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Blue Sea 7622 ML-Series 500 Amp 12 Volt ACR
Blue Sea Systems 7622 ML-Series Solenoid 500A 12V Automatic Charge Relay with Manual Control

Blue Sea 7622 ML-Series 500 Amp 12 Volt ACR

On sale$174.95
In stock
p/n:7622


  • Manual control switch provides an added level of safety allowing control with or without power, and offering "Locked Off" capability for servicing
  • Includes ML-Series Remote Control Contura Switch PN 2146
  • 500 Ampere continuous rating
  • Magnetic Latch (ML)-ACR draws very low current (<10 mA to monitor terminal voltage) in the "ON" or "OFF" states, and draws moderate current for very short time when changing state
  • Start Isolation (SI)-Can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics
  • Engine Isolation (EI)-Can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output
  • Senses charging on two battery banks
  • Supports high-output alternators up to 500 Amps
  • LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, in Start or Engine isolation
  • 3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance
  • 7/8" (22mm) stud length accepts multiple cable terminals
  • Label recesses for identification labels
  • Silver alloy contacts provide high reliability for switching live loads
  • CE marked
  • Meets ISO 8846 MARINE and SAE J1171 MARINE external ignition protection requirements
  • Waterproof rated IP66 protected against powerful water jets
  • Read my blog post on how to set up a twin engine boat using these ACR's 
  • Read my blog post on the use of the start isolation feature



  • Remote battery management

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