Blue Sea 187-Series Surface Mount Circuit Breaker 70A

Heavy-duty circuit protection

The Blue Sea 187-Series Surface Mount Circuit Breaker is designed to protect the wire in electrical systems. Its robust design makes it ideal for marine, and vehicle AC and DC electrical systems. This thermal circuit breaker provides heavy-duty circuit protection for 70 amp loads when switching and circuit protection are both required.

Blue Sea 187-Series Surface Mount Circuit Breaker Features:

• Combines switching and circuit protection into a single device
• Clear, single lever operation
• "Trip Free" design cannot be held "ON" during fault current condition
• Waterproof
• Recessed mounting holes for clean appearance
• Self-trimming case eliminates need for mounting panels or trim bezels
• Large clearance around terminal studs accept heavy gauge wire lugs
• Robust 5/16 M8 terminals provide high torque connections
• Large lever with vertical/horizontal orientation provides indication of trip status
• Ignition protected - Safe for installation aboard gasoline powered boats
• Meets SAE J1171 external ignition protection requirements

Blue Sea 187-Series Surface Mount Circuit Breaker Specifications:

• Part number: 7141
• Amperage: 70A
• Maximum Voltage: 48V DC
• Mounting: Surface 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
• Minimum operating temperature: -40 °C
• Maximum operating temperature: 85 °C
• Case material: Thermoset Polyester
• Circuit breaker class: Type III - switchable/manual reset - trip free
• Mounting hole: Accept #10 (M5) Screw
• Terminal stud size: 5/16" - 18
• Weight: 0.26 kg

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