Description
Blue Sea 7454 5A UL-489 Circuit Breaker | Boat Supply Store
For applications demanding uncompromising safety and adherence to stringent regulatory standards, this breaker provides certified protection. It boasts a 5A AC rating and a robust magnetic hydraulic trip-free mechanism to safeguard critical marine electrical systems. Designed for high-risk environments, its 5000A interrupt capacity ensures system integrity during fault conditions, making it indispensable for government or commercial vessels operating under CFR 46.
Key Features
- Certified Protection: Meets stringent UL-489 specifications for critical marine applications.
- Reliable Interruption: Features a magnetic hydraulic trip-free mechanism for consistent fault disconnection.
- High Capacity: Offers a substantial 5000A interrupt capacity for superior safety.
- Versatile Voltage: Rated for up to 240V DC maximum voltage, accommodating diverse system needs.
- Precise Control: 5A AC rating ensures appropriate current limitation for sensitive circuits.
- Durable Terminals: Equipped with #10-32 screw tin-plated brass terminals for secure connections.
- User-Friendly Actuator: Utilizes a flat rocker actuator for straightforward operation.
- Single-Pole Design: Provides single-pole circuit protection for focused control.
Specifications
| Product Specifications | |
|---|---|
| Amperage | 5A AC |
| Voltage | 240V DC Max |
| Poles | 1 |
| Actuator Style | Flat Rocker |
| Trip Mechanism | Magnetic Hydraulic - Trip Free |
| Interrupt Capacity | 5000A |
| Terminal Type | #10-32 Screw Tin-Plated Brass |
| UL Listing | UL-489 |
Who This Is For
This circuit breaker is engineered for marine electricians and vessel operators, particularly those involved with government or commercial fleets like Navy, Army, or Coast Guard vessels. It is essential for any application requiring strict compliance with CFR 46 regulations and certified circuit protection.
How It Compares
| Feature | Blue Sea 7454 5A UL-489 Circuit Breaker | Competitor |
|---|---|---|
| Amperage | 5A AC | 5A, 5A |
| Maximum Voltage | 240V DC | 28V DC, 32V DC |
| Interrupt Capacity | 5000A | 3000A, 1000A |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Thermal, Fuse |
| UL-489 Listed | Yes | No, No |
Common Concerns Answered
Why does this breaker cost more than standard options?
The Blue Sea 7454 meets stringent UL-489 specifications, a critical safety certification required for government and commercial vessels. This certification ensures a higher level of reliability and performance under fault conditions, justifying the investment for applications where safety and compliance are paramount.
Is this breaker hard to find?
This specialized UL-489 rated breaker is typically available through authorized marine electrical suppliers, ensuring you receive genuine components that meet rigorous standards. Availability is focused on ensuring quality and compliance for critical marine systems.
Is the higher price justified for my recreational boat?
While UL-489 certification is often mandated for commercial and government vessels, its superior safety and reliability make it an excellent choice for any boater prioritizing critical circuit protection. The 5000A interrupt capacity and trip-free mechanism offer peace of mind in demanding marine environments.
Frequently Asked Questions
What is the interrupt capacity of the Blue Sea 7454 circuit breaker?
The Blue Sea 7454 circuit breaker features a robust interrupt capacity of 5000A, ensuring it can safely handle and disconnect high fault currents.
What type of actuator does the Blue Sea 7454 circuit breaker have?
The Blue Sea 7454 circuit breaker is equipped with a flat rocker actuator, providing a distinct and easy-to-operate switch for circuit control.
What is the maximum voltage rating for the Blue Sea 7454 circuit breaker?
This circuit breaker is rated for a maximum voltage of 240V DC, offering versatility for various marine electrical system configurations.
What are the terminal types on the Blue Sea 7454 circuit breaker?
The Blue Sea 7454 circuit breaker utilizes #10-32 screw terminals constructed from tin-plated brass, ensuring secure and corrosion-resistant electrical connections.
Why are UL-489 specifications important for marine circuit breakers?
UL-489 listing signifies that a circuit breaker has undergone rigorous testing and meets strict safety standards for use in critical applications, particularly on vessels operating under government or commercial regulations. This ensures superior reliability and protection against electrical faults, which is crucial for safety at sea.
