Rectifier, general
Arrow points in the direction of the current flow as indicated by a DC ammeter. Electron flow is in the opposite direction.
![Figure-D-49-Rectifi-er-semiconductor[1]](http://machineryequipmentonline.com/electric-equipment/wp-content/uploads/2020/06/Figure-D-49-Rectifi-er-semiconductor1.jpg "Figure-D-49-Rectifi-er-semiconductor[1]")
![Figure-D-54-Resistor-adjustable-rheo[2]](http://machineryequipmentonline.com/electric-equipment/wp-content/uploads/2020/06/Figure-D-54-Resistor-adjustable-rheo2.jpg "Figure-D-54-Resistor-adjustable-rheo[2]")
A shunt (Fig. D-57) is typically used on an ammeter or a current trans- former. A shunt should be installed on any secondary of a current trans- former when it is not connected to a load.
![Figure-D-61-When-the-outputs-and-inp[1]](http://machineryequipmentonline.com/electric-equipment/wp-content/uploads/2020/06/Figure-D-61-When-the-outputs-and-inp1.jpg "Figure-D-61-When-the-outputs-and-inp[1]")
![Figure-D-65-Foot-switch-closed-by-fo[1]](http://machineryequipmentonline.com/electric-equipment/wp-content/uploads/2020/06/Figure-D-65-Foot-switch-closed-by-fo1.jpg "Figure-D-65-Foot-switch-closed-by-fo[1]")
![Figure-D-71-Pressure-switch-closed-b[2]](http://machineryequipmentonline.com/electric-equipment/wp-content/uploads/2020/06/Figure-D-71-Pressure-switch-closed-b2.jpg "Figure-D-71-Pressure-switch-closed-b[2]")
![Figure-D-75-Switch-fl-ow-open-on-fl-[1]](http://machineryequipmentonline.com/electric-equipment/wp-content/uploads/2020/06/Figure-D-75-Switch-fl-ow-open-on-fl-1.jpg "Figure-D-75-Switch-fl-ow-open-on-fl-[1]")
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