Description
Blue Sea 7442 15A UL-489 Circuit Breaker | Boat Supply Store
Designed for stringent marine electrical safety compliance, this 15A DC circuit breaker safeguards critical systems where standard protection is insufficient. It features a robust magnetic hydraulic, trip-free mechanism and offers a 10000A interrupt capacity, ensuring reliable overcurrent protection up to 80V DC. This breaker is essential for vessels operating under CFR 46 regulations, including Navy, Army, and Coast Guard vessels, demanding certified safety and performance.
Key Features
- Certified UL-489 Listed for critical marine applications
- Robust Magnetic Hydraulic - Trip Free operation prevents nuisance tripping
- High Capacity 10000A Interrupt Capacity for enhanced safety
- Versatile 15A DC Amperage rating suits many circuits
- Reliable 80V DC Maximum Voltage rating for DC systems
- Durable #10-32 Screw Tin-Plated Brass Terminals ensure secure connections
- User-Friendly Flat Rocker actuator style for easy operation
- Compliant Single Pole configuration for isolation
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 7442 UL-489 Circuit Breaker |
| Amperage | 15A DC |
| Voltage | 80V DC Max |
| Poles | 1 Pole |
| Actuator Style | Flat Rocker |
| Mechanism | Magnetic Hydraulic - Trip Free |
| Terminals | #10-32 Screw Tin-Plated Brass |
| Interrupt Capacity | 10000A |
| UL-489 Listed | Yes |
Who This Is For
Marine professionals and boat owners requiring certified circuit protection for critical systems on government vessels and other vessels operating under CFR 46 regulations. This breaker is ideal for applications demanding the highest level of safety and reliability.
How It Compares
| Feature | Blue Sea 7442 15A UL-489 Circuit Breaker | Blue Sea Systems 7443 UL |
|---|---|---|
| Amperage | 15A DC | 20A DC |
| Maximum Voltage | 80V DC | 80V DC |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Magnetic Hydraulic - Trip Free |
| Interrupt Capacity | 10000A | 10000A |
| UL-489 Listed | Yes | Yes |
Common Concerns Answered
Why are UL-489 specifications important for marine circuit breakers?
UL-489 listing signifies that the circuit breaker has undergone rigorous testing and certification for use in demanding marine environments, ensuring superior safety, reliability, and performance, especially critical for government and commercial vessels.
What is the main difference between this breaker and a standard breaker?
The Blue Sea 7442 is UL-489 certified, indicating a higher standard of safety and performance for critical applications, unlike non-certified breakers which may not meet stringent marine regulations or offer the same level of protection.
Is this breaker suitable for my vessel if it's not a Navy or Coast Guard vessel?
Yes, if your vessel operates under CFR 46 regulations or requires certified UL-489 protection due to the critical nature of the electrical systems, this breaker provides the essential safety and reliability mandated for such applications.
Frequently Asked Questions
What is the interrupt capacity of the Blue Sea 7442 circuit breaker?
The Blue Sea 7442 circuit breaker has an interrupt capacity of 10000A.
What type of actuator does the Blue Sea 7442 circuit breaker have?
The Blue Sea 7442 circuit breaker features a Flat Rocker actuator style.
What is the maximum DC voltage rating for the Blue Sea 7442 circuit breaker?
The maximum DC voltage rating for the Blue Sea 7442 circuit breaker is 80V DC.
What terminal type is used on the Blue Sea 7442 circuit breaker?
The Blue Sea 7442 circuit breaker utilizes #10-32 Screw Tin-Plated Brass terminals for secure connections.
What does 'trip-free' mean in the context of this circuit breaker?
'Trip-free' operation means that the circuit breaker cannot be manually held in the ON position when an overcurrent or short circuit condition exists, ensuring it will always trip to protect the circuit.
