Blue Sea 7141 187 - Series Thermal Circuit Breaker - 70Amp

The 187 Series Thermal Circuit Breakers provide dependable circuit protection and switching capabilities tailored for marine and boating applications. Engineered for surface mounting, this 70 Amp circuit breaker ensures your vessel's electrical system remains secure and efficient in harsh marine environments.

Key Features

• Integrates switching and circuit protection into one reliable device
• All components comply with SAE J1171 external ignition protection standards
• Easy-to-use single lever operation for quick control
• "Trip Free" mechanism prevents the breaker from being held "ON" during fault conditions
• Waterproof design suitable for marine environments
• Recessed mounting holes provide a clean and streamlined appearance
• Ample clearance around terminal studs accommodates heavy gauge wire lugs
• Durable 5/16" terminals ensure high torque connections
• Large lever with both vertical and horizontal orientations indicates trip status clearly
• Ignition protected, making it safe for installation on gasoline-powered boats

Specifications

General Specifications
Circuit Breaker Class:	Type III - Switchable / Manual Reset - Trip Free
Type:	Thermally Responsive Bi-Metal Blade
Case Material:	Thermoset Polyester
Voltage Rating:	48 Volts DC Maximum
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: 70A
• Box Dimensions: 3" H x 5" W x 8" L
• Weight: 0.6 lbs
• UPC: 632085071417

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.