Blue Sea Circuit Breaker 80A is a high-quality surface-mount circuit breaker that combines overcurrent protection and manual switching in a single compact unit. It provides reliable protection for boats, RVs, and other DC systems while allowing the circuit to be quickly reset without Ropelacing any fuses.

If you need a powerful 80A breaker for equipment such as an inverter, electric motor, charging system, or other high-current DC loads, the Blue Sea 187 Series is designed to handle demanding conditions and deliver dependable protection. Its clearly visible toggle switch acts as both a disconnect and a status indicator.

Overcurrent protection and switch in one unit

The 187 Series combines overcurrent protection and manual disconnection in a single device. After an overload, it can be quickly reset without Ropelacing any components, making the system easier to maintain and more user-friendly.

The large toggle switch is easy to operate even in demanding conditions and clearly shows the breaker’s status.

Safe even in gasoline-powered boats

The Trip Free function prevents the breaker from being forced into the ON position during a fault condition, improving system safety and protecting connected equipment.

Its ignition-protected design meets SAE J1171 requirements, making it safe for use in gasoline-powered marine environments.

Robust construction for demanding environments

The waterproof housing and durable polyester casing resist moisture, vibration, and harsh conditions. Large terminal surfaces make it easy to connect heavy-gauge cables securely.

The recessed design also allows for a clean, professional flush-mounted installation in marine or automotive electrical systems.

Features:

• Circuit breaker and switch in one unit
• Large toggle switch with clear status indication
• Trip Free safety function
• Waterproof construction
• Suitable for surface or flush mounting
• Large contact surfaces for heavy cables
• M8 terminal studs for high-current applications
• Ignition-protected design
• Suitable for gasoline-powered boats

Technical Specifications:

• Rated current: 80 A
• Maximum voltage: 48 V DC
• Mounting: Surface mount
• Breaker type: Thermal bimetal breaker
• Trip type: Type III, manual reset (Trip Free)
• Terminal bolts: 5/16″ (M8)
• Tightening torque: 8.47 Nm
• Interrupt capacity: 5000 A at 12 V DC
• Interrupt capacity: 3000 A at 24 V DC
• Interrupt capacity: 1500 A at 42 V DC
• Operating temperature: -40 °C to +85 °C
• Housing material: Molded polyester resin
• Mounting holes: M5 compatible
• Ring terminal size: 5/16″ – 18
• Weight: 0.26 kg

The Blue Sea Circuit Breaker 80A is a reliable choice for protecting onboard electrical systems. Its high breaking capacity, waterproof construction, and easy reset function make it a durable and dependable solution for demanding marine and mobile applications.