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electrical system of a Komatsu excavator

The electrical system of a Komatsu excavator includes the starter, alternator, battery, and control boards, made from stainless steel, aluminum, and pure copper with thermal insulation to ensure stable operation from -20°C to 80°C. The starter operates at 150 A and 24 V, delivering an initial torque of up to 600 Nm. The alternator is designed for 24 V and 80 A output, featuring automatic charge control and overload protection.

Electrical connections include PVC-insulated copper cables, corrosion-resistant metals, 100 A fuses, and vibration-resistant relays. The battery has a 150 Ah capacity and over 5 years of operational life. Performance testing includes vibration, thermal shock, EMC, and full-load current according to ISO 16750, ensuring safety and longevity of electrical components under harsh working conditions.
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