How can we help you today?

Will old Masterpact MP breaker trip units STR28D, STR38S, or STR58U work in the Masterpact NW breaker?

Issue:
Will the STR trip units used on the MP Masterpacts work on the new NT/NW Masterpact breakers?

Product Line:
Masterpact Circuit Breakers

Resolution:
No. The control units for the old Masterpact will not work in the NW.

Schneider Electric USA

Explore more
Range:
Users group

Discuss this topic with experts

Visit our community and get advice from experts and peers on this topic and more
Explore more
Range:

Need help?

Need help?

Product Selector

Product Selector

Quickly and easily find the right products and accessories for your applications.

Get a Quote

Get a Quote

Start your sales inquiry online and an expert will connect with you.

Where to buy?

Where to buy?

Easily find the nearest Schneider Electric distributor in your location.

Help Center

Help Center

Find support resources for all your needs, in one place.

  • Help and Contact Center
  • Contact Sales
  • Find our Offices
  • Where to Buy
  • Tech Support: 877-342-5173
  • Careers
  • Company Profile
  • Investors
  • Newsroom
  • Report a Misconduct
  • Product Documentation
  • Software and Firmware
  • Product Selector
  • Product Replacement
  • DigestPLUS Online Catalog
  • Industries
  • Partners
  • Schneider Electric Community
  • Events
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings