Blue Sea Systems 6011 M-Series Dual Circuit Plus Battery Switch

The Blue Sea Systems 6011 M-Series Dual Circuit Plus Battery Switch is a compact, waterproof solution designed to simplify battery management on boats and marine vessels. This innovative switch simultaneously controls two isolated battery banks while maintaining their separation, preventing accidental discharge of your starting battery and protecting sensitive electronics from voltage fluctuations during engine starting.

Key Features:

• Dual circuit design switches two battery banks simultaneously while keeping them isolated
• Emergency combine feature allows drawing power from both batteries for starting or emergency radio calls
• Compact, waterproof construction ideal for tight installation spaces
• Three mounting options: surface mount, flush mount, or rear panel mount
• Ignition protected for safe installation in gasoline engine compartments
• Make-before-break switching eliminates power interruption when changing battery banks
• Tin-plated copper studs provide maximum conductivity and corrosion resistance
• One-piece copper terminal studs measure 7/8" long and accommodate multiple cables
• Tactile textures on switch face enable operation in low-light or no-light conditions
• Removable knob provides security and service lock-out capability
• Includes snap-out isolator covers and labels
• Backed by lifetime warranty

Technical Specifications:

• Switch Type: Dual circuit plus, 3-position (On-Off-Both)
• Maximum Voltage: 32V DC
• Continuous Rating: 300A
• Intermittent Rating: 450A (5 minutes)
• Cranking Rating: 675A per circuit (30 seconds)
• Battery Inputs: 2
• Recommended Cable Size: 4/0 AWG
• Terminal Stud Size: 3/8"
• Mounting Holes: #10 screws
• Certifications: ABYC, UL 1107, UL 1500, SAE J1171

The Blue Sea 6011 is ideal for use with an Automatic Charging Relay (ACR) to automate battery charging while providing simplified manual control. Perfect for sailboats, powerboats, and other marine applications requiring reliable battery isolation and emergency combining capability.