17-10-2020, 08:48 AM
(16-10-2020, 12:13 PM)JonE Wrote: Cut outs.... does the CFR2 need any form of earth OTHER than its E terminal to earth? Its screwed down but wondered whether there is a hidden earth in the fixing mountings that needs testing.
AFAIK, the only earth is via the 'E' terminal. If you have a meter, you should see continuity from the 'D' terminal to the 'E' terminal if the voltage winding on the cutout bobbin is good. The winding you can see on the cutout bobbin is the current winding, the voltage winding is in much finer wire on the inside, and is usually the one which seems to fail.