Blue Sea 30A C-Series Single-Pole Flat Rocker Circuit Breaker
Blue Sea 30A C-Series Single-Pole Flat Rocker Circuit Breaker
Magnetic-Hydraulic Overcurrent Protection with Trip-Free Flush Rocker

DESCRIPTION
Integrated Overcurrent Protection and Manual Switching for Marine and Off-Grid Systems
Precision Magnetic-Hydraulic Technology for High-Demand Loads
The Blue Sea C-Series 30A Single-Pole Flat Rocker Circuit Breaker offers a dual-function solution by combining manual circuit switching and reliable overcurrent protection into one compact housing. Engineered for demanding marine, caravan, and off-grid electrical environments, this unit streamlines distribution panel layouts by eliminating the need for separate inline fuses and isolation switches. Whether managing primary main circuits or sub-circuits, the C-Series provides dependable operation when protecting critical electrical infrastructure.
Unlike standard thermal breakers that can suffer from nuisance tripping when ambient temperatures rise in enclosed engine bays or battery compartments, the C-Series utilises advanced magnetic-hydraulic technology. Because the trip mechanism responds solely to actual current draw rather than ambient heat, it maintains a consistent 30A trip threshold across extreme Australian climates. This ensures your system delivers full rated power without premature disconnects.
Ergonomic Flat Rocker Design and Enhanced Safety
Accidental switching is a common hazard in mobile and marine applications where movement and tight spaces are the norm. The C-Series addresses this risk with a specially contoured flat rocker actuator that sits completely flush with the mounting bezel when in the ON position. This low-profile finish prevents gear, clothing, or accidental bumps from deactivating vital circuits while underway or off-grid.
For immediate visual diagnostics, the actuator features clear international 'I' and 'O' markings alongside a bright colour indicator that becomes visible only in the OFF or tripped position. Furthermore, the internal mechanism is engineered for trip-free operation. If a hazardous short circuit or severe overload occurs, the internal contacts will disconnect and cannot be manually held closed, safeguarding wiring harnesses and connected appliances from thermal damage.
- Flush-Mount Flat Rocker: Sits level in the ON position to prevent accidental switching in high-traffic areas.
- Trip-Free Mechanism: Internal contacts cannot be forced to remain closed during an active fault condition, maximising system safety.
- Magnetic-Hydraulic Operation: Unaffected by ambient temperature fluctuations, preventing nuisance tripping in hot enclosures.
- Visual Status Indication: Contrasting colour actuator clearly reveals when the circuit is switched OFF or tripped.
- Robust Terminal Hardware: Features rear screw-down terminals for vibration-resistant wiring, with 5/16-inch (Approx. 8mm) stud options available across the series for paralleled bus configurations.
- Secure Panel Mounting: Integrated brass threaded inserts ensure straightforward, durable installation into switch panels.
Versatile Applications for 12V, 24V, and AC/DC Distribution
Built to handle high inrush currents and continuous loads, this 30A C-Series breaker is suited to a wide variety of heavy-duty electrical applications. It serves as an ideal main or branch circuit protector for:
- Marine electronics, bilge setups, and auxiliary sub-panels
- Caravan, camper trailer, and motorhome 12V and 24V distribution boards
- Small power inverters, battery chargers, and DC-DC charging circuits
- Moderate-draw mechanical loads such as winches, windlasses, and hydraulic pumps
Upgrade Your Circuit Protection
Ensure the safety and longevity of your mobile or marine electrical setup with professional-grade switching hardware. Integrate the Blue Sea C-Series 30A Flat Rocker Circuit Breaker into your power distribution panel today for dependable, temperature-stable overcurrent protection.
SKU: BS-7545B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Circuit breaker |
| Actuator type | Rocker |
| Switching function | On-off |
| SKU: | BS-7545B |
| Model #: | BS-7545B |
| MPN: | BS-7545B |
| HS code: | 8536200040 |
| Country of origin: | MX |
| Package weight: | 0.54 kg |
| Package length: | 0.14 m |
| Package width: | 0.12 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.

