The Blue Sea Systems 187-Series Thermal Circuit Breaker is a panel-mount device that combines switching and circuit protection into a single, waterproof unit. Engineered for durability and safety, this Type III thermally responsive bi-metal blade breaker features a trip-free design that prevents it from being held ON during a fault condition.
Key Features:
- Amperage: 135A
- Voltage Rating: 48V DC maximum
- Ignition protected: Meets SAE J1171 requirements, safe for installation on gasoline-powered boats
- Installation: Round case design for easy hole saw mounting with recessed holes for a clean finish
- Terminal Hardware: 5/16" studs designed for high torque and heavy gauge wire lugs
- Operational Status: Clear lever indicates trip status and allows for manual switching
- Interrupt Rating: 5,000A at 12V DC, 3,000A at 24V DC, and 1,500A at 42V DC
- Operating Temperature: -25°C to +82°C
- Case Material: Thermoset polyester
Regulatory note: This product includes a Proposition 65 warning regarding chemicals, including di(2-ethylhexyl)phthalate (DEHP), known to the State of California to cause cancer, birth defects, or other reproductive harm.
Product facts
- CT SKU
- CT-100428
- Model / MPN
- 7047
- UPC / GTIN
- 632085070472
- Package dimensions
- 3" X 4" X 7"
- Package weight
- 0.47 lb
- Specifications
- Amperage = 135a
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
Shipping & returns
Shipping & returns
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Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
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Need help choosing?
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