ARGO FET 100-3 3-battery 100 A isolator for reliable marine battery splitting and alternator protection. MOSFET splitter with very low voltage drop compared with diode isolators.

• Maximum charge current: 100 A; maximum alternator current: 100 A.
• Number of batteries: 3; connection: M8 bolts.
• Dimensions: H65 × W120 × D200 mm (H2.56 × W4.72 × D7.87 in); weight: 1.4 kg (3.09 lb); warranty: 5 years.
• When using ARGO FET there is no need to increase alternator output voltage; keep cable lengths short and of sufficient cross section.
• Cable example: 100 A through 50 mm² (AWG 0) over 10 m (30 ft) → 0.26 V drop; 50 A through 10 mm² (AWG 7) over 5 m (15 ft) → 0.35 V drop.
• Alternator energise input: current-limited input to energise B+ via the engine run/stop signal, ensuring the alternator starts with a FET splitter fitted.

Follow manufacturer guidance for installation and consult a qualified marine electrician for correct cable sizing and safe fitting.