About the 418285-79A
418285-79A MAPS-1 Multi-channel Power Supply
The 418285-79A, fabricated by Reliance Electric, is a Multi-channel power supply. It is important to note this is a high-voltage circuit board that comes with inherent dangers to those who install or maintain the equipment; only well-trained technicians should handle this board.
The 418285-79A is a long, narrow board. It is bisected across its long length into two parts. The board has been drilled at six places along its edges and nylon spacers have been installed in these holes. The board is marked with its board number and use, along with several other codes. It also has several “danger” and “high voltage” warnings printed on its surface.
Components on the 418285-79A include a two-level terminal strip located on the left board edge. There are two header connectors along the top right edge and several stab-on connectors within the body of the board. There are four inductor coils, three rectifier diodes mounted in heat sinks, a fuse component, and a toggle switch. The board also has multiple relays, transformers, and high-voltage surface-mounted electrolytic capacitors. Capacitors of other types, resistors (both metal film and CCRs,) diodes, transistors, potentiometers, and integrated circuits are all used. There is also a line of five red LEDs on the right-hand side of the board.
Additional information regarding the use and proper installation of the board can be found using Reliance product manuals, user guides, and 418285-79A data sheets. It is important for users to read and follow all safety procedures before beginning any kind of installation of this equipment.
