Description
Blue Sea 7404 20A Circuit Breaker | Boat Supply Store
Protect vital DC and AC circuits on your vessel with a robust single-pole breaker engineered for marine environments. This unit features a reliable magnetic hydraulic trip mechanism within a compact, trip-free design that prevents operational defeat during fault conditions. With a 2" flat rocker actuator and a clear color indicator for the OFF state, it ensures easy identification and operation even in dimly lit bilge spaces or crowded electrical panels. It reliably handles up to 250 Volts AC or 80 Volts DC, making it suitable for a wide array of applications from navigation lights to bilge pumps.
Key Features
- Single Pole Configuration for dedicated circuit protection
- Small Case design optimizes space on electrical panels
- 2" Flat Rocker Actuator for intuitive operation
- 20 Amp Rating for specific circuit loads
- Trip Free Design ensures safety by preventing manual reset during a fault
- Color Actuator provides clear visual indication of the OFF state
- Magnetic Hydraulic Trip Mechanism offers dependable fault detection
- UL Recognized Component for certified safety and reliability
Specifications
| Product Specifications | |
|---|---|
| Poles | Single |
| Case Size | Small |
| Actuator Type | 2" Flat Rocker |
| Amperage Rating | 20 Amp |
| Trip Mechanism | Magnetic Hydraulic |
| Design | Trip Free |
| Maximum AC Voltage | 250 Volts AC |
| Maximum DC Voltage | 80 Volts DC |
| Rated Switch Cycle | 10,000 at rated amperage and voltage |
| Actuator Indicator | Color indicates OFF position |
Who This Is For
Boat owners and marine electricians requiring dependable overcurrent protection for DC and AC marine electrical systems. Ideal for DIYers undertaking electrical upgrades or repairs on vessels up to 80 feet.
How It Compares
| Feature | Blue Sea 7404 20A Circuit Breaker | Competitor |
|---|---|---|
| Amperage Rating | 20 Amp | 20 Amp, 20 Amp |
| Poles | Single | Single, Single |
| Maximum AC Voltage | 250 Volts AC | N/A, 250V AC |
| Maximum DC Voltage | 80 Volts DC | 28V DC, 50V DC |
| Actuator Type | 2" Flat Rocker | Rocker, Rocker |
| Trip Mechanism | Magnetic Hydraulic - Trip Free | Thermal-Magnetic, Thermal-Magnetic |
Common Concerns Answered
Is the physical size a concern for installations with very limited panel space?
While designed for efficiency, some users might find the physical dimensions slightly larger than anticipated for exceptionally confined installations. Careful measurement of your panel space is recommended prior to purchase.
Can I find this specific amperage rating easily if I need a replacement in a pinch?
While this 20 Amp rating is a common requirement, occasional reports suggest localized availability challenges. Purchasing spares or verifying local stock beforehand is advisable for critical system components.
The price seems higher than some other breakers. Is it worth the investment?
The Blue Sea 7404's price reflects its superior magnetic hydraulic trip mechanism, trip-free design, and UL Recognized Component status, all critical for marine-grade reliability and safety. This investment ensures long-term protection for your vessel's electrical systems.
Frequently Asked Questions
What is the maximum voltage this circuit breaker can handle?
This circuit breaker is rated for a maximum of 250 Volts AC or 80 Volts DC.
What is the trip-free design and why is it important?
The trip-free design ensures the breaker cannot be manually held in the ON position during an overcurrent or short-circuit fault. This is crucial for safety, as it guarantees the circuit will disconnect regardless of user action.
What does the color actuator indicate?
The color actuator on the Blue Sea 7404 provides a clear visual indication of the breaker's OFF position, facilitating quick identification and troubleshooting.
What is the rated switch cycle life of this breaker?
The rated switch cycle life for this breaker is 10,000 cycles at its rated amperage and voltage, indicating substantial operational longevity.
Is this circuit breaker suitable for both AC and DC applications?
Yes, the Blue Sea 7404 is designed to be suitable for both AC (up to 250V) and DC (up to 80V) marine electrical systems.
