Description
Blue Sea 7399 2.5A Circuit Breaker | Boat Supply Store
Engineered for critical marine applications, this single-pole circuit breaker provides essential overcurrent protection for electrical circuits up to 2.5A. Its magnetic hydraulic mechanism ensures reliable tripping at 2.5A, while the 'trip free' design guarantees uninterrupted protection even if manually held against a fault. Rated for 250V AC and 32V DC, it is an indispensable component for maintaining the integrity of vessel electrical systems, whether navigating coastal waters or offshore.
Key Features
- Reliable 2.5A single-pole circuit protection
- Safe 'trip free' design prevents override during faults
- Flush 'ON' position rocker reduces accidental switching
- Versatile suitable for 250V AC / 32V DC systems
- Durable construction for harsh marine environments
- Clear actuator color indicates OFF state
- Standardized International ON/OFF symbols
- Certified for marine use (UL 1500, SAE J1171)
Specifications
| Product Specifications | |
|---|---|
| Type | Single Pole Magnetic Hydraulic Circuit Breaker |
| Amperage Rating | 2.5A |
| Max AC Voltage | 250V AC |
| Max DC Voltage | 32V DC |
| Interrupt Capacity | 3000A @ 125V AC / 1500A @ 250V AC / 5000A @ 32V DC |
| Actuator Style | Flat Rocker |
| Operating Temperature | -40°C to 85°C |
| Certifications | UL 1500, SAE J1171 |
Who This Is For
Marine electricians and boat owners requiring robust overcurrent protection for low-amperage DC circuits or specific AC applications. Ideal for DIYers performing meticulous electrical system installations or upgrades where precision and reliability are paramount.
How It Compares
| Feature | Blue Sea 7399 2.5A Circuit Breaker | Carling Technologies CA1 |
|---|---|---|
| Amperage | 2.5A | 2.5A |
| Actuator Style | Flat Rocker | Contoured Rocker |
| Trip Free Design | Yes | Not Specified |
| Max AC Voltage | 250V AC | 250V AC |
| Max DC Voltage | 32V DC | 32V DC |
Common Concerns Answered
Are specific amperage ratings difficult to find?
While occasional sourcing challenges for niche amperage ratings have been reported, the Blue Sea 7399 is readily available, and Blue Sea Systems maintains a comprehensive catalog for marine electrical needs.
Is mounting the breaker difficult due to torque requirements?
Precise torque application is essential for secure installation, as noted by some users. Following the manufacturer's specifications will ensure a safe and reliable connection, preventing damage to the breaker or panel.
Why is the 'trip free' design important?
The 'trip free' design is a critical safety feature that prevents the breaker from being held closed during a fault condition, ensuring the circuit is immediately opened and preventing potential damage or fire hazards.
Frequently Asked Questions
What is the maximum voltage rating for the Blue Sea 7399 circuit breaker?
The Blue Sea 7399 circuit breaker has a maximum voltage rating of 250V AC and 32V DC.
What is the interrupt capacity of this circuit breaker?
The interrupt capacity is 3000A at 125V AC, 1500A at 250V AC, and 5000A at 32V DC.
Can this circuit breaker be used for both AC and DC circuits?
Yes, this circuit breaker is suitable for both AC (up to 250V) and DC (up to 32V) circuits.
What is the operating temperature range for this breaker?
The operating temperature range for the Blue Sea 7399 is from -40°C to 85°C.
What type of actuator does the Blue Sea 7399 have?
The Blue Sea 7399 features a flat rocker actuator with a flush 'ON' position.
