Description
Blue Sea 7289 80A 3-Pole AC Breaker | Boat Supply Store
Protecting 240-volt AC main circuits on vessels requires robust and reliable components. This triple pole circuit breaker offers a substantial 5,000 Ampere interrupt capacity, ensuring safety during fault conditions. Its trip-free design prevents re-engagement when a fault is present, safeguarding the electrical system and adhering to stringent ABYC standards for critical AC power distribution.
Key Features
- Meets ABYC requirements for 120/240 Volt 50 Ampere main protection
- Triple pole configuration for effective 240-volt AC main circuit switching
- All poles trip simultaneously if any single pole encounters a fault
- Trip-free design prevents operator override during fault conditions
- 5,000 Ampere interrupt capacity provides significant fault current handling
- C-Series Toggle for tactile feedback and reliable operation
- White aesthetic for clean panel integration
- Engineered for marine environments, ensuring longevity and safety
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 7289 C-Series |
| Type | Triple Pole Circuit Breaker |
| Amperage Rating | 80A |
| Voltage Rating | 240V AC |
| Interrupt Capacity | 5,000A |
| Poles | 3 |
| Color | White |
| Design | Trip-Free |
| Termination Style | Toggle |
Who This Is For
Marine electricians and system designers requiring secure and compliant 240-volt AC main circuit protection for vessels. Boat owners needing reliable overcurrent protection for high-demand AC systems will also find this breaker essential.
How It Compares
| Feature | Blue Sea 7289 80A 3-Pole AC Breaker | Blue Sea Systems 7288 C |
|---|---|---|
| Poles | 3 | 2, 3 |
| Amperage | 80A | 80A, 80A |
| Interrupt Capacity | 5,000A | 5,000A, 6,000A |
| Marine Specific Design | Yes | Yes, No |
Common Concerns Answered
Why is this breaker more expensive than non-marine grade options?
This Blue Sea Systems breaker is engineered and tested to rigorous marine standards, ensuring superior corrosion resistance, vibration tolerance, and safety features like a 5,000A interrupt capacity, which justifies the higher cost for critical vessel electrical systems.
Are all amperage ratings readily available?
While common amperage ratings like 80A are generally well-stocked, specific or less common ratings may experience fluctuating availability due to high demand for specialized marine electrical components.
I've seen cheaper breakers; what makes this one worth the investment?
The Blue Sea 7289's value lies in its marine-grade construction, ABYC compliance, triple-pole functionality for 240V AC, a 5,000A interrupt rating, and a crucial trip-free design, all engineered to withstand harsh marine environments and protect your vessel's vital electrical systems reliably.
Frequently Asked Questions
What is the ampere interrupt capacity of the Blue Sea 7289 circuit breaker?
The Blue Sea 7289 features a robust 5,000 Ampere interrupt capacity, indicating its ability to safely interrupt severe fault currents.
Can this triple pole breaker be used for a 120-volt AC main circuit?
While this breaker is designed for 240-volt AC main circuits (hot to hot), a triple pole configuration is generally not required or standard for a single 120-volt AC main circuit. For 120V AC main protection, a single or double-pole breaker is typically used.
What does 'Trip Free' design mean for this circuit breaker?
A 'trip-free' design means the circuit breaker cannot be manually held in the ON position when a fault condition exists. This crucial safety feature ensures the breaker will trip and interrupt the circuit, preventing damage or hazards.
Is this circuit breaker suitable for 240-volt AC main circuits?
Yes, the Blue Sea 7289 is specifically designed and rated for 240-volt AC main circuit protection, including hot-to-hot switching common in marine shore power systems.
What is the purpose of the triple pole configuration in this breaker?
The triple pole configuration is used to simultaneously switch and protect both hot conductors of a 240-volt AC circuit, ensuring that if a fault occurs on either hot line, all three poles trip, disconnecting power from both lines for comprehensive safety.
