Tripp Lite
1111 W. 35th Street
Chicago, IL 60609
+1 (773) 869-1776
+1 (773) 869-1329

Locating Serial Numbers on Legacy Tripp Lite Products

Tripp Lite's legacy products may contain a product label that does not resemble the 18-character serial numbers used for our current product lineup. For more information on identifying the serial number of a recently purchased product, visit our Locating Product Information page.

Stock Number and Date Code

Instead of a serial number, older products may contain a label that includes a stock number and date code for product verification. You will need both numbers when you register the product on this web site or if you need to return the product to us for replacement under warranty.

The product's stock number is typically prefaced by the letters "P/N":

product stock number

The product's date code is typically prefaced by the letters "D/C":

product date code

If you are still having difficulty identifying a product number or if your product does not contain a product number, please contact Tripp Lite Product Support for additional assistance.

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+1 (773) 869-1776

Mon - Fri: 8 AM - 5:30 PM CST
+1 (773) 869-1234

Tripp Lite
1111 West 35th Street
Chicago, Illinois 60609
United States

+1 (773) 869-1111 Main
1 773.869.1329 Fax

Business Hours
8 AM - 5:30 PM CST

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Need help with your purchase?
We're always available to help with questions, including product selection, sizing, installation and product customization. Call us at +1 (773) 869-1776 or email