Description
Blue Sea 7549 100A Circuit Breaker | Boat Supply Store
Protect high-amperage DC and AC marine circuits with the Blue Sea 7549 C-Series Flat Rocker Circuit Breaker, engineered for reliability and safety on vessels up to 240V AC or 48V DC. Its magnetic hydraulic 'trip free' mechanism ensures continuous overcurrent protection, preventing manual override after a fault, crucial for safeguarding inverters or windlasses. This ignition-protected unit is rated for 10,000 switching cycles, providing durable circuit control for gasoline-powered craft operating in demanding marine environments.
Key Features
- Integrates switching and circuit protection into a single unit
- Trip-free mechanism ensures overcurrent protection cannot be overridden
- Ignition protected for safe installation on gasoline-powered vessels
- Flush rocker actuator provides a clean, low-profile installation
- 100A AC/DC rating handles significant electrical loads common in marine systems
- 240V AC / 48V DC maximum voltage supports diverse vessel electrical configurations
- High interrupt capacity (up to 5000A) safely manages fault currents
- UL Recognized and ABYC compliant for assured marine-grade quality
Specifications
| Product Specifications | |
|---|---|
| Poles | Single Pole |
| Amperage Rating | 100A AC/DC |
| Maximum Voltage | 240V AC / 48V DC |
| Actuator Style | Flat Rocker |
| Trip Mechanism | Magnetic Hydraulic - trip free |
| Interrupt Capacity | 3000A @ 120V AC / 3500A @ 240V AC / 5000A @ 32V DC |
| Ignition Protected | Yes |
| Switching Cycles | 10,000 |
| Terminal Stud Size | Specify if known, otherwise omit or use generic if unavoidable. (Assume standard for this context is sufficient.) |
Who This Is For
Marine enthusiasts and boat owners requiring robust overcurrent protection and switching for high-draw DC and AC marine systems, such as those powering inverters, bow thrusters, or windlasses. Ideal for installation on gasoline-powered vessels where ignition protection is a critical safety requirement.
How It Compares
| Feature | Blue Sea 7549 100A Circuit Breaker | Blue Sea Systems 7421 M |
|---|---|---|
| Amperage | 100A AC / 100A DC | 100A |
| Poles | 1 | 1 |
| Maximum Voltage | 240V AC / 48V DC | 240V AC / 48V DC |
| Actuator Style | Flat Rocker | Contura Rocker |
| Circuit Breaker Type | Magnetic Hydraulic - trip free | Magnetic Hydraulic - trip free |
| Ignition Protected | Yes | Yes |
Common Concerns Answered
Terminal stud torque sensitivity
Properly torque terminal studs to the manufacturer's specifications to ensure a secure connection without damaging the breaker. Utilizing a calibrated torque wrench is recommended for precise installation.
Actuator feel in rough conditions
While the flat rocker design provides a flush profile, the tactile feedback can be less pronounced than other styles. Ensure the breaker is accessible and clearly labeled for operation during active sea states.
Price for budget-conscious buyers
The Blue Sea 7549 offers integrated switching and superior ignition protection, justifying its value for critical systems. Consider the long-term reliability and safety benefits for high-draw applications.
Frequently Asked Questions
What is the maximum voltage rating for the Blue Sea 7549 circuit breaker?
The Blue Sea 7549 C-Series Flat Rocker Circuit Breaker has a maximum voltage rating of 240V AC and 48V DC.
Can this circuit breaker be used for both AC and DC applications?
Yes, this circuit breaker is rated for both AC (up to 240V) and DC (up to 48V) applications, providing versatility for marine electrical systems.
What is the interrupt capacity of the Blue Sea 7549 circuit breaker?
The interrupt capacity is 3000A at 120V AC, 3500A at 240V AC, and 5000A at 32V DC.
Is the Blue Sea 7549 circuit breaker ignition protected?
Yes, the Blue Sea 7549 circuit breaker is ignition protected, making it safe for installation on gasoline-powered vessels.
What type of actuator does the Blue Sea 7549 circuit breaker have?
The Blue Sea 7549 circuit breaker features a flat rocker actuator, which sits flush in the 'ON' position, and the color actuator indicates the 'OFF' position.
