Blue Sea 7138 187 - Series Thermal Circuit Breaker - 40Amp

The Series 187 Thermal Circuit Breaker is engineered specifically for marine and boating applications, providing a dependable solution for managing and protecting your vessel's electrical systems. With its robust construction and advanced features, this 40 Amp surface mount circuit breaker ensures seamless integration and reliable performance in demanding maritime environments.

Key Features

• Combines switching and circuit protection into a single, efficient device
• Components meet SAE J1171 external ignition protection standards
• Clear, single lever operation for easy control
• "Trip Free" design prevents the breaker from being held "ON" during fault conditions
• Waterproof construction suitable for marine environments
• Recessed mounting holes provide a clean and streamlined appearance
• Generous clearance around terminal studs accommodates heavy gauge wire lugs
• Durable 5/16" terminals allow for high torque connections
• Large lever with vertical and horizontal orientations clearly indicates trip status
• Ignition protected, making it safe for installation on gasoline-powered boats

Specifications

Part Number (PN):	7138
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
Amperage:	40A
Dimensions:	2"H x 5"W x 8"L
Weight:	0.6 lbs
UPC:	632085171384

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.

Additional Specifications

• Amperage: 40A
• Box Dimensions: 2"H x 5"W x 8"L
• Weight: 0.6 lbs
• UPC: 632085171384

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.