{"searchBar":{"inputPlaceholder":"Search by keyword or ask a question","searchBtn":"Search","error":"Please enter a keyword to search"}}
{}

Schneider Electric USA Website

Welcome to our website.

Select your location

Welcome the the Schneider Electric French website. It looks like you are located in the United States, would you like to change your location?

Traduisez en francais
{"support":{"yesButton":"Yes","noButton":"No","feedback":{"title":"What can we do to improve?"},"submitButton":"Submit","successMessage":"Thank you for your feedback","title":"Was this helpful?","feedbackPercentLabel":"of people found this helpful","captcha":{"error":"Please check the box"}}}
Search FAQs

Where can I go to find out what a particular Square D voltage/tap code stands for?E xample: 150T1840H, what does the ``1840`` stand for?

Issue:
Transformers Voltage Code.

Product Line:
LV transformers.

Environment:
Product Characteristics.

Resolution:
Contact Product Marketing/Support for assistance with identifying unknown parameters of Square D low voltage dry type distribution transformer catalog numbers.  Often, Product Marketing/Support (PM) can add value by evaluating the requested information with the application, and may be able to add valuable suggestions.

Example:  The ``1840`` stands for a primary of 480 delta to a secondary of 600 delta with no taps.  PM may offer that this type of voltage change is often used when feeding a 575 volt motor (575 volt motors are used on 600 volt systems.)  With most motors, electrical isolation is not required, but low regulation during startup is.  For this, PM may offer two standard single phase transformers in an open-delta autotransformer connection.  This has the benefit in this instance of being able to use (2) 25S3H transformers off the shelf -- no lead time, lower cost, and lower regulation during startup.  This transformer connection is shown on the bottom of page 11 of the Dry Type Transformer Application Guide, document # 7400HO9501 which is available via the link below.


CTA-ID : 2001823
Explore more
Category:
Transformers

Can't find what you are looking for?

Reach out to our Customer Care team to receive information on technical support, assistance for complaints and more.
Explore more
Category:
Transformers