Description
Blue Sea 7221 30A AC/DC Circuit Breaker | Boat Supply Store
Safeguard your vessel's vital electrical systems with this robust, single-pole, magnetic hydraulic circuit breaker. Designed to integrate switching and protection, it reliably handles both AC (up to 277V) and DC (up to 65V) loads up to 30 Amps, ensuring uninterrupted operation for critical electronics. Meeting stringent marine standards including ABYC and UL 1077, this 'Trip Free' unit guarantees enhanced safety by preventing re-tripping during fault conditions, making it an indispensable component for any serious offshore fishing boat operating in challenging Gulf Coast waters.
Key Features
- Reliable AC / DC Single Pole Magnetic World Circuit Breaker
- Compliant Meets ABYC Standards
- Certified UL 1077 Recognized, TUV Certified, CE marked, CSA Certified
- Integrated Combines switching and circuit protection
- Electronics-Optimized Quick Trip models designed for electronics protection
- Fail-Safe Trip Free design
- Durable Rated for 10,000 switch cycles at rated amperage and voltage
- Versatile Suitable for AC and DC systems
Specifications
| Product Specifications | |
|---|---|
| Brand | Blue Sea Systems |
| Model | 7221 |
| Amperage Rating | 30 Amp |
| Poles | Single Pole |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free |
| Maximum AC Voltage | 277 Volts AC |
| Maximum DC Voltage | 65 Volts DC |
| Switch Cycles | 10,000 |
| Certifications | ABYC Standards, UL 1077 Recognized, TUV Certified, CE marked, CSA Certified |
Who This Is For
Marine electricians and boat builders requiring certified, dependable AC/DC circuit protection for new installations or refits. DIY boat owners focused on safety and reliability for their vessel's electrical systems, especially those powering sensitive electronics.
How It Compares
| Feature | Blue Sea 7221 30A AC/DC Circuit Breaker | Competitor |
|---|---|---|
| Amperage | 30 Amp | 20 Amp |
| Maximum AC Voltage | 277 Volts AC | 277 Volts AC |
| Maximum DC Voltage | 65 Volts DC | 65 Volts DC |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Magnetic Hydraulic - Trip Free |
| ABYC Standards | Meets | Meets |
| UL 1077 Recognized | Yes | Yes |
| Amperage | 30 Amp | 30 Amp |
| Maximum AC Voltage | 277 Volts AC | 120V AC |
| Maximum DC Voltage | 65 Volts DC | 28V DC |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Magnetic |
| ABYC Standards | Meets | Not Specified |
| UL 1077 Recognized | Yes | Not Specified |
Common Concerns Answered
Why is this circuit breaker priced higher than non-marine specific options?
The Blue Sea 7221 is engineered to stringent marine standards (ABYC, UL, TUV, CE, CSA) and utilizes a magnetic hydraulic trip mechanism for reliable performance and safety in harsh marine environments. This superior build quality and adherence to certifications justify the investment for long-term system integrity.
What if I need a different amperage rating or voltage combination?
Blue Sea Systems offers a wide range of circuit breakers, including various amperage ratings and specific AC/DC voltage configurations. Consult the product line or contact us to ensure you select the precise breaker that meets your vessel's unique electrical demands.
Is this breaker always readily available?
Due to their high demand and reputation for quality, certain amperage ratings of Blue Sea circuit breakers can experience high demand. It is advisable to secure necessary components in advance to avoid installation delays, especially during peak boating seasons.
Frequently Asked Questions
What is the maximum voltage this circuit breaker can handle for AC and DC applications?
The Blue Sea 7221 circuit breaker is rated for a maximum of 277 Volts AC and 65 Volts DC.
Is this circuit breaker suitable for both AC and DC systems?
Yes, this single-pole magnetic world circuit breaker is designed for use in both AC and DC electrical systems.
What certifications does the Blue Sea 7221 circuit breaker hold?
The Blue Sea 7221 circuit breaker holds multiple certifications including ABYC Standards compliance, UL 1077 Recognized, TUV Certified, CE marked, and CSA Certified.
What does 'Trip Free' design mean for this circuit breaker?
A 'Trip Free' design means the circuit breaker cannot be held closed or re-tripped while it is actively protecting a circuit from overcurrent or short circuit faults. This enhances safety by ensuring the fault is interrupted.
What is the rated switch cycle for this circuit breaker?
This circuit breaker is rated for 10,000 switch cycles at its rated amperage and voltage, ensuring long-term operational reliability.
