7622100 ML ACR Charging Relay 12V 500A with Manual Control & Deutsch Connector500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine.Features:Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicingAutomatically manages the charging of two large battery banksAllows paralleling of battery banks for emergency starting500 Ampere continuous rating to support high-output alternatorsMagnetic Latch (ML)—ACR draws very low current (Dual sensing—senses charge on both battery banksStart Isolation (SI)—can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronicsEngine Isolation (EI)—can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator outputSenses charging on two battery banksLED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or in Start or Engine isolation3/8"-16 tin-plated copper studs for maximum conductivity and corrosion resistance7/8" (22mm) stud length accepts multiple cable terminalsSilver alloy contacts provide high reliability for switching live loadsLabel recesses for circuit identificationSpecifications:Control Circuit Connection: Deutsch DTMNominal Voltage: 12VDCManual Control: YesEngine Isolation: YesMounting: #10Start Assist: YesStart Isolation: YesAmperage Operating Current: 13mAAmperage Operating Current When Changing State: Terminal Stud Torque: 140 in-lb (15.82 Nm)Continuous Rating: 500AIntermittent Rating: 700A (5 min)Cranking Rating 30 Seconds: 1450A DCCable Size to Meet Ratings: 2x (4/0)Live Current Switching: 300A@12VDCSwitching Cycles: 100,000Terminal Ring Diameter Clearance: 1.18" (29.97 mm)Terminal Stud Length: 0.875" (22.23 mm)Terminal Stud Size: 3/8" - 16 (M10)WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.