Description
Blue Sea 7546 50A C-Series Rocker Breaker | Boat Supply Store
Protect critical DC and AC marine circuits from overcurrent conditions with the Blue Sea 7546 C-Series Flat Rocker Circuit Breaker. This single-pole, 50A unit features a "trip-free" magnetic hydraulic mechanism that prevents the breaker from being held closed after a fault, ensuring immediate disconnection. Rated for up to 240V AC or 48V DC with an impressive 5000A @ 32V DC interrupt capacity, it provides robust protection for high-draw equipment like inverters and windlasses common on offshore sportfishing vessels.
Key Features
- Eliminates Accidental Switching: Flush rocker actuator in the "ON" position prevents unintentional power interruptions.
- Clear Status Indication: Color-coded actuator visually confirms the "OFF" position.
- Essential Overcurrent Protection: Safeguards high-draw systems such as inverters, bow thrusters, and windlasses.
- Integrated Switching and Protection: Combines the function of a circuit breaker and a power switch into a single compact unit.
- Unfailingly Reliable Tripping: "Trip Free" mechanism guarantees the breaker will not remain closed during an overload or short circuit.
- Safe for Gasoline Engines: Ignition protected design ensures safe installation on vessels with gasoline-powered engines.
- Durable Construction: Built with the robust quality expected from Blue Sea Systems for marine environments.
- Simplified Marine Wiring: Reduces component count and complexity in electrical panel installations.
Specifications
| Product Specifications | |
|---|---|
| Pole | Single |
| Amperage Rating | 50A |
| Voltage Rating | 240V AC / 48V DC |
| Interrupt Capacity | 3000A @ 120V AC / 3500A @ 240V AC / 5000A @ 32V DC |
| Actuator Style | Flat Rocker |
| Mechanism | Magnetic Hydraulic, Trip-Free |
| Ignition Protected | Yes |
| Terminal Stud Size | 1/4-20 |
| Terminal Material | Tin-Plated Brass |
| Recommended Torque | 35 in-lb |
Who This Is For
This circuit breaker is engineered for marine enthusiasts and professional marine electricians who demand reliable overcurrent protection for high-demand DC and AC systems. It is ideal for applications requiring robust safety features and integrated switching, such as powering inverters, bow thrusters, and windlasses on various boat types.
How It Compares
| Feature | Blue Sea 7546 50A C-Series Rocker Breaker | Competitor |
|---|---|---|
| Amperage | 50A | 50A, 50A |
| Maximum Voltage | 240V AC / 48V DC | 240V AC / 48V DC, 28V DC |
| Actuator Style | Flat Rocker | Contura Rocker, Push Button Reset |
| Ignition Protected | Yes | Yes, Yes |
| Trip Free | Yes | Yes, Yes |
Common Concerns Answered
The price seems higher than some basic breakers. Is it worth the investment?
The Blue Sea 7546's price point reflects its advanced "trip-free" magnetic hydraulic mechanism, ignition-protected design, and flush rocker actuator, offering enhanced safety and reliability. These features justify the cost for critical marine electrical systems where dependable performance is paramount.
Are there any specific installation requirements I should be aware of?
Proper installation is crucial. Users should follow the specified 35 in-lb torque for the 1/4-20 terminal studs to ensure secure and reliable electrical connections. While occasional difficulty may arise in pinpointing exact torque values, adhering to manufacturer recommendations is key.
Can I hold the breaker closed if it trips during an overload?
No, this breaker features a "trip-free" mechanism. This critical safety feature prevents the breaker from being held closed after a trip, ensuring it remains open until the fault condition is resolved and the breaker is manually reset.
Frequently Asked Questions
What is the maximum voltage rating for the Blue Sea 7546 C-Series Flat Rocker Circuit Breaker?
The Blue Sea 7546 C-Series Flat Rocker Circuit Breaker is rated for a maximum of 240V AC and 48V DC.
Can this circuit breaker be used for both AC and DC applications?
Yes, this circuit breaker is designed for use in both AC (up to 240V) and DC (up to 48V) marine electrical systems.
What is the interrupt capacity of the Blue Sea 7546 circuit breaker?
The interrupt capacity is 3000A at 120V AC, 3500A at 240V AC, and 5000A at 32V DC.
Is the Blue Sea 7546 ignition protected?
Yes, the Blue Sea 7546 circuit breaker is ignition protected, making it safe for installation aboard gasoline-powered boats.
What type of actuator does the Blue Sea 7546 circuit breaker have?
The Blue Sea 7546 circuit breaker features a flat rocker actuator that sits flush in the "ON" position and has a color indicator for the "OFF" position.
