Blue Sea Systems ML Series RBS 12V 500A Auto Release BS-7713B

Sale price$460.00


Auto Releasing ML-Series Remote Battery Switch with SPST Switching Provides 500A switching and features of current ML Remote Battery Switches, but can be controlled with SPST or SPDT switch for applications where a normally open relay is desired. 500 Amp magnetic latching switch provides high amperage switching under load, manually or from remote locations.


  • 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
  • ML-Series Remote Control Contura Switch  is not included. PN 2155 available as a separate item.


Control Circuit Connection Tinned Wire
Nominal Voltage 12V DC
Coil Function Auto-Releasing
Mounting #10
Amperage Operating Current 8mA when OFF 13mA when ON
Amperage Operating Current when changing state <7A (40 ms)
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 30 sec 1450A DC
Minimum Operating Temperature -10°C
Maximum Operating Temperature 60°C
Cable Size to Meet Ratings 2x (4/0)
Live Current Switching 300A @ 12V DC
Master Control Switch Capability Yes
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 2.07lb (0.94 kg)

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