Blue Sea 80A C-Series Single-Pole Toggle Circuit Breaker
Blue Sea 80A C-Series Single-Pole Toggle Circuit Breaker
Magnetic Hydraulic Trip-Free Design - White Toggle & Brass Inserts

DESCRIPTION
Heavy-Duty Switching and Overcurrent Protection for Marine and Off-Grid Systems
The Blue Sea C-Series 80A Single-Pole Toggle Circuit Breaker (BS-7248B) delivers reliable circuit protection and manual switching in a single, compact unit. Engineered specifically for demanding marine, RV, caravan, and industrial electrical setups, this device eliminates the need for separate switches and fuse holders. By consolidating two essential functions, it streamlines distribution panel layouts, reduces wiring complexity, and minimises potential points of failure in high-current applications.
Advanced Magnetic Hydraulic Design
Unlike standard thermal circuit breakers that rely on heat-sensitive bimetallic strips, the C-Series utilises a precision magnetic hydraulic mechanism. Standard thermal breakers can suffer from nuisance tripping when installed in hot engine bays, enclosed canopies, or sun-exposed electrical cabinets because ambient heat lowers their trip threshold. The magnetic hydraulic architecture of the BS-7248B senses only the actual electrical current flowing through the circuit. This ensures consistent, predictable overcurrent protection and stable 80A continuous performance regardless of ambient temperature fluctuations.
In addition to temperature stability, this breaker incorporates a trip-free design. This vital safety feature ensures that the internal contacts cannot be manually held closed during an active fault or short-circuit event. If an overcurrent condition exists, the breaker will trip internally even if the white toggle actuator is physically held in the ON position, protecting downstream equipment and cabling from thermal damage.
Key Features and Benefits
- Dual-Function Operation: Combines heavy-duty 80A overcurrent protection with manual ON/OFF circuit switching in one streamlined component.
- Magnetic Hydraulic Mechanism: Immune to ambient temperature variations, preventing nuisance tripping in hot enclosures or marine engine rooms.
- Trip-Free Safety Mechanism: Internal contacts cannot be held closed during a fault current event, safeguarding wiring and electronics.
- Marine-Grade Construction: Encased in a durable thermoplastic housing with integrated brass threaded mounting inserts for secure front-panel installation.
- Ergonomic White Toggle: Provides tactile manual control and immediate visual indication of circuit status on dark distribution panels.
- Heavy-Duty Rear Terminals: Robust screw terminals ensure secure, low-resistance attachment for high-amperage electrical lugs.
Engineered for Harsh Environments
Built to withstand the rigours of mobile and marine environments, the Blue Sea Systems C-Series features a rugged industrial thermoplastic enclosure that resists vibration, moisture, and corrosion. The front-panel mounting system utilises integrated brass threaded inserts, allowing for a flush, secure installation into custom switch panels or existing Blue Sea power distribution modules. At the rear, heavy-duty screw terminals provide a solid mechanical and electrical interface for heavy-gauge cabling, reducing voltage drop and heat build-up under high-amperage loads.
Ideal Applications
With its 80A current rating, the BS-7248B is well suited for protecting high-draw sub-panels, windlasses, bow thrusters, inverters, DC-DC chargers, and heavy-duty winch control circuits. Whether you are fitting out a commercial marine vessel, upgrading a 4WD dual-battery canopy, or designing a custom off-grid power board for a caravan, this single-pole breaker offers professional-grade circuit management.
Upgrade Your Electrical Distribution
Ensure your high-amperage circuits are protected against overloads and short circuits without the risk of heat-induced nuisance trips. Specify the Blue Sea C-Series 80A Toggle Circuit Breaker for your next marine, RV, or off-grid electrical installation.
SKU: BS-7248B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Circuit breaker |
| SKU: | BS-7248B |
| Model #: | BS-7248B |
| MPN: | BS-7248B |
| Package weight: | 0.66 kg |
| Package length: | 0.15 m |
| Package width: | 0.1 m |
| Package height: | 0.1 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.

