78177-1W

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Reliance Electric Thyristor Rectifier Stack

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  • Part Number: 78177-1W
  • SKU: 781771WRE
  • Manufacturer: Reliance Electric
  • Series: Rectifiers & Misc.

Product Description

78177-1W Reliance Electric Thyristor Rectifier Stack 

The 78177-1W is a Reliance component used in the company’s various drives.  It was built and distributed by Reliance Electric under their company name as well as under the manufacturing names BaldorReliance and ABB/Asea Brown Boveri.  

The 78177-1W is a Thyristor Rectifier Assembly.  It is built from two vertical heat sinks connected across an air gap by two bolt connections.  The top of each heat sink is connected on each side to side brackets for additional support.  One of the heat sinks has a flat bottom edge.  The other is designed with a curved flange bottom with a factory-made drill hole that allows the unit to be bolted into place.  

Other unit components include metal oxide varistors, or MOVs, and SCR diodes. These are mounted in the gap between the two heat sinks and do the actual work of the component.  The unit uses several wired connections to connect components. 

For more information about the 78177-1W, please consult technical support publications like manuals or datasheets originally provided to end users by Reliance.  

The AX Control warehouse and offices are located in  North Carolina at the edge of the high-tech Research Triangle.  Our team ships parts daily, M-F. 

Repair Services For 78177-1W

Type Lead Time Price Action
Repair Service 1-2 weeks $775

Our highly skilled technicians can repair your 78177-1W. 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

78177-1W Manuals, White Papers, Data Sheets, and Troubleshooting