Description
Blue Sea 40A Push Button Circuit Breaker | Boat Supply Store
Protect critical 12V or 24V DC marine circuits from overcurrent conditions with this ignition-protected circuit breaker. Engineered for reliability on vessels, particularly those with gasoline engines, it features a thermal trip mechanism and a trip-free design to prevent manual or automatic resetting of an over-tripped breaker. Its compact form factor and #8 screw terminals facilitate secure connections and installation in high-density configurations, handling up to 3000A at 14.7V interrupt capacity.
Key Features
- Reliable thermal trip mechanism for overcurrent protection.
- Trip-free design prevents manual or automatic resetting of an over-tripped breaker.
- Ignition protected, essential for gasoline-powered engine compartments.
- Push-button reset operation for convenient restoration of power.
- Compact design optimizes space in high-density electrical panels.
- Secure connections via #8 screw terminals.
- Panel Mount capability with 3/8-27 UNS thread.
- UL 1500 Certified for ignition protection.
Specifications
| Product Specifications | |
|---|---|
| Amperage | 40 Amp |
| Voltage Rating | 32V DC |
| Trip Type | Thermal Trip |
| Reset Type | Push Button Reset Only |
| Terminal Type | #8 Screw Terminal |
| Interrupt Capacity | 3000A @ 14.7V / 2500A @ 28V |
| Mounting Thread | 3/8-27 UNS |
| Ignition Protected | Yes |
Who This Is For
Marine enthusiasts and boat owners requiring robust and resettable circuit protection for 12V or 24V DC systems. Ideal for electricians working on vessels where ignition protection is a critical safety requirement, especially with gasoline engines.
How It Compares
| Feature | Blue Sea 40A Push Button Circuit Breaker | Competitor |
|---|---|---|
| Amperage | 40A | 40A (fuse), 40A |
| Reset Type | Push Button Reset Only | Fuse Replacement, Push Button Reset |
| Terminal Type | #8 Screw Terminal | Blade Terminal (for fuse), 3/8"-16 Stud Terminal |
| Ignition Protected | Yes | Not specified, Yes |
Common Concerns Answered
I need to connect higher gauge wires, are screw terminals sufficient?
While #8 screw terminals offer a secure connection for many marine applications, for extremely high current applications or user preference, stud terminals like those on the Blue Sea Systems 2140 may be preferred. The #8 screw terminals on this unit are rated for appropriate conductor sizes within its 40A rating.
My boat is often exposed to significant spray, is this breaker protected from water?
This circuit breaker is ignition protected and designed for marine environments. For installations in extremely wet locations, an optional waterproof boot can provide additional protection against moisture ingress, which is a common consideration for offshore vessels.
Are there less expensive circuit protection options available?
While generic alternatives may have a lower initial cost, the Blue Sea Systems 2137 offers critical marine-specific features like ignition protection and a trip-free design, backed by a reputation for quality and reliability. This ensures enhanced safety and long-term performance, justifying the investment for vital electrical systems.
Frequently Asked Questions
What is the amperage rating of the Blue Sea Systems 2137 circuit breaker?
The Blue Sea Systems 2137 circuit breaker has an amperage rating of 40 Amps.
What is the maximum voltage this circuit breaker can handle?
This circuit breaker is designed to handle a maximum voltage of 32V DC.
What type of reset mechanism does this circuit breaker have?
This circuit breaker features a push-button reset mechanism only.
Is this circuit breaker ignition protected?
Yes, the Blue Sea Systems 2137 is ignition protected, meeting UL 1500 standards.
What is the terminal type for this circuit breaker?
The terminal type for this circuit breaker is #8 screw terminal.
