0-52850

About the 0-52850

Reliance Electric is the manufacturer for the 0-52850 IRFA printed circuit board. This board is typically marked with the Reliance Electric logo. However, your board may be marked as coming from ABB (Asea Brown Boveri) or from Baldor-Reliance, depending on the year of its manufacture. The part number should be the same. The 0-52850 functions as a Ring Counter and Firing Card.  The printed circuit board is connected to a narrow faceplate. The faceplate is designed with a single push button switch located in its bottom third. This is labeled “Test Pulse.” The faceplate also carries the component number and the Reliance logo. It has:

• two screws to lock the board into position within the rack system.
• a grid marked on one axis with letters and on its other axis with numbers
• the component identification number
• a single potentiometer
• three resistor network arrays
• multiple capacitors and resistors
• several TP test points
• over twenty-five integrated circuits
• seven transistors
• a tab that is covered with conductive material

Information regarding the installation or operation of the board may be found through Reliance publications like manuals, data sheets, or user guides.   These publications will also give the user more information regarding the safe handling of this board. As the original equipment manufacturer, Reliance Electric was responsible for its technical support. The board uses primarily ceramic capacitors, but also has capacitors made from polyester vinyl and other materials.