JRC 17-100A Basic Wiring Diagram


6 Volt Single phase replacement for Lucas rectifier and zenor diode.

1. Disconnect the ground wire from your battery.  Observe if your system is positive or negative ground.

2. Locate and remove the old rectifier. You will no longer need it. (Hint: it’s black and has three fins)

3.There should be three wires connected to the rectifier. The Green/White and Green/Yellow go to the alternator stator.   The “hot” wire is usually Brown/White.  This goes to the hot side of the battery.

5.Connect these two wires to the two green wires on the charging module.

6. Mount the power module in an area with free air circulation (i.e, do not mount inside enclosed area). Note- The heat sink is electrically isolated and does not have to be grounded.

7. If your system is positive earth, connect the red wire to ground and the black wire to output.

8. If your system is negative earth, connect the black wire to ground and the red wire to output.
(Note- Be sure you have the polarity correct, otherwise you can damage the regulator)

9. Now that you are sure everything is connected correctly, re-connect the ground wire to battery.