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

Instrument Transformers

Used for measurement and control of distribution equipment

Available in multiple window sizes and configurations to maximize applications. Square D offers 3 models of voltage transformers.

Schneider Eletric Square D Picture
Instrument Transformers
  • Features

    Square D Current Transformers are available in General Purpose Round, Toridal, Bushing, Rectangular, and Split Core configurations.

    • General Purpose Round Current Transformers - Specifically designed for ammeter and solid-state transducer applications. Design allows for low cost compact solution with good electrical performance.
    • Toridal Current Transformers - Extremely wide range of ratios available, along with wide range of window sizes from 1.13 in (28 mm) to 8.13 in (206 mm).
    • Rectangular Current Transformers - design for bus conductor applications instead of wire; 2 window sizes.
    • Split Core Current Transformers - Design for easy installation over existing bus or cable connections; available in 2 configurations.
    • Bushing Current Transformers - Designed to be installed into breaker cradle, allowing bus to be centered in the CT allowing potential to stay below 600V even in medium voltage applications.


    Square D offers 3 models of voltage transformers:

    • 450R: Designed for accurate voltage measurements with 0.3 accuracy; designed for switchboard use with a wide range of electrical indicating, recording instruments and protective relays in power systems
    • 460R: Designed for voltage indication with lower accuracy and smaller burdens; designed for use with voltmeters, transducers and other types of electrical indicating and recording instrumentation
    • 470R: Designed for extremely accurate voltage measurement where low burden is to be used; ideal for applications such as input to PLC modules and other electronic devices with high input impedance

    Current Transformers

    • High thermal ratings for short time use
    • Molded thermo-plastic cases
    • Permanent polarity marks molded into case and large easy to read ratios
    • Rugged mounting brackets
    • Large combination of product available through Square D (2 Distribution Centers)

    Voltage Transformers

    • ANSI C57.13 and CSA C13
    • UL recognized XODW2
    • Permanent polarity marks are molded into the case
    • Ratio clearly marked on case
    • Fully insulated threaded studs and nuts for customer connections
    • 10kV BIL, 60HZ, 600 V, ANSI C57.13