Blue Sea Ml-Series Heavy Duty Automatic Charging Relay 7622

Blue Sea Ml-Series Heavy Duty Automatic Charging Relay 7622

  • $297.68
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Blue Sea Systems Ml-Series Heavy Duty Automatic Charging Relay 7622

500 amp rated ML-ACR automatically combines (2) 12 volt DC battery banks during charging & isolates batteries when they are discharging or when starting engines.


  • ML-ACR automatic charging relay with manual override control

  • Manual control switch provides an added level of safety allowing control with or without power

  • Control switch can be locked in OFF position for safety during servicing

  • Start isolation can be configured for temporary isolation of house loads from engine circuit during engine cranking to protect sensitive electronics

  • Engine Isolation can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output

  • Magnetic Latch ACR draws very low current to monitor terminal voltage in the "ON" or "OFF" states

  • Allows paralleling of battery banks for emergency starting

  • Automatically manages the charging of two large battery banks

  • Senses charging from two separate sources

  • LED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or in start or engine isolation

  • Includes Remote Control Contura Switch PN 2146 (ON-OFF-ON action)

  • 12 volt DC coil voltage

  • Bi-stable ML-coil function

  • 300 amps @ 12 volts DC live current switching rating

  • 500 amp continuous rating

  • 700 amp intermittent rating

  • 3/8”-16 (M10) tin-plated copper terminal stud

  • 7/8 in. (22 mm) stud length to accept multiple cable terminals

  • 1 /4 in. x .032 in. male quick connect terminal for ground

  • Silver alloy contacts provide high reliability for switching live loads

  • One piece stainless flange nuts ensures secure connections

  • Stripped wire cable end

  • Label recesses for circuit identification

  • Waterproof rated IP66 – protected against powerful water jets

  • Meets ISO 8846 and SAE J1171 – ignition protection requirements

  • CE marked

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