607375 - Voltage Regulator – 3-Coil

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Voltage Regulator for the dynamo charging circuit, a Lucas RB340-type compensated control box rated at 22 A. Wired between the dynamo and the battery, it regulates the dynamo outpu t to hold the charging voltage steady and prevent overcharging as engine speed and electrical load vary. The three-coil (3-bobbin) RB340 design combines a voltage regulator, a current regulator and a cut-out relay in one housing: the regulators control the dynamo field to limit output, while the cut-out disconnects the dynamo from the battery at low speed to stop the battery discharging back through it. Show more