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Blue Sea 7623100 ML ACR Charging Relay 24V 500A w/Manual Control  Deutsch Connector [7623100] - The Rod Box
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    Blue Sea 7623100 ML ACR Charging Relay 24V 500A w/Manual Control Deutsch Connector [7623100]

    $218.95 $307.99

    7623100 ML ACR Charging Relay 24V 500A with Manual Control & Deutsch Connector

    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
    • 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


    • Control Circuit Connection: Deutsch DTM
    • Nominal Voltage: 24VDC
    • Manual Control: Yes
    • Engine Isolation: Yes
    • Mounting: #10
    • Start Assist: Yes
    • Start Isolation: Yes
    • Amperage Operating Current: 13mA
    • Amperage Operating Current When Changing State: <7.0A
    • Terminal Stud Torque: 140 in-lb (15.82 Nm)
    • Continuous Rating: 500A
    • Intermittent Rating: 700A (5 min)
    • Cranking Rating 30 Seconds: 1450A DC
    • Cable Size to Meet Ratings: 2x (4/0)
    • Live Current Switching: 300A@12VDC
    • Switching Cycles: 100,000
    • Terminal Ring Diameter Clearance: 1.18" (29.97 mm)
    • Terminal Stud Length: 0.875" (22.23 mm)
    • Terminal Stud Size: 3/8" - 16 (M10)