Blue Sea 7139 187 - Series Thermal Circuit Breaker - 50Amp

The 187-Series Thermal Circuit Breakers are expertly designed for marine and boating applications, providing reliable surface mount protection for your vessel's electrical systems. With a robust 50 Amp capacity, this circuit breaker ensures seamless switching and circuit protection, meeting the highest safety standards required for marine environments.

Key Features

• Integrates switching and circuit protection in a single, compact device
• Complies with SAE J1171 for external ignition protection
• Easy-to-use single lever for clear operation
• "Trip Free" mechanism ensures the breaker cannot be held "ON" during a fault condition
• Waterproof construction for reliable performance in harsh marine conditions
• Recessed mounting holes provide a neat and clean installation appearance
• Spacious terminal studs accommodate heavy gauge wire lugs with ease
• Durable 5/16" terminals deliver high torque connections for secure wiring
• Large lever with vertical/horizontal orientation clearly indicates trip status
• Ignition protected, making it safe for installation on gasoline-powered boats

Specifications

Specification
Circuit Breaker Class:	Type III - Switchable / Manual Reset - Trip Free
Type:	Thermally Responsive Bi-Metal Blade
Case Material:	Thermoset Polyester
Voltage Rating:	Up to 48 Volts DC
Interrupt Rating:	5,000 Amperes @ 12 Volts DC 3,000 Amperes @ 24 Volts DC 1,500 Amperes @ 42 Volts DC
Operating Temperature Range:	-25°C to +82°C

Additional Specifications

• Amperage: 50A
• Box Dimensions: 2" H x 5" W x 8" L
• Weight: 0.6 lbs
• UPC: 632085171391

Safety Warning

WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.