{"product_id":"ml-acr-automatic-charging-relay-with-manual-control-12v-dc-500a-1-ma","title":"ML-ACR Automatic Charging Relay with Manual Control - 12V DC 500A","description":"\u003cimg align=\"right\" vspace=\"20\" hspace=\"20\" class=\"mx-auto\" title=\"Blue Sea Systems\" alt=\"Blue Sea Systems\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1078\/5560\/files\/BlueSeaSystems.png\"\u003e\n\u003cp\u003e\u003cstrong\u003e500 Amp magnetic latching (bi-stable) relay automatically combines batteries during charging and isolates batteries when discharging and when starting engine\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eManual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing\u003c\/li\u003e\n\u003cli\u003eIncludes ML-Series Remote Control Contura Switch PN 2146\u003c\/li\u003e\n\u003cli\u003eAutomatically manages the charging of two large battery banks\u003c\/li\u003e\n\u003cli\u003eAllows paralleling of battery banks for emergency starting\u003c\/li\u003e\n\u003cli\u003e500 Ampere continuous rating to support high-output alternators\u003c\/li\u003e\n\u003cli\u003eMagnetic Latch (ML)—ACR draws very low current (\u0026lt;40mA to monitor terminal voltage) in the \"ON\" or \"OFF\" states, and draws moderate current for very short time when changing state\u003c\/li\u003e\n\u003cli\u003eDual sensing—senses charge on both battery banks\u003c\/li\u003e\n\u003cli\u003eStart Isolation (SI)—can be configured for temporary isolation of House loads from Engine circuit during engine cranking to protect sensitive electronics\u003c\/li\u003e\n\u003cli\u003eEngine Isolation (EI)—can be configured for isolation of two engines while both are running to protect engine electronics and maximize alternator output\u003c\/li\u003e\n\u003cli\u003eSenses charging on two battery banks\u003c\/li\u003e\n\u003cli\u003eLED output to remotely indicate when batteries are combined, isolated, in voltage lockout, or in Start or Engine isolation\u003c\/li\u003e\n\u003cli\u003e3\/8\"-16 tin-plated copper studs for maximum conductivity and corrosion resistance\u003c\/li\u003e\n\u003cli\u003e7\/8\" (22mm) stud length accepts multiple cable terminals\u003c\/li\u003e\n\u003cli\u003eSilver alloy contacts provide high reliability for switching live loads\u003c\/li\u003e\n\u003cli\u003eLabel recesses for circuit identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-md-8\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003ctable id=\"specifications\" class=\"product_table masonry-brick\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: center;\" colspan=\"2\"\u003eSpecifications\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"257\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eControl Circuit Connection*\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003eTinned Wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"173\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"307\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eManual Control**\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"48\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eEngine Isolation***\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"256\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eMounting\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e#10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"46\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eStart Assist****\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"45\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eStart Isolation*****\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"210\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eAmperage Operating Current\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e13mA ******\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"253\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eAmperage Operating Current when changing state\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e\u0026lt;7.0A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"8\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eTerminal Stud Torque\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e140 in-lb (15.82 Nm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"70\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eContinuous Rating*******\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e500A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"198\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eIntermittent Rating********\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e700A (5 min)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"124\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eCranking Rating 30 sec*********\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e1450A DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"290\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eMinimum Operating Temperature\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e-10° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"291\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eMaximum Operating Temperature\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e60° C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"10\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eCable Size to Meet Ratings\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e4\/0 AWG x 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"203\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eLive Current Switching\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e300A @ 12V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"145\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eStud Material\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003eTinned Copper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"201\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eSwitching Cycles\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e100000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"255\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eTerminal Ring Diameter Clearance\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e1.12in (28.45 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"254\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eTerminal Stud Length\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e1.50in (38.1 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"26\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eTerminal Stud Size\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e3\/8\" - 16 (M10)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"134\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eWire Size\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e20 AWG\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"331\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eRelay Contact Position\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"205\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eCombine 30 sec\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e13.5V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"206\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eCombine 90 sec\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e13.0V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"207\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eOpen 10 sec\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e12.35V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"208\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eOpen 30 sec\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e12.75V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"209\" class=\"even\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eOpen High\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e16.2V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr id=\"16\" class=\"odd\"\u003e\n\u003ctd class=\"spec_title\" style=\"text-align: center;\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"spec_value\" style=\"text-align: center;\"\u003e2.06lb (0.93 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e*Provided on retail units\u003c\/p\u003e\n\u003cp\u003e**Manual control switch provides an added level of safety allowing control with or without power, and offering LOCK OFF capability for servicing.\u003c\/p\u003e\n\u003cp\u003e***Condition: Two engines are running\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne relay is open and one relay is closed\u003c\/li\u003e\n\u003cli\u003eEngine 1 Start and Engine 2 Start batteries are isolated to protect engine electronics\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e****Condition: Engine starting\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRelay is closed combining batteries\u003c\/li\u003e\n\u003cli\u003eBatteries are combined to share power in the event of a low start battery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*****Condition: Engine starting\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRelay is open isolating batteries\u003c\/li\u003e\n\u003cli\u003eBatteries are isolated to protect sensitive electronics from voltage sags and spikes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e******@ 25°C nominal VDC\u003c\/p\u003e\n\u003cp\u003e*******The maximum current a switch is designed to conduct for an indefinite period.\u003c\/p\u003e\n\u003cp\u003e********The maximum amount of current a switch is designed to carry for a minimum of a designated period of time.\u003c\/p\u003e\n\u003cp\u003e*********Normally associated with 'cranking current' which is the current required by the starter circuit prior to engine starting. The cranking current varies significantly during the starting cycle. Initially, there is a large surge of current required to overcome the inertia and compression of the engine. This surge can be two to four times the average cranking current. Once the engine is turning there are peaks and valleys as the pistons go through the compression and exhaust cycles. The cranking current rating is used for sizing batteries, cables, and battery switches.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"col-md-4 text-center\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Blue Sea Systems","offers":[{"title":"Bulk (OEM)","offer_id":40595399213114,"sku":"MA BSS7622B","price":234.68,"currency_code":"GBP","in_stock":false},{"title":"Retail Packaging","offer_id":40595399245882,"sku":"MA BSS7622","price":282.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1078\/5560\/files\/7622_1.jpg?v=1724939299","url":"https:\/\/shop.chastheboat.co.uk\/products\/ml-acr-automatic-charging-relay-with-manual-control-12v-dc-500a-1-ma","provider":"ChasNewensMarine","version":"1.0","type":"link"}