350A Dual Circuit PLUS Battery Switch - On/Off/Combine

Choose Blue Sea's 5511e 350A Dual Circuit Plus™ Battery Switch if you have two separate (isolated) batteries that each have their own dedicated loads, and you want to switch them both on or off at the same time, with just a single switch.

This switch takes the place of two separate On/Off battery switches — for example, if you have a dedicated starting battery wired to your engine, and a separate dedicated house battery wired to your circuit breaker panel.

However, this switch also has a "Combine Batteries" position which connects both batteries to all loads for emergency situations where you need the power of both batteries for use with either load. Typically you would use this function for emergency engine starting if your starter battery is low.
The 5511e Battery Switch can handle continuous loads of up to 350 Amperes.

• Isolates Start and House circuits, and combines both battery banks for emergency starting
• Ignition protected - safe for installation aboard gasoline powered boats
• Make-before-break contact design allows combining batteries without power interruption
• Case design allows surface or rear panel mounting
• Tactile indicator convery knob position by feel
• Tin-plated 3/8-16 (M10) copper studs provide maximum conductivity and corrosion resistance
• 7/8" (22mm) stud length to accept multiple cable terminals
• One-piece construction to reduce risk of overheating
• Case design allows surface mounting or rear panel mounting
• Accepts up to 4/0 AWG (95mm²) battery cables