Description
Blue Sea 7542 15A Circuit Breaker | Boat Supply Store
This single-pole, 15A circuit breaker ensures reliable overcurrent protection for demanding marine electrical systems. Its magnetic hydraulic trip-free mechanism prevents the breaker from being held closed after a trip, safeguarding your equipment, while the 5000A @ 32V DC interrupt capacity provides robust protection. Ideal for installations on gasoline-powered vessels, the ignition-protected design meets SAE J1171 standards, crucial for safety in engine spaces.
Key Features
- Flush rocker actuator in the 'ON' position
- Color-coded actuator indicates 'OFF' position
- Combines switching and circuit protection
- 'Trip Free' design prevents holding closed after trip
- Ignition protected for gasoline-powered boats
- Single pole configuration
- 15A AC/DC rating
- UL 1500 & SAE J1171 certified
Specifications
| Product Specifications | |
|---|---|
| Poles | Single pole |
| Amperage Rating | 15A AC/DC |
| Maximum Voltage AC | 240V AC |
| Maximum Voltage DC | 48V DC |
| Interrupt Capacity AC | 3000A @ 120V AC / 3500A @ 240V AC |
| Interrupt Capacity DC | 5000A @ 32V DC |
| Actuator Type | Flat Rocker |
| Trip Mechanism | Magnetic Hydraulic, Trip-Free |
| Ignition Protection | Yes |
| Certifications | UL 1500, SAE J1171 |
Who This Is For
Marine enthusiasts and boat owners requiring dependable overcurrent protection for essential DC and AC systems. Marine electricians will appreciate its ignition-protected, trip-free design for safe and compliant installations.
How It Compares
| Feature | Blue Sea 7542 15A Circuit Breaker | Not Flush ON |
|---|---|---|
| Amperage | 15A AC / 15A DC | 15A, 15A |
| Poles | 1 | 1, 1 |
| Maximum Voltage (AC) | 240V AC | 240V AC, 250V AC |
| Maximum Voltage (DC) | 48V DC | 48V DC, 50V DC |
| Actuator Style | Flat Rocker (Flush ON) | Contura Rocker (Not Flush ON), Standard Rocker |
| Trip Free Design | Yes | Yes, Not explicitly stated as 'trip-free' in product descriptions |
| Ignition Protected | Yes | Yes, Yes |
| Interrupt Capacity (DC) | 5000A @ 32V DC | 5000A @ 32V DC, 1000A @ 50V DC |
Common Concerns Answered
Some users mention occasional difficulty finding specific torque values for terminals. How can I ensure proper installation?
Refer to the Blue Sea Systems installation manual for recommended torque specifications. Proper crimping of terminals and adherence to torque values are critical for ensuring both electrical integrity and the longevity of the circuit breaker, preventing potential overheating or connection failures.
Are there any common complaints about the Blue Sea 7542's functionality?
While generally highly rated for reliability, some users have noted that the flat rocker actuator may offer less tactile feedback compared to other switch designs. This is a subjective preference; however, the clear visual indication of the ON/OFF positions mitigates this for most.
The price is higher than some generic options. What justifies the cost?
The Blue Sea 7542's value lies in its specific marine-grade construction, ignition protection (UL 1500/SAE J1171 compliant), and 'trip-free' magnetic hydraulic design, offering superior reliability and safety for critical on-board systems compared to less specialized alternatives.
Frequently Asked Questions
What is the maximum voltage rating for the Blue Sea 7542 circuit breaker?
The Blue Sea 7542 circuit breaker is rated for a maximum voltage of 240V AC and 48V DC.
Can this circuit breaker be used for both AC and DC applications?
Yes, the Blue Sea 7542 is designed for both AC (up to 240V) and DC (up to 48V) applications.
What is the interrupt capacity of the Blue Sea 7542 circuit breaker?
The interrupt capacity is 3000A at 120V AC, 3500A at 240V AC, and 5000A at 32V DC.
Is the Blue Sea 7542 circuit breaker ignition protected?
Yes, the Blue Sea 7542 is ignition protected, making it suitable for use on gasoline-powered boats.
What type of actuator does the Blue Sea 7542 circuit breaker have?
The Blue Sea 7542 features a flat rocker actuator. The actuator is flush in the 'ON' position, and the color indicates the 'OFF' position.
