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Blue Sea 7700 ML-Series Solenoid 500 Amps 12V
Blue Sea Systems 7700 Solenoid ML 500A 12V Remote Battery Switch with manual control

Blue Sea 7700 ML-Series Solenoid 500 Amps 12V

On sale$150.95
In stock
p/n:7700

This is a latching solenoid so it only uses energy briefly when being turned on or off. It does however require a three wire connection to the remote switch to achieve this. Its 500 Amp rating makes it suitable for the biggest of battery banks. It features a manual control override on the switch itself.


  • For use as a remote battery switch
  • Includes ML-Series Contura panel switch 2145
  • Manual control switch provides an added level of safety allowing control with or without power, and offering "Locked Off" capability for servicing
  • 500 Ampere continuous rating for engine, inverter, house loads, and emergency battery combine
  • Magnetic latching draws no current in "ON" or "OFF" state, only draws current when changing state of switch
  • Silver alloy contacts provides high reliability for switching live loads
  • 3/8" tin-plated copper studs for maximum conductivity and corrosion resistance
  • 7/8" stud length accepts multiple cable terminals
  • Label recesses for circuit identification
  • CE marked
  • Meets ISO 8846 MARINE and SAE J1171 MARINE external ignition protection requirements
  • Waterproof rated IP66 protected against powerful water jets

  • Specifications




  • Cranking Rating: 10 sec. 2,500 Amps
  • Intermittent Rating: 5 min. 2x (4/0) wire-700 Amps
  • Continuous Rating 2x (4/0) wire-500 Amps
  • Maximum Voltage Rating 32 Volts DC
  • Switching Cycles 10,000 cycles
  • Amperage Operating Current 100mA when changing state
  • Live Current Switching 300A@12V DC-10,000 cycles
  • Control Circuit Voltage 10.1-16.5V
  • Terminal Stud Size 3/8"-16
  • Terminal Stud Torque 140 in-lb max
  • Cable Clearance For 4/0 AWG Cables 1.12"
  • Cable Size to Meet Ratings 4/0 AWG
  • See drawing for dimensions



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