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ASCO Warranties

Use the form below to register the following products:


  • 300 Group 1 (3AUS/3NUS/300/386/Others)
  • 300 Group G (3ATS/3NTS/3ADTS/3NDTS)
  • 4000 (4ATS/4NTS/4AUS/Others)
  • 7000 (7ATS/7NUS/7AUS/Others)

Or go to the ASCO Series 165/185 Residential Power Transfer Switch warranty registration page.

* Indicates fields are required
Product Serial Number   Product Catalog Number   Date of Installation
* First Name   
  Middle Name
* Last Name   
* Title   
* Department   
* Company Name   
* Street Address
* City   
* Zip Code   
* Phone   
* Email   
Please fill-in the following optional information to better serve your facility:
1) Alternate Power Sources
2) Which of the following best describes industry location?
3) Which manufacturer's automatic transfer switches are installed at this location?