125 ARGOFET BATTERY ISOLATORS www.victronenergy.com Victron Energy B.V. | De Paal 35 | 1351 JG Almere | The Netherlands E-mail: sales@victronenergy.com www.victronenergy.com Argofet Battery Isolator Argofet 100-2 Argofet 100-3 Argofet 200-2 Argofet 200-3 Maximum charge current (A) 100 100 200 200 Maximum alternator current (A) 100 100 200 200 Number of batteries 2 3 2 3 Nominal battery voltage 12V and 24V 12V and 24V 12V and 24V 12V and 24V Connection M8 bolts M8 bolts M8 bolts M8 bolts Weight kg (lbs) 1,4 (3.1) 1,4 (3.1) 1,4 (3.1) 1,4 (3.1) Dimensions: h x w x d in mm (h x w x d in inches) 65 x 120 x 200 (2.6 x 4.7 x 7.9) 65 x 120 x 200 (2.6 x 4.7 x 7.9) 65 x 120 x 200 (2.6 x 4.7 x 7.9) 65 x 120 x 200 (2.6 x 4.7 x 7.9) Similarly to Argodiode Battery Isolators, Argofet 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. In contrast with Diode Battery Isolators, FET Isolators have virtually no voltage loss. Voltage drop is less than 0,02 Volt at low current and averages 0,1 Volt at higher currents. When using Argofet Battery Isolators, there is no need to also increase the output voltage of the alternator. However, care should be taken 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 Argodiode or Argofet 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. Argofet Battery Isolators With alternator energize input Argofet 100-3 3bat 100A Argofet 100-3 3bat 100A
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