Blue Sea Solenoid ML-ACR Automatic Charging Relay with Manual Control - 12V DC 500A

ML-Series Automatic Charging Relays (Magnetic Latch) - ML-Series Heavy Duty Automatic Charging Relay

  • Availability:
  • SKU: BSS.7622
  • Manufacturer: Blue Sea
  • MPN:
  • Shipping Weight: 0.93kg
$396.30 inc GST

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ML-Series Automatic Charging Relays (Magnetic Latch) - ML-Series Heavy Duty Automatic Charging Relay

500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine


  • Manual control switch provides an added level of safety allowing control with or without power and offering LOCK OFF capability for servicing
  • Suitable for operation with optional ML-Series Remote Control Contura Switch PN 2146- supplied seperately
  • Automatically manages the charging of two large battery banks
  • Allows paralleling of battery banks for emergency starting
  • 500 Ampere continuous rating to support high-output alternators
  • Magnetic Latch (ML)—ACR draws very low current (<40mA to monitor terminal voltage) in the "ON" or "OFF" states and draws moderate current for very short time when changing state
  • Dual sensing—senses charge on both battery banks
  • 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
  • LED output to remotely indicate when batteries are combined isolated in voltage lockout or 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
  • Silver alloy contacts provide high reliability for switching live loads
  • Label recesses for circuit identification


Does not include ML-Series Remote Control Contura Switch - see BSS.2146 if required



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