Blue Sea 50A C-Series AC Double-Pole Raised Rocker Circuit Breaker
Blue Sea 50A C-Series AC Double-Pole Raised Rocker Circuit Breaker
Isolates Live & Neutral Lines - Heavy-Duty Rear Stud Terminals

DESCRIPTION
Heavy-Duty 50A AC Main Circuit Protection and Switching
Managing high-current alternating current (AC) power in mobile, marine, and off-grid electrical systems requires components engineered for uncompromising safety and reliability. The Blue Sea C-Series 50A AC Double-Pole Raised Rocker Circuit Breaker provides consolidated switching and overcurrent protection in a single, robust unit. Designed specifically for demanding AC electrical panels, this breaker eliminates the need for separate switch and fuse combinations, streamlining your enclosure layout while enhancing system safety.
In marine and recreational vehicle applications, AC shore power and inverter outputs present distinct electrical hazards, such as reverse polarity and ground faults. The double-pole configuration of this C-Series circuit breaker addresses these risks by isolating both the active (live) and neutral conductors simultaneously. When an overload occurs on either line, both poles trip together, ensuring the circuit is completely de-energised before any maintenance or inspection takes place.
Engineered for High-Current Reliability
Standard residential or unbranded breakers often fail prematurely when subjected to the constant vibration, moisture, and thermal cycling found in marine vessels and off-road caravans. This 50A AC circuit breaker is built to withstand harsh operational environments, featuring heavy-duty rear connection terminals and corrosion-resistant hardware.
- Simultaneous Double-Pole Switching: Breaks both active and neutral AC lines at once, making it ideal for 230V/240V AC main circuit protection, shore power inlets, and high-output inverter disconnect panels.
- Trip-Free Mechanism: Internal engineering ensures the breaker cannot be manually held in the ON position during an active fault or overcurrent condition, protecting wiring and appliances from thermal damage.
- High-Visibility Raised Rocker: The ergonomic raised rocker actuator provides positive tactile control and exposes a bright white indicator background when in the OFF or tripped position for instant visual status confirmation.
- Heavy-Duty Rear Stud Terminals: Equipped with robust threaded studs and nuts at the rear to secure large-gauge ring terminals, minimising contact resistance and preventing heat build-up under continuous 50A loads.
- Integrated Brass Mounting Inserts: Precision-machined brass threaded inserts in the housing allow for secure, vibration-resistant installation into custom distribution panels without stripping.
Why Choose the C-Series Raised Rocker Design?
When designing or upgrading a distribution board, clarity and ease of operation are paramount. The raised rocker actuator on the BS-7581B is specifically shaped for straightforward manual switching, even in dimly lit lockers or vibrating engine rooms. The 50A current rating is clearly printed directly onto the switch face, preventing confusion during system diagnostics or emergency shutdowns.
Compared to inferior alternatives that rely on push-on spade terminals, the heavy-duty stud terminals on the rear of the Blue Sea C-Series ensure that heavy AC cables remain tightly fastened over years of movement and thermal expansion. This reduces the risk of loose connections, voltage drop, and localized overheating behind your switchboard.
Ideal Applications for 50A Double-Pole Breakers
With its high amperage capacity and dual-pole isolation, this breaker is suited to primary AC distribution roles across various industries:
- Marine Shore Power Systems: Serves as a reliable main inlet breaker on larger vessels, isolating shipboard AC circuits from marina power when required.
- Off-Grid and RV Inverter Systems: Acts as a dependable AC output disconnect and overcurrent protector for high-capacity inverter/chargers in caravans, motorhomes, and tiny homes.
- Generator Transfer Panels: Safely manages high-current outputs from onboard marine or industrial generators.
- Custom Industrial Enclosures: Provides compact, panel-mounted AC protection for mobile workshops, service vehicles, and remote power skids.
Upgrade Your AC Distribution Panel
Ensure your high-current AC electrical system is protected against overloads with hardware designed for mobile and marine longevity. Integrate the Blue Sea C-Series 50A Double-Pole Circuit Breaker into your power distribution setup for dependable, compliant switching and circuit protection.
SKU: BS-7581B
SPECIFICATIONS
| Specification | Value |
|---|---|
| Product type | Circuit breaker |
| Application | AC |
| Rocker | Raised rocker |
| SKU: | BS-7581B |
| Model #: | BS-7581B |
| MPN: | BS-7581B |
| HS code: | 8536200040 |
| Country of origin: | MX |
| Package weight: | 0.42 kg |
| Package length: | 0.11 m |
| Package width: | 0.08 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.

