Blue Sea Systems ML Series Remote Battery Switch 12V 500A BS-7700B

Sale price$405.00



  • 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
  • ML-Series Remote Control Contura Switch PN 2145 is available as a seperate item.
  • 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


Control Circuit Connection Tinned Wire
Nominal Voltage 12V DC
Manual Control Yes
Coil Function Bi-Stable
Mounting #10
Amperage Operating Current 0mA
Amperage Operating Current when changing state <7A (40ms)
Terminal Stud Torque 140 in-lb (15.82 Nm)
Control Circuit Voltage 10.1 to 16.5V DC
Continuous Rating 500A
Intermittent Rating 700A (5 min)
Cranking Rating 10 sec 2500A
Cranking Rating 1 min 1100A
Minimum Operating Temperature -10° C
Maximum Operating Temperature 50° C
Cable Size to Meet Ratings 2x (4/0)
Live Current Switching 300A @ 12V DC
Master Control Switch Capability No
Mechanical Endurance 100,000 Cycles
Terminal Ring Diameter Clearance 1.18in (29.97 mm)
Terminal Stud Length 0.875in (22.23 mm)
Terminal Stud Size 3/8″ – 16 (M10)
Weight 0.79 kg

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