Victron Argofet 200-3 3 batteries 200A ARG200301020

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SKU: 105621
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The Argofet 200-3 is a FET battery isolator designed for use in charging systems with up to three batteries from a single alternator or output battery charger. It prevents the discharging of accessory batteries when the starter battery is discharged.

Unlike diode battery isolators, the Argofet 200-3 has virtually no voltage loss, with a voltage drop of less than 0.02 Volt at low current and averages 0.1 Volt at higher currents.

It also features a special current-limited energize input for the alternator that powers the B+ terminal when the engine run/stop switch is closed.

Sale price£125.09 GBP Regular price£146.98 GBP

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Argofet 200-3 3 batteries 200A  

Similarly to diode battery isolators, FET isolators allow simultaneous charging of two or more batteries from one alternator (or a single output battery charger), without connecting the batteries together. Discharging the accessory battery for example will not result in also discharging the starter battery.

When using ARGO FET Battery Isolators, there is no need to also increase the output voltage of the alternator. Care should taken however to keep cable lengths short and of sufficient cross section.

Example: When a current of 100 A flows through a cable of 50 mm2 cross section (AWG 0) and 10 m length (30 ft), the voltage drop over the cable will be 0,26 Volt. Similarly a current of 50 A through a cable of 10 mm2 cross section (AWG 7) and 5 m length (15 ft) will result in a voltage drop of 0,35 Volt!

Alternator energize input

Some alternators need DC voltage on the B+ output to start charging. Obviously, DC will be present when the alternator is directly connected to a battery. Inserting a Diode or FET splitter will however prevent any return voltage/current from the batteries to the B+, and the alternator will not start. The new Argofet isolators have a special current limited energize input that will power the B+ when the engine run/stop switch is closed.

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Key Features
  • Virtually no voltage loss
  • Current-limited energize input for alternator
  • Suitable for 200A charging systems
  • Ideal for systems with three batteries
  • Prevents auxiliary batteries from discharging
Maximum Charge Current (A) 200
Maximum Alternator Current (A) 200
Number Of Batteries 3
Connection M8 Studs
Dimensions (mm) H65 x W120 x D200
Weight (kg) 1.4

    Data Sheet

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