Blue Sea Systems 7047 Circuit Breaker 135 Amp Panel Mount

The Blue Sea Systems 7047 is a 135 amp thermal circuit breaker designed for marine DC electrical systems. This panel-mount circuit breaker combines switching and circuit protection into a single device, providing both manual control and automatic overcurrent protection for high-amperage circuits.

Key Features:

• 135 amp rating for high-current applications
• Type III switchable design with manual reset and trip-free operation
• Single lever operation with clear ON/OFF indication in vertical or horizontal orientation
• Trip-free design prevents breaker from being held in ON position during fault conditions
• Waterproof construction for harsh marine environments
• Ignition protected - meets SAE J1171 requirements for safe installation on gasoline-powered boats
• Self-trimming round case eliminates need for mounting panels or trim bezels
• Recessed mounting holes for clean, flush appearance
• Robust 5/16-inch terminal studs accept heavy gauge wire lugs with high torque connections
• Easy installation with standard hole saw

Technical Specifications:

• Circuit breaker type: Thermally responsive bi-metal blade
• Maximum voltage rating: 48 Volts DC
• Interrupt rating: 5,000 amps at 12V DC, 3,000 amps at 24V DC, 1,500 amps at 42V DC
• Case material: Thermoset polyester
• Operating temperature range: -13°F to 180°F (-25°C to +82°C)

This circuit breaker is ideal for protecting main power feeds, inverters, windlasses, bow thrusters, and other high-amperage equipment on boats and marine vessels.