Description
Blue Sea 7048 Thermal Circuit Breaker 150A | Boat Supply Store
Secure your vessel's critical electrical circuits with a breaker engineered for harsh marine environments. This 150 Amp Type III thermal circuit breaker integrates switching and protection, featuring a manual reset and SAE J1171 ignition protection crucial for gasoline-powered craft. It operates across 12V, 24V, or 42V DC systems and boasts a robust 5/16" terminal capacity with interrupt ratings up to 5,000A at 12V DC.
Key Features
- Integrated Switching eliminates the need for a separate switch
- Ignition Protected meets SAE J1171 standards for safe use on gasoline vessels
- Manual Reset allows for quick restoration of power after a trip
- Trip Free Design prevents the breaker from being held closed against an overload
- Waterproof Construction ensures reliable operation in wet conditions
- Simplified Installation via self-trimming case and round profile
- Clear Trip Indication through a large, easily visible lever
- Robust Terminals accommodate substantial wiring with 5/16" studs
Specifications
| Product Specifications | |
|---|---|
| Amp Rating | 150 Amp |
| Max Voltage Rating | 48 Volts DC |
| Type | III (Switchable/Manual Reset/Trip Free) |
| Ignition Protection | SAE J1171 |
| Waterproof | Yes |
| Terminals | 5/16" |
| Interrupt Rating @ 12V DC | 5,000 Amperes |
| Interrupt Rating @ 24V DC | 3,000 Amperes |
| Interrupt Rating @ 42V DC | 1,500 Amperes |
| Operating Temperature Range | -25°C to +82°C |
Who This Is For
Marine enthusiasts and professional technicians requiring robust, integrated circuit protection and switching for 12V, 24V, or 42V DC systems. This breaker is particularly suited for gasoline-powered vessels where adherence to SAE J1171 ignition protection standards is mandatory.
How It Compares
| Feature | Blue Sea 7048 Thermal Circuit Breaker 150A | Blue Sea Systems 7047 187 |
|---|---|---|
| Amp Rating | 150 Amp | 100 Amp, 150 Amp |
| Max Voltage Rating | 48 Volts DC | 48 Volts DC, 12-24 Volts DC |
| Interrupt Rating @ 12V DC | 5,000 Amperes | 5,000 Amperes, 2,500 Amperes |
| Ignition Protected | Yes (SAE J1171) | Yes (SAE J1171), Yes |
| Waterproof | Yes | Yes, null |
Common Concerns Answered
The price is higher than non-marine grade circuit breakers. Is it worth the investment?
Yes, this Blue Sea Systems breaker is specifically engineered and certified for marine use, featuring SAE J1171 ignition protection and waterproof construction that non-marine grade alternatives lack, ensuring enhanced safety and longevity on board.
I'm having trouble finding specific amperage ratings. Is this a common issue?
While sourcing highly specialized amperage ratings can occasionally present challenges due to demand, the Blue Sea 7048 is a widely stocked and critical component for many marine electrical systems, ensuring essential protection for high-draw applications.
Is this breaker overly complex for basic applications?
The Blue Sea 7048 offers a unique combination of switching and circuit protection, simplifying panel installations by reducing component count, making it efficient even for systems that might otherwise require separate components.
Frequently Asked Questions
What is the voltage rating of the Blue Sea 7048 circuit breaker?
The Blue Sea 7048 circuit breaker has a maximum voltage rating of 48 Volts DC.
What is the interrupt rating of the Blue Sea 7048 circuit breaker?
The interrupt ratings are 5,000A @ 12V DC, 3,000A @ 24V DC, and 1,500A @ 42V DC.
Is the Blue Sea 7048 circuit breaker ignition protected?
Yes, the Blue Sea 7048 circuit breaker is ignition protected and compliant with SAE J1171 standards.
What type of circuit breaker is the Blue Sea 7048?
The Blue Sea 7048 is a Type III thermal circuit breaker with switchable, manual reset, and trip-free capabilities.
Can the Blue Sea 7048 be used on gasoline-powered boats?
Yes, the Blue Sea 7048 circuit breaker is SAE J1171 ignition protected, making it safe and suitable for use on gasoline-powered boats.
