Description
Blue Sea 7035 187-Series 25A Thermal Breaker | Boat Supply Store
Protecting vital 12V, 24V, or 42V DC circuits on gasoline-powered vessels demands specialized protection, and the Blue Sea 7035 187-Series breaker delivers this with integrated switching. It functions as a Type III thermal circuit breaker with a 25 Amp rating and manual reset capability, offering a 5000A @ 12V DC interrupt rating. Its SAE J1171 external ignition protection compliance makes it indispensable for installations within engine compartments on boats operating in coastal Texas waters.
Key Features
- Combines switching and circuit protection for streamlined panel design.
- Compliant with SAE J1171 external ignition protection standards for gasoline engine safety.
- Offers clear, single lever operation for intuitive control and status indication.
- Features a trip-free design, preventing manual closure against an overcurrent condition.
- Provides a waterproof seal for reliable operation in wet marine environments.
- Simplifies installation with a self-trimming case for a clean panel appearance.
- Ensures secure connections with robust 5/16" terminals designed for high torque.
- Facilitates easy identification of trip status via its large, visible lever.
Specifications
| Product Specifications | |
|---|---|
| Amperage Rating | 25 Amp |
| Maximum Voltage Rating | 48V DC |
| Circuit Breaker Type | Type III (Switchable/Manual Reset/Trip Free) |
| Case Material | Thermoset Polyester |
| Ignition Protection | SAE J1171 |
| Waterproof | Yes |
| Interrupt Rating @ 12V DC | 5000A |
| Terminal Size | 5/16" |
Who This Is For
Ideal for marine electricians, boat builders, and DIY boat owners requiring integrated circuit protection and switching for 12V, 24V, or 42V DC systems. It is specifically suited for gasoline-powered vessels necessitating SAE J1171 ignition protection.
How It Compares
| Feature | Blue Sea 7035 187-Series 25A Thermal Breaker | Blue Sea Systems 7036 187 |
|---|---|---|
| Amperage Rating | 25 Amp | 30 Amp, 25 Amp |
| Maximum Voltage Rating | 48 Volts DC | 48 Volts DC, 28 Volts DC |
| Interrupt Rating @ 12V DC | 5,000 Amperes | 5,000 Amperes, 2,500 Amperes |
| Ignition Protection | SAE J1171 | SAE J1171, SAE J1171 |
| Case Type | Thermoset Polyester, Self-trimming | Thermoset Polyester, Self-trimming, Phenolic, Standard |
Common Concerns Answered
Are there known issues with Blue Sea Systems circuit breakers?
While some users have noted occasional stiffness or sensitivity with the lever mechanism on older models, the overall customer sentiment highlights the reliability and robust construction characteristic of Blue Sea Systems products, particularly the 187-Series.
Is it difficult to find replacement parts for this breaker?
Finding specific replacement parts for older models can sometimes be a challenge across the marine electrical industry; however, the 187-Series is designed for longevity and integrated functionality, minimizing the need for individual component replacement over its service life.
Is the price a significant barrier compared to other options?
While the initial investment may be higher than non-marine grade or non-ignition protected breakers, the Blue Sea 7035's specialized marine-grade construction, SAE J1171 ignition protection, and integrated switching capabilities offer superior safety and durability, justifying the cost for critical marine DC systems.
Frequently Asked Questions
What is the voltage rating for the Blue Sea 7035 187-Series Thermal Circuit Breaker?
The Blue Sea 7035 187-Series Thermal Circuit Breaker has a maximum voltage rating of 48V DC.
What is the interrupt rating of this circuit breaker at different voltages?
This circuit breaker has an interrupt rating of 5000 Amperes at 12V DC. The interrupt rating will vary at higher voltages, but the 48V DC maximum is the system limit.
Is the Blue Sea 7035 ignition protected?
Yes, the Blue Sea 7035 is ignition protected and compliant with SAE J1171 external ignition protection standards.
What does 'trip free' design mean in a circuit breaker?
A 'trip free' design means the circuit breaker cannot be manually held in the closed position when an overcurrent condition exists; it will automatically trip open to protect the circuit.
Can this circuit breaker be used in gasoline-powered boats?
Yes, due to its SAE J1171 external ignition protection, this circuit breaker is suitable for use in gasoline-powered boats where ignition sources must be contained.
