Description
Blue Sea 7040 60A Thermal Circuit Breaker | Boat Supply Store
Essential for safeguarding 12V, 24V, or 42V DC systems on gasoline-powered vessels, this device integrates a 60-amp thermal circuit breaker with a manual reset switch into a single, ignition-protected unit. It features a thermally responsive bi-metal blade design and complies with SAE J1171 external ignition protection standards. With a robust 5/16" terminal design and a trip-free mechanism, it simplifies electrical panel installations while providing critical safety on board, preventing accidental overcurrent situations from damaging sensitive equipment, even in high-vibration environments.
Key Features
- Integrated switching and circuit protection in one unit
- Ignition Protected meeting SAE J1171 external ignition protection standards for gasoline engines
- Trip-Free Design prevents manual closing against an overload
- Waterproof construction for harsh marine environments
- Manual Reset allows for quick restoration of power after a trip
- Clear Lever Operation provides easy status indication (on/off/tripped)
- Robust 5/16" Terminals ensure secure electrical connections
- Space-Saving Design consolidates two components into one
Specifications
| Product Specifications | |
|---|---|
| Amp Rating | 60 Amp |
| Maximum Voltage Rating | 48 Volts DC |
| Type | Type III (Switchable/Manual Reset/Trip Free) |
| Ignition Protection | SAE J1171 |
| Terminal Design | 5/16" |
| Operation | Thermally Responsive Bi-Metal Blade |
| Interrupt Rating (Example @ 12V DC) | 5,000 Amperes |
Who This Is For
Marine enthusiasts and boat owners requiring reliable, integrated switching and circuit protection for 12V, 24V, or 42V DC systems. This is particularly critical for gasoline-powered vessels where SAE J1171 ignition protection is a mandatory safety requirement.
How It Compares
| Feature | Blue Sea 7040 60A Thermal Circuit Breaker | Blue Sea Systems 7041 187 |
|---|---|---|
| Amp Rating | 60 Amp | 70 Amp, 60 Amp |
| Maximum Voltage Rating | 48 Volts DC | 48 Volts DC, 28 Volts DC |
| Ignition Protected | Yes (SAE J1171) | Yes (SAE J1171), Yes |
| Type | Type III - Switchable / Manual Reset - Trip Free | Type III - Switchable / Manual Reset - Trip Free, Type III - Switchable / Manual Reset - Trip Free |
| Interrupt Rating (Example @ 12V DC) | 5,000 Amperes | 5,000 Amperes, 5,000 Amperes |
Common Concerns Answered
Is the price higher than basic breakers?
While the initial cost may exceed that of a separate switch and basic breaker, the Blue Sea 7040's integrated functionality, ignition protection, and waterproof design provide significant value and simplify installation, justifying the investment for enhanced safety and reliability.
Are specific amperage ratings difficult to find?
Sourcing specific amperage ratings can occasionally present challenges, but Boat Supply Store maintains stock of popular and critical ratings like the 60-amp unit in the Blue Sea 7040, ensuring availability for essential marine electrical systems.
Can this breaker handle high electrical loads?
The 60-amp rating and 5,000 Ampere interrupt rating at 12V DC are substantial, designed to safely manage loads for many marine accessories and systems. Always consult your vessel's wiring diagram to ensure proper application and wire gauge selection.
Frequently Asked Questions
What is the voltage rating of the Blue Sea 7040 circuit breaker?
The Blue Sea 7040 187-Series Thermal Circuit Breaker has a maximum voltage rating of 48 Volts DC.
What is the interrupt rating of the Blue Sea 7040 circuit breaker?
The interrupt rating for the Blue Sea 7040 circuit breaker is 5,000 Amperes, using 12V DC as an example operating condition.
Is the Blue Sea 7040 circuit breaker ignition protected?
Yes, the Blue Sea 7040 is ignition protected and compliant with SAE J1171 external ignition protection standards, making it safe for use on gasoline-powered vessels.
What type of circuit breaker is the Blue Sea 7040?
The Blue Sea 7040 is a Type III circuit breaker, characterized by its switchable functionality, manual reset capability, and trip-free design.
Can the Blue Sea 7040 be used on gasoline-powered boats?
Absolutely. The Blue Sea 7040 is specifically designed and certified with SAE J1171 external ignition protection, making it ideal and safe for use on gasoline-powered boats where ignition hazards must be mitigated.
