TagLine Here
Blue Sea Systems, 7622, ML-ACR Automatic Charging Relay with Manual Control - 12V DC 500A
The images shown are for illustration purposes only and may not be an exact representation of the product

Blue Sea Systems, 7622, ML-ACR Automatic Charging Relay with Manual Control - 12V DC 500A

  • Model: 7622
  • GTIN: 00632085076221
  • Manufactured by: Blue Sea Systems
  • Condition: New
  • Estimated Delivery: 1 to 2 Weeks
  • Lead Time To Ship May Vary
  • Price: $424.69  $326.69
    500 Amp magnetic latching (bi-stable) relay automaticallycombines batteries during charging and isolates batterieswhen 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
    • Includes ML-Series Remote Control Contura Switch PN 2146
    • 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
    • Instructions
    • ML-ACR Troubleshooting Guide
    Control Circuit ConnectionTinned Wire
    Nominal Voltage12V DC
    Manual ControlYes
    Engine IsolationYes
    Start AssistYes
    Start IsolationYes
    Amperage Operating Current13mA
    Amperage Operating Current when changing state<7.0A
    Terminal Stud Torque140 in-lb (15.82 Nm)
    Continuous Rating500A
    Intermittent Rating700A (5 min)
    Cranking Rating 30 sec1450A DC
    Cable Size to Meet Ratings4/0 AWG x 2
    Live Current Switching300A @ 12V DC
    Switching Cycles100000
    Terminal Ring Diameter Clearance1.12in (28.45 mm)
    Terminal Stud Length1.50in (38.1 mm)
    Terminal Stud Size3/8" - 16 (M10)
    Wire Size20 AWG
    Relay Contact Position
    Combine 30 sec13.5V
    Combine 90 sec13.0V
    Open 10 sec12.35V
    Open 30 sec12.75V
    Open High16.2V
    Weight2.06lb (0.93 kg)
    12146SPDT Remote Control Contura Switch - ON-OFF-ON
    Optional Accessories
    9160ML Series Link Bus
    1147Remote Control Panel

    Product Reviews