Blue Sea Systems 7042 187-Series Panel Mount DC Circuit Breaker 80 Amp

The Blue Sea Systems 7042 is an 80-amp panel mount DC circuit breaker from the 187-Series, designed to combine switching and circuit protection in a single marine-grade device. Built with a thermally responsive bi-metal blade mechanism and trip-free design, this breaker cannot be held in the "ON" position during fault conditions, ensuring reliable protection for electrical systems up to 48V DC.

Key Features:

• Single-lever operation combines circuit protection and switching functionality
• Trip-free design prevents override during fault current conditions
• Waterproof construction for harsh marine environments
• Ignition-protected for safe installation on gasoline-powered vessels
• Recessed mounting holes accept #10 (M5) screws for clean, flush appearance
• Robust 5/16"-18 (M8) terminal studs with 75 in-lb torque capacity accommodate heavy gauge wire lugs
• Large lever with vertical/horizontal orientation provides clear trip status indication
• Thermoset polyester case withstands extreme temperatures from -40°C to 85°C

Technical Specifications:

• Rated Current: 80 Amps
• Maximum Voltage: 48V DC
• Interrupt Capacity: 5000A @ 14VDC, 3000A @ 28VDC, 1500A @ 48VDC
• Circuit Breaker Class: Type III - switchable/manual reset, trip-free
• Terminal Stud Torque: 75 in-lb (8.47 Nm)
• Weight: 0.5 lbs (0.23 kg)

Ideal for marine electrical systems, RVs, and DC power distribution panels where reliable overcurrent protection and switching control are required. Not recommended for use as a switch in applications with high inrush currents.