Description
Blue Sea 7427 10A Circuit Breaker | Boat Supply Store
This Blue Sea Systems 7427 single-pole circuit breaker provides essential overload protection for marine electrical systems, preventing damage from excessive current draws. Its magnetic hydraulic mechanism ensures reliable tripping under fault conditions, unlike simpler thermal breakers, and it features a 'trip free' design that prevents holding the breaker 'ON' during a fault. With a robust 10,000 rated switch cycle and a dual AC/DC voltage rating up to 250V AC / 80V DC, this 10 Amp breaker is suitable for a wide range of applications on vessels operating in challenging saltwater environments.
Key Features
- Single Pole configuration for dedicated circuit protection.
- Small Case design conserves panel space.
- 2" Slot Reset Rocker Actuator for intuitive manual operation.
- 10 Amp Rating for controlled current management.
- Color Actuator clearly indicates 'OFF' status.
- 'Trip Free' Design prevents overriding fault protection.
- Magnetic Hydraulic Mechanism for reliable, consistent tripping.
- 10,000 Rated Switch Cycles ensures long-term operational integrity.
Specifications
| Product Specifications | |
|---|---|
| Breaker Type | Magnetic Hydraulic - Trip Free |
| Amperage Rating | 10 Amp |
| Actuator Type | Rocker |
| Actuator Size | 2" Slot |
| Poles | Single Pole |
| Maximum Voltage AC | 250 Volts |
| Maximum Voltage DC | 80 Volts |
| Rated Switch Cycles | 10,000 |
Who This Is For
Marine electricians and boat owners seeking robust, reliable circuit protection for 12V or 24V DC systems, or up to 250V AC systems requiring a 10 Amp rating. Ideal for those performing electrical system upgrades or repairs where dependable fault interruption is critical.
How It Compares
| Feature | Blue Sea 7427 10A Circuit Breaker | Competitor |
|---|---|---|
| Amperage | 10 Amp | 10 Amp, 10 Amp |
| Max Voltage | 250V AC / 80V DC | 28V DC, 28V DC |
| Circuit Breaker Type | Magnetic Hydraulic - Trip Free | Thermal Reset, Thermal |
| Actuator Type | Rocker | Rocker, Rocker |
| Rated Switch Cycles | 10,000 | Varies (typically lower for thermal), Varies |
Common Concerns Answered
Will the 2" slot size fit my existing panel?
The 2" slot size is specific and may require panel modification if you are replacing a breaker with different dimensions. Please verify your panel cutout dimensions before purchasing.
Does this breaker meet safety standards?
Yes, the Blue Sea 7427 is a UL Recognized Component, signifying adherence to important safety and performance benchmarks for electrical safety in marine applications.
Why is this breaker more expensive than basic thermal types?
This breaker utilizes a magnetic hydraulic mechanism for superior fault detection and a 'trip free' design, offering enhanced reliability and safety compared to simpler thermal breakers, which justifies the investment for critical systems.
Frequently Asked Questions
What is the maximum voltage this circuit breaker can handle?
The Blue Sea 7427 is rated for a maximum of 250 Volts AC and 80 Volts DC.
What does 'trip free' design mean for this circuit breaker?
A 'trip free' design ensures that the breaker cannot be held in the 'ON' position when a fault current is present, providing absolute protection against circuit overload.
What is the rated switch cycle for this breaker?
This breaker is rated for 10,000 switch cycles at its rated amperage and voltage, indicating its durability and longevity.
Is this circuit breaker suitable for AC and DC applications?
Yes, the Blue Sea 7427 features a dual voltage rating, making it suitable for both AC and DC marine electrical systems up to its specified voltage limits.
What is the amperage rating of the Blue Sea 7427 circuit breaker?
The Blue Sea 7427 circuit breaker has a precise amperage rating of 10 Amps.
