Voltage Indicator for a Medium-Voltage Power System (3.3/7.2/12 kV)

Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

Voltage Indicator for a Medium-Voltage Power System (3.3/7.2/12 kV)

CVDI-12 Voltage Indicator

Our CVDI-12 Voltage Indicator is designed for a system voltage of 3.3 kV, 7.2 kV, or 12 kV.

About the Product

Voltage Indicators help ensure the safety of power system operation. Our CVDI Voltage Indicator comprises of a high-quality voltage monitoring insulator in conjunction with a light indicator. The voltage monitoring insulator detects system voltage, and the light indicator displays system voltage status.


  • Made with Swiss-imported epoxy resin and carefully selected, high-quality components, CVDI Series Voltage Monitoring Insulators are durable and resistant to pollutants and contaminants.
  • Voltage monitoring insulators can be purchased separately.

Conditions for Operation

  • The altitude of installation site should not exceed 1000m.
  • The temperature of surrounding environment should be between -25℃ and +80℃.
  • Regular maintenance is necessary if installed in a highly polluted or contaminating area.



System Voltage (kV)*

Rated Frequency (Hz)

Continuous Voltage (kV)

CVDI-12 Voltage Indicator




50 / 60

2 ~ 17

CVDI-24 Voltage Indicator


17 ~ 30

*For products designed for a different system voltage or for other applications, please contact us.


Connection Diagrams

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  • Tag
  • Voltage Indicators
  • Epoxy Bushings and Insulators