About the 0-51890-1
0-51890-1 DPSB Power Supply board 250 V
The 0-51890-1 is a Power Supply module manufactured by Reliance Electric. This board and attached faceplate are designed to be used within Reliance drives. While it typically is marked with a Reliance logo, in some cases this component may originate from Baldor Reliance, or in more rare instances, from ABB.
The 0-51890-1 has a wide front panel populated with two set screws (top and bottom) that lock the module into place once it is set in place in a rack system. The module has one LED indicator and a large terminal strip covered by its own removable cover. This terminal strip is numbered from one to seven, and is labeled below its bottom edge as “250 Volt Power Supply.” The front panel has a small opening to allow wires from the circuit board to reach the terminal strip.
The 0-51890-1 is populated by three bipolar transistors mounted to heat sinks. Surface wires attach to the poles of these components. The board has a single large transformer, several wire-wound resistors, along with CCR resistors, diodes, and capacitors made from electrolytic material and from polyester vinyl. The board has several stab-on connectors. The rear edge of the board is populated by a metal board that carries several more screw mounted components.
Reliance Electric has more information available on the 0-51890-1 regarding its operation and installation. This can be found through publications like manuals and user guides. Please read and follow all recommended handling and safety procedures.
