Please Note: This part is only available in increments of 5. For example, the 48051 with a rating of 75A has a per leg rating of 37.5A per leg.

All Littelfuse–Cole Hersee brand battery isolators have a per leg rating equal to half the alternator rating. A 4-stud battery isolator can be used with older pattern alternators (in this case the 4th stud will remain unconnected), but a 3-stud battery isolator cannot be used with the Delcotron-type alternator.īattery isolators have a ‘per leg’ rating which indicates the maximum current it can deliver to either battery. This item: Cole Hersee 48070-BX Battery Isolator Guard (70 Hencol 30) 70.00 70. The newer alternators were first introduced by Delco and are therefore sometimes called ‘Delcotron-type alternators’. The small 4th stud is for connection to a circuit switched by the ignition switch. Most alternators on new vehicles have an integral electronic voltage regulator that requires the use of the 4-stud battery isolator. The amp rating of each item is the maximum alternator rating. In addition, both batteries can be charged simultaneously from one source. KKK-A-1822B.įor vehicles with two batteries, these devices electrically isolate the batteries to prevent the battery with the higher charge from draining into that with the lower charge. With Schottky diode, to comply with Federal Spec. The Smart Battery Isolator is available in 85A and 200A versions.The Cole Hersee Diode Battery Isolator 48051-BX is used to isolate medical equipment batteries from vehicle batteries. Cole Hersees 48540 FlexMod Smart Battery Isolator Controller monitors two battery banks and controls one or more relays or contactors to make sure starting power is protected by isolating the starting and auxiliary battery banks. Easy to install, the smart battery isolator also features an LED status indicator and operational start assist. No diode efficiency losses occur when using Cole Hersee’s smart battery isolator, and it also allows bi-directional charging from alternator or from other power chargers/converters. Because the smart battery isolator reduces charging system workload by not connecting to the auxiliary battery until the primary battery is charged to 13.2V, there is lower strain on expensive charging components, extending the product life. Additionally, Cole Hersee’s smart battery isolator is smaller, lighter and generates less heat than competitive products. Smart Isolators are more flexible than traditional Battery Isolators.

Ideal for electrical applications, the smart battery isolator prevents loads on the auxiliary battery from draining the starting battery.The smart battery isolator provides a more flexible solution than traditional isolators, as it is not specific to an alternator type. Smart Battery Isolator, 48525 Cole Hersee, 85 Amp at 12V DC, Prevents loads on auxiliary battery from draining the starting battery. Disconnect Both Batteries - Install the isolator on a panel as close as possible to the alternator and main battery. ELECTRONICS: Cole Hersee Co., a leading manufacturer of heavy-duty electrical, electronic, and digital products for the vehicle industry, introduces its new Smart Battery Isolator 4850. Battery Isolators Part Numbers: 48162, 48122, 48070, 48090, 48120, 48160, and 48161 Installation Assemble the Battery Isolator in the following sequence: 1.

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