Blue Sea Systems 7140 187 Series Surface Mount Circuit Breaker 60 Amp

The Blue Sea Systems 7140 is a 60-amp thermal circuit breaker from the 187 Series, designed for surface mounting in marine DC electrical systems. This switchable, manual reset circuit breaker combines overcurrent protection and switching functionality into a single robust device, ideal for protecting high-current circuits on boats and recreational vehicles.

Key Features:

• Combines circuit protection and switching into one device for simplified installation
• Trip-free design prevents the breaker from being held in the ON position during fault conditions
• Large single lever with clear vertical/horizontal orientation indicates trip status at a glance
• Waterproof construction suitable for harsh marine environments
• Ignition protected components meet SAE J1171 requirements for safe installation on gasoline-powered vessels
• Recessed mounting holes provide a clean, professional appearance
• Robust 5/16-inch terminal studs with ample clearance accommodate heavy gauge wire lugs and provide high-torque connections

Technical Specifications:

• Circuit Breaker Class: Type III - Switchable/Manual Reset - Trip Free
• Type: Thermally Responsive Bi-Metal Blade
• Current Rating: 60 Amperes
• Voltage Rating: 48 Volts DC Maximum
• Interrupt Rating: 5,000A @ 12V DC, 3,000A @ 24V DC, 1,500A @ 42V DC
• Case Material: Thermoset Polyester
• Operating Temperature Range: -13°F to 180°F (-25°C to +82°C)

This circuit breaker is an essential component for protecting electrical circuits in marine applications, providing reliable overcurrent protection while allowing convenient manual switching of high-current loads.