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The 0-51847-1 is a Reliance Voltage Detector Board VLDB



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  • Part Number: 0-51847-1
  • SKU: 0518471RE
  • Manufacturer: Reliance Electric
  • Series: Drive Boards

About the 0-51847-1

0-51847-1  Voltage Detector Board

The 0-51847-1 is a board component originally fabricated by Reliance Electric. This circuit board is now obsolete and is no longer actively manufactured by Reliance. Due to various name changes over the history of the company, your board may be marked Baldor-Reliance or ABB (Asea Brown Boveri.)  The board number should be the same.

The 0-51847-1 functions as a Voltage Detector board.  It has a front faceplate attached to the circuit board via three screws threaded through from the bottom of the board.  This faceplate includes reference to the board number and name (VLDB.) It also has the Reliance logo and a notation that “1 S Relay is energized when light is on.”  This is notated under a single red LED indicator. The faceplate has one rotary dial that is labeled “Bias,” and six screw connections, five of which are labeled 1, 2, 3, 81, and 82.  

The  0-51847-1 board is marked with a grid pattern.  The grid is notated on one side of the board with numbers by fives and on another side of the board by letters.  The edge of the board opposite the faceplate is populated by a ‘tail’ with conductive tabs. These act as a backplane connector.   The board is populated by a single transformer, one relay mounted into a frame that has been screwed to the circuit board, integrated circuits, disc capacitors, transistors, and resistors typically made of metal film.  Other capacitors are also used on the board; these are made from materials like polyester vinyl and aluminum electrolytic. The board has many instances of surface wiring, either from component to component or from board point to board point.  More detailed information can be found through Reliance publications like user guides and manuals.

Frequently Asked Questions about 0-51847-1

Can AX Control repair my 0-51847-1?

Yes. This 0-51847-1 product offering is available for both repair and replacement here at AX Control, with a standard one to two week lead repair time.

How is voltage protection handled in the assembly of this 0-51847-1 product offering?

This 0-51847-1 device's voltage limitation is produced through its internal assembly's inclusion of Reliance Electric-standardized hardware components such as capacitors, diodes, and resistors.
  • O-51847-1

Repair Services For 0-51847-1

Type Lead Time Price Action
Repair Service 1-2 weeks $296

Our highly skilled technicians can repair your 0-51847-1. All of our repairs come with a 3 Year AX Control Warranty. Please contact us for additional information about our repair process. To receive the repair pricing and lead time listed above please process your repair order via our website. The following repair options may be available upon request:

  • 48-72hr Rush Repair
  • Detailed Repair Reports
  • AX Control Certificate of Warranty

AX Control Warranty Info

All products we sell are backed by our unparalleled warranty. A warranty certificate will be provided with your order upon request.
All PLCs, HMIs, and Turbine Control Boards: 3 Years
All AC/DC and Servo Drives: 2 Years
All Motors: 1 Year
Learn More

0-51847-1 Manuals, White Papers, Data Sheets, and Troubleshooting