Description
Blue Sea 7444 30A UL-489 Circuit Breaker | Boat Supply Store
For safeguarding critical DC electrical systems on government and commercial vessels, this Blue Sea Systems 7444 breaker ensures unparalleled reliability and safety. Engineered with magnetic hydraulic, trip-free technology, it operates at a maximum of 80V DC and possesses an interrupt capacity of 10000A. Its UL-489 listing signifies adherence to stringent safety standards, a requirement for vessels operating under CFR 46 regulations.
Key Features
- Certified UL-489 Listed for critical applications
- Robust 30A DC Amperage rating
- Ergonomic Flat Rocker actuator style
- Simple 1 Pole configuration
- High 80V DC Maximum Voltage
- Reliable Magnetic Hydraulic - Trip Free operation
- Durable #10-32 Screw Tin-Plated Brass Terminals
- Powerful 10000A Interrupt Capacity
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 7444 |
| Amperage Rating | 30A DC |
| Actuator Style | Flat Rocker |
| Poles | 1 |
| Maximum Voltage | 80V DC |
| Circuit Breaker Technology | Magnetic Hydraulic - Trip Free |
| Terminal Type | #10-32 Screw Tin-Plated Brass |
| Interrupt Capacity | 10000A |
| Compliance | UL-489 Listed |
Who This Is For
Marine electricians and vessel operators who demand certified, highly reliable circuit protection for DC systems, particularly those on government or commercial vessels. It is also suitable for boat owners with complex DC electrical configurations requiring robust safety features.
How It Compares
| Feature | Blue Sea 7444 30A UL-489 Circuit Breaker | Blue Sea Systems 7445 UL |
|---|---|---|
| Amperage | 30A DC | 40A DC, 20A DC |
| Maximum Voltage | 80V DC | 80V DC, 28V DC |
| UL-489 Listed | Yes | Yes, No |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Magnetic Hydraulic - Trip Free, Thermal |
| Interrupt Capacity | 10000A | 10000A, null |
Common Concerns Answered
Are there alternatives if I need a specific, less common amperage rating?
While finding exact amperage ratings for specialized older systems can be challenging, Blue Sea Systems offers a comprehensive range of UL-489 circuit breakers in various amperages to suit diverse marine applications. Consult the full Blue Sea Systems catalog for the most extensive options.
Why is the price higher than non-certified breakers?
The increased cost of UL-489 certified breakers like the Blue Sea 7444 reflects the rigorous testing, manufacturing standards, and the inherent safety and reliability assurances they provide. This certification is crucial for critical applications where failure is not an option.
How does the magnetic hydraulic trip mechanism benefit my system?
Magnetic hydraulic trip-free technology ensures that the breaker will trip and remain tripped even if the actuator is held in the ON position during a fault. This prevents damage to electrical circuits and equipment by providing consistent and reliable protection against overcurrents and short circuits.
Frequently Asked Questions
What is the interrupt capacity of the Blue Sea 7444 circuit breaker?
The Blue Sea 7444 circuit breaker has an interrupt capacity of 10000A, meaning it can safely interrupt and clear a fault current of up to 10,000 amperes.
What type of actuator does the Blue Sea 7444 circuit breaker have?
The Blue Sea 7444 circuit breaker features a flat rocker actuator style for easy engagement and disengagement.
What is the maximum DC voltage rating for the Blue Sea 7444 circuit breaker?
The maximum DC voltage rating for the Blue Sea 7444 circuit breaker is 80V DC.
What terminal type is used on the Blue Sea 7444 circuit breaker?
The Blue Sea 7444 circuit breaker utilizes #10-32 screw tin-plated brass terminals for secure electrical connections.
Why are UL-489 specifications important for marine circuit breakers?
UL-489 listing signifies that a circuit breaker has met stringent safety and performance standards established by Underwriters Laboratories for use in critical applications, ensuring a high level of protection against electrical hazards in the demanding marine environment.
