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Blue Sea 20A C-Series Single-Pole Flat Rocker Circuit Breaker
Blue Sea 20A C-Series Single-Pole Flat Rocker Circuit Breaker
Flush-On Actuator, Trip-Free Protection & 5/16" (M8) Stud Terminals
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$71.05
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DESCRIPTION
Integrated Switching and Overcurrent Protection for Demanding Electrical Systems
The Blue Sea C-Series 20A Single-Pole Flat Rocker Circuit Breaker is engineered to deliver both reliable overcurrent protection and convenient manual on-off switching within a single, compact housing. In demanding marine, RV, and off-grid electrical installations, panel space is often limited. By combining a heavy-duty switch with a magnetic-hydraulic circuit breaker, this unit eliminates the need for separate switching components and fuse blocks, streamlining your wiring layout and reducing potential failure points across your distribution system.
Engineered for Safety: Trip-Free and Flush-Mount Design
Unlike standard commercial switches that can be accidentally knocked into the off or on position in rough seas or corrugated off-road tracks, the C-Series flat rocker features a recessed actuator that sits completely flush when in the ON position. This ergonomic profile prevents unintended actuation caused by movement inside a cabin or tight electrical locker. Additionally, a high-visibility coloured actuator clearly exposes the OFF status, giving operators immediate visual confirmation of circuit isolation during maintenance or emergency troubleshooting.
Safety is further reinforced through a mechanical trip-free mechanism. If an overcurrent fault or short circuit occurs on the line, the internal mechanism will trip immediately and cannot be manually held closed to bypass the fault. This critical safety feature reduces the risk of wire insulation melting, equipment damage, or electrical fires, outperforming standard thermal breakers that may suffer from ambient temperature derating in hot engine bays or enclosed battery compartments.
Key Features and Technical Advantages
- Dual-Function Operation: Combines heavy-duty manual on-off switching and precision overcurrent protection in one panel-mount device.
- Flush-On Flat Rocker: Actuator sits flush in the ON position to prevent accidental switching in high-vibration or cramped environments.
- High-Visibility Status Indicator: Coloured actuator portion reveals clearly when the breaker is in the OFF or tripped position.
- Trip-Free Safety Mechanism: Internal contacts cannot be forced or held closed during an active overcurrent fault condition.
- Robust Terminal Architecture: Rear 5/16" (Approx. M8 or 7.9mm) stud terminals accommodate larger ring terminals and heavy-gauge cabling for minimal voltage drop.
- Secure Front-Panel Mounting: Integrated standard threaded inserts allow for clean, reliable installation into custom switch panels and dashboards.
Versatile Applications Across Marine and Off-Grid Power
While the C-Series family is widely recognised for protecting heavy marine loads such as bow thrusters, windlasses, and high-output inverters, this 20A single-pole configuration is ideally suited for dedicated branch circuits, control lines, and medium-draw appliances. Its robust 5/16" (Approx. M8) rear stud terminals provide substantial contact surface area, allowing installers to terminate larger cable lugs securely without the mechanical stress often seen on small screw terminals.
Whether you are fitting out a coastal cruiser, building a 12V or 24V auxiliary power distribution board in a touring 4WD, or upgrading an off-grid solar control cabinet, the Blue Sea Systems C-Series provides dependable circuit management. Upgrade your electrical panel with the Blue Sea C-Series 20A Flat Rocker Circuit Breaker today for professional-grade circuit protection and clean panel integration.
SKU: BS-7543B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Circuit breaker |
| Switching function | On-off |
| Pole configuration | Paralleled poles |
| Terminal size | 5/16" stud |
| SKU: | BS-7543B |
| Model #: | BS-7543B |
| MPN: | BS-7543B |
| Package weight: | 0.42 kg |
| Package length: | 0.12 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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