0-51903

About the 0-51903

The 0-51903 is made by Reliance Electric as a Power Supply card. The 0-51903 like many other Reliance Electric circuit board features a grid pattern on the surface labeled with letters on the left edge and numbers across the top. The 0-51903 has ten large black thick film resistors. Each of the thick film resistors is marked on the outside with white letters and numbers to identify those particular resistors abilities. Each resistor is marked differently. The black resistors can be found in the numeric grid lines between zero and fifteen. From numeric grid lines fifteen through twenty-five you’ll find six small polypropylene style capacitors and a large metal encased capacitor. The large metal capacitor and each of the polypropylene capacitors have their abilities written on the outside in black letters and numbers. Between the numeric grid lines twenty-five and thirty, you will find twelve diodes with a circle printed on the circuit board to indicate that is the way the energy flows. There are also two smaller metal encased capacitors with their abilities written in black on the outside. Between grid lines thirty and forty you will find a huge metal encased capacitor, two small metal encased capacitors, and a large polypropylene capacitor, each having their abilities written on them. From grid lines forty to fifty on the lower portion of the 0-51903 there are two more huge metal encased capacitors with their abilities written on them. Finally on the upper portion of the 0-51903 from numeric grid lines forty to sixty-five id a large metal housing with a total of six screws, along with two small green fusible resistors just above the metal housing.