Blue Sea Systems 7700 ML-RBS Remote Battery Switch with Manual Control – 12V DC 500A

SKU: BSS-7700

The Blue Sea 7700 ML Remore Battery switch has a 500 Amp Latching switch that provides high amperage switching under load, manually or from remote locations. Because of the magnetic latch, it only draws current when changing the state of the switch. This Switch is good for use in boats or RVs that need the ability to switch off the connection from the engine to the battery.


  • Control Circuit Voltage: 9-16 VDC
  • Nominal Voltage: 12V DC
  • Amperage Operating Current: 0mA
  • Amperage Operating Current when changing state: <7A (40 ms)
  • Terminal Stud Torque: 140 in-lb
  • Terminal Stud Size: 3/8″ – 16 (M10)
  • Weight: 2 lbs.

1 in stock




It is built with a Bi-Stable Coil Function allowing for remote control of the switch. The remote battery switch uses tinned wire, allowing for better protection against corrosion in water. The cranking rating, with/0awg cable, is at 1,100A for 30 seconds. For intermittent rating, with 4/0awg cable, it is 400A for 5 minutes. For continuous (UL 1107) rating, it is 300A.


  • Live Current Switching: 300A at 12V DC
  • The manual override knob provides an added level of safety allowing control with or without power and offering LOCKED OFF capability for servicing
  • LED output to remotely indicate switch state (requires optional LED)
  • 3∕ 8″-16 tin-plated copper studs for maximum conductivity and corrosion resistance
  • 7∕ 8″ (22 mm) stud length accepts multiple cable terminals
  • Label recesses for circuit identification
  • Silver alloy contacts provide high reliability for switching live loads
  • Operational Temperature Range: 14° to 140°F

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