Blue Sea 7042 187-Series Circuit Breaker - Panel Mount 80A

The 7042 187-Series Panel Mount Circuit Breaker is engineered specifically for marine and boating applications, providing reliable circuit protection and seamless switching in a rugged, waterproof design. With its robust construction and precision operation, this 80A breaker ensures your vessel’s electrical systems remain safe and efficiently managed under varying conditions.

Key Features

• Integrated Switching & Protection: Combines switching and circuit protection into a single device*
• Precise Operation: Features a single-lever mechanism for accurate control
• Trip-Free Design: Ensures the breaker cannot be held "ON" during fault current conditions
• Waterproof Construction: Ideal for marine environments, providing reliable performance in wet conditions
• Clean Aesthetic: Recessed mounting holes offer a streamlined appearance
• Heavy-Duty Connectivity: Ample clearance around terminal studs accommodates heavy gauge wire lugs
• High Torque Terminals: Robust 5/16 M8 terminals ensure secure, high torque connections
• Clear Status Indication: Large lever with vertical/horizontal orientation clearly displays trip status
• Ignition-Protected: Safe for installation on gasoline-powered boats, minimizing fire hazards

Specifications

Parameter	Details
Amperage	80A
Maximum Voltage	48V DC
Mounting	Panel Mount
Circuit Breaker Type	Thermally Responsive Bi-metal Blade
Terminal Stud Torque	75 in-lb (8.47 Nm)
Interrupt Capacity	5000A @ 14VDC, 3000A @ 28VDC, 1500A @ 48VDC
Operating Temperature	-40°C to 85°C
Case Material	Thermoset Polyester
Circuit Breaker Class	Type III - Switchable/Manual Reset - Trip-Free
Mounting Hole	Accepts #10 (M5) Screw
Terminal Stud Size	5/16" - 18
Weight	0.50 lb (0.23 kg)
Box Dimensions	2"H x 5"W x 8"L
UPC	632085170424

Important: Do not use as a switch where high inrush currents are expected.

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.