• GE/ITI Transformers

600 Volt Current Transformers

Multi-Ratio Toroid Indoor


  • Many different models with numerous window sizes and ratios
  • These models provide up to ten different ratios from one CT.
  • UL recognized – file number E93779
  • Manufactured to meet the requirements of IEEE C57.13
  • Voltage Class: 600V
  • BIL Rating: 10kV
  • Primary Current:50 to 5000 A


Multi-ratio current transformers are designed to enable the customer to obtain several current ratios from a single CT. These models are used for relaying applications.

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ITI uses quality materials and innovative designs to achieve the best possible performance while maintaining competitive prices. All units are constructed with copper windings and grain-oriented silicon core steel. This construction provides high accuracy and low losses. All of our 5 to 34.5 kV instrument transformers are partial discharge tested in accordance with Canadian Standard C9-M1981 to ensure long insulation life. ITI has a strong commitment to customer service. We offer a level of service and engineering support unmatched by our competitors. Many of our products are made to suit specific customer applications. Our application engineering team is ready to provide solutions for your transformer needs.

  • Literature
  • Specifications
Model #pdf Description 600V 10 kV BIL
115mr Window Diameter: 4.00″
117mr Window Diameter: 4.62″
135mr Window Diameter: 5.75″
137mr Window Diameter: 5.50″
139mr Window Diameter: 6.50″
140mr Window Diameter: 8.13″
141mr Window Diameter: 8.13″
142mr Window Diameter: 7.25″
143mr Window Diameter: 7.31″
306mr Window Diameter: 4.50″
307mr Window Diameter: 4.50″
308mr Window Diameter: 5.75″
309mr Window Diameter: 5.75″
386mr Window Diameter: 4.50″
387mr Window Diameter: 4.50″
388mr Window Diameter: 5.75″
389mr Window Diameter: 5.75″
681mr Window Diameter: 7.02″
686mr Window Diameter: 7.02″
781mr Window Diameter: 6.50″
786mr Window Diameter: 6.50″