Description
Blue Sea 7476 200A Flat Circuit Breaker | Boat Supply Store
Protecting high-demand DC circuits on vessels operating up to 80 Volts, this breaker offers uncompromising safety and operational continuity. Its robust 200 Amp capacity is managed by a magnetic hydraulic mechanism that ensures a 'Trip Free' operation, preventing intentional or accidental circuit closure while overloaded. The flat actuator design with a distinct color indicator for the OFF position mitigates unintended switching, crucial for systems powering offshore trolling motors or essential navigation electronics.
Key Features
- Reliable C-Series Flat Circuit Breaker for demanding marine DC systems.
- High-Capacity 200 Amp rating handles significant electrical loads.
- Enhanced Safety 'Trip Free' design prevents re-engagement under fault conditions.
- Accident Prevention Flat actuator with color indicator shields against unintentional OFF switching.
- Durable Magnetic Hydraulic trip mechanism ensures precise fault interruption.
- Versatile Suitable for single and double pole configurations.
- Extended Lifespan Rated for 10,000 switch cycles at full amperage and voltage.
- High Voltage Tolerance Maximum operating voltage of 80 Volts DC.
Specifications
| Product Specifications |
|---|
Who This Is For
Marine electricians and system designers requiring robust DC electrical protection for high-amperage circuits up to 200 Amps on vessels operating up to 80 Volts. Boat owners seeking dependable circuit protection for critical systems on offshore fishing vessels or larger cruising yachts.
How It Compares
| Feature | Blue Sea 7476 200A Flat Circuit Breaker | Blue Sea Systems 7475 C |
|---|---|---|
| Amperage Rating | 200 Amp | 150 Amp, 200 Amp |
| Maximum Voltage | 80V DC | 80V DC, 28V DC |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Magnetic Hydraulic - Trip Free, Thermal |
| Rated Switch Cycles | 10,000 | 10,000, null |
| Actuator Design | Flat actuator with color indicator | Flat actuator with color indicator, Rocker style actuator |
Common Concerns Answered
Why is the price higher than basic thermal breakers?
The Blue Sea 7476 features a sophisticated Magnetic Hydraulic 'Trip Free' mechanism, offering superior reliability and precise overcurrent protection compared to simpler thermal breakers. This advanced design ensures protection against nuisance tripping and prevents circuit closure under fault conditions, a critical safety feature for high-amperage marine applications.
Is the magnetic hydraulic trip mechanism truly necessary over a thermal one?
For applications demanding rapid response and protection against both sustained overloads and short circuits, the magnetic hydraulic trip mechanism is superior. It provides instantaneous interruption for high-current faults, which a thermal breaker might delay, ensuring your critical DC circuits remain operational and safe, especially on larger vessels with substantial electrical demands.
Are specific amperage ratings difficult to find?
While occasional sourcing challenges for highly specific amperage ratings can occur, the Blue Sea 7476 in a 200 Amp rating is a standard, high-demand configuration designed for extensive use in demanding marine environments. Availability is generally good for these core specifications.
Frequently Asked Questions
What is the maximum voltage rating for the Blue Sea 7476 C-Series Flat Circuit Breaker?
The Blue Sea 7476 C-Series Flat Circuit Breaker has a maximum voltage rating of 80 Volts DC.
What does 'Trip Free' design mean for this circuit breaker?
'Trip Free' means the circuit breaker cannot be held in the ON position if an overcurrent fault condition exists, preventing damage to the circuit and connected equipment.
How does the color actuator indicate the OFF position?
The flat actuator on the Blue Sea 7476 is designed with a distinct color change or visual cue when moved to the OFF position, providing an immediate and clear indication of the breaker's status.
Is this circuit breaker suitable for AC or DC systems?
This circuit breaker, specifically the Blue Sea 7476, is designed and rated for DC systems only, with a maximum voltage of 80 Volts DC.
What is the rated switch cycle life of this breaker?
The Blue Sea 7476 C-Series Flat Circuit Breaker is rated for 10,000 switch cycles at its rated amperage and voltage.
