the closed (on) position while a fault condition or overcurrent event persists, preventing catastrophic wire damage and thermal runaway.
- Dual-Function Design: Combines reliable 80A thermal overcurrent protection and manual on/off switching into a single compact unit.
- SAE J1171 Ignition Protected: Safe for installation in enclosed engine compartments and aboard petrol-powered marine vessels.
- Corrosion-Resistant Hardware: Equipped with heavy-duty M6 stainless steel terminal studs that ensure high conductivity and resist seizing in salt-air environments.
- Integrated Terminal Insulation: Flexible rubber protective caps sit over the terminal studs to insulate live connections against accidental short circuits.
- Trip-Free Mechanism: Prevents the circuit from being forced closed during an active fault condition, protecting downstream cabling and equipment.
- Simple Surface Mounting: Integrated mounting holes allow for straightforward, secure attachment to flat panels, bulkheads, or battery enclosures.
Application Guidelines and System Integration
The surface-mount form factor and protective terminal boots make this unit an ideal drop-in upgrade for older fuse blocks or unsealed breakers. The M6 terminal studs comfortably accommodate heavy-duty ring terminals, ensuring a low-resistance connection capable of handling continuous 80A loads.
Operational Note: While this unit functions effectively as a manual disconnect switch for standard loads, do not use the circuit breaker as a switch where high inrush currents are expected, as repeated high-inrush switching can degrade the internal contacts over time.
Upgrade Your DC Circuit Protection Today
Secure your boat, caravan, or off-grid power setup with industry-standard electrical protection. Order the Blue Sea 285-Series 80A Surface Mount Thermal Circuit Breaker today for safe, resettable, and compliant DC power management.
SKU: BS-7186B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Thermal circuit breaker |
| Mounting / form factor | Surface mount |
| Ignition protected | Yes |
| Standards / compliance | SAE J1171 |
| SKU: | BS-7186B |
| Model #: | 285 Series |
| MPN: | 285 Series |
| Package weight: | 0.24 kg |
| Package length: | 0.11 m |
| Package width: | 0.08 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.

