How can we help you today?

How do you properly connect or wire a transformer with the voltage codes SV43 and S43 Rated for 120 x 240 - 12/24 volts?

Issue:
How do you properly connect or wire a transformer with the voltage codes SV43 & S43?

Product Line:
LV Transformers

Environment:
Applies to Single Phase Transformers with SV43 & S43 voltage code

Resolution:
Connections depend on your application

Primary
- For 240V 1Ph 2W Connect H2 & H3 together and apply primary 240V lines to H1 and H4 (Series Connection)
- For 120V 1Ph 2W Connect H1 and H3 together and connect H2 & H4 together then apply 120V lines to H1 and H4 (Parallel Connections)

Secondary
- For 24V Connect X2 and X3 together and bond to equipment ground or building ground per NEC Code, 24V Outputs are X1 and X4. (Series Connection)
- For 12V Connect X1 and X3 and connect X2 and X4, 12V Outputs are X1 and X4, X2 and X4 and bond to equipment ground or building ground per NEC Code (Parallel Connection)

Schneider Electric USA

Attachment(s)
SV43.JPG.jpg [17.01 KB]
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 Catalogue
  • Blog
  • Events
  • Schneider Electric Community
  • Sustainability
  • Privacy Policy
  • Cookie Notice
  • Terms of use
  • Change your cookie settings