Description
Blue Sea 7157 Circuit Breaker 50A | Boat Supply Store
Protect critical DC circuits from overcurrent conditions with the Blue Sea 7157 Short Stop Circuit Breaker, engineered for demanding marine environments. This breaker offers a robust 50A DC rating and a 2500A @ 28V DC interrupt capacity, ensuring reliable safety for systems up to 28V DC. Its IP 64 water-resistant construction and corrosion-resistant materials make it ideal for protection on offshore fishing vessels operating in harsh saltwater conditions.
Key Features
- Reliable 50A DC Overcurrent Protection
- High Capacity 2,500A @ 28V DC Interrupt Rating
- Durable IP 64 Water-Resistant Boot
- Convenient Push-to-Reset Functionality
- Long-lasting Corrosion-Resistant Construction
- Versatile For DC Systems Up To 28V
- Secure #10-32 Screw Terminals
- Includes Red Insulating Boot for Added Safety
Specifications
| Product Specifications | |
|---|---|
| Amperage Rating | 50A DC |
| Maximum Voltage | 28V DC |
| Interrupt Capacity | 2500A @ 28V DC |
| Water Resistance | IP 64 |
| Reset Type | Push-to-Reset |
| Terminal Type | #10-32 Screw Terminals |
| Construction | Corrosion-Resistant |
Who This Is For
Marine enthusiasts and boat owners requiring dependable overcurrent protection for DC electrical systems up to 50A. Marine electricians will find this breaker suitable for installations demanding water and corrosion resistance.
How It Compares
| Feature | Blue Sea 7157 Circuit Breaker 50A | Competitor |
|---|---|---|
| Amperage | 50A DC | 60A DC, 50A |
| Maximum Voltage | 28V DC | 28V DC, 32V DC |
| Interrupt Capacity | 2500A @ 28V DC | 2500A @ 28V DC, 1000A @ 32V DC |
| Water Resistance | IP 64 | IP 64, Not specified |
| Reset Type | Push to Reset | Push to Reset, Fuse Replacement |
Common Concerns Answered
Are there any common installation challenges?
Some users report that the #10-32 terminal screw size may require specific crimp terminals for larger gauge wires, and careful attention to terminal torque is essential for a secure connection.
Can the reset button be accidentally triggered?
While the push-to-reset mechanism is convenient, it's important to ensure proper mounting to prevent accidental engagement in vibration-prone installations.
Is this breaker more expensive than alternatives?
While potentially pricier than simple fuse holders, the Blue Sea 7157's superior protection, durability, and resettable functionality offer a justifiable investment for critical marine electrical systems.
Frequently Asked Questions
What is the interrupt capacity of the Blue Sea 7157 Short Stop Circuit Breaker?
The Blue Sea 7157 has an interrupt capacity of 2500A at 28V DC, meaning it can safely interrupt a fault current of this magnitude without damage.
Is this circuit breaker waterproof?
This circuit breaker is water-resistant with an IP 64 rating, meaning it is protected against splashing water and dust ingress, suitable for many marine applications.
What is the maximum voltage rating for this breaker?
The maximum voltage rating for the Blue Sea 7157 is 28V DC.
Can this circuit breaker be manually reset?
Yes, this circuit breaker features a convenient push-to-reset mechanism, allowing you to restore power after a trip.
What type of terminals does this breaker use?
The Blue Sea 7157 utilizes #10-32 screw terminals for electrical connections.
