Current transformers Product List and Ranking from 4 Manufacturers, Suppliers and Companies

Last Updated: Aggregation Period:Oct 15, 2025~Nov 11, 2025
This ranking is based on the number of page views on our site.

Current transformers Manufacturer, Suppliers and Company Rankings

Last Updated: Aggregation Period:Oct 15, 2025~Nov 11, 2025
This ranking is based on the number of page views on our site.

  1. ヒラヰ電計機 東京営業所 Tokyo//Facility Design Office
  2. 光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪) South Korea//Electrical equipment construction business
  3. null/null
  4. 4 ウェーブクレスト Saitama//Educational and Research Institutions
  5. 4 美和電気 本社 Kanagawa//Building materials, supplies and fixtures manufacturers

Current transformers Product ranking

Last Updated: Aggregation Period:Oct 15, 2025~Nov 11, 2025
This ranking is based on the number of page views on our site.

  1. High Voltage Current Transformer ECT-S150A/150A1 (150 times/1 second) ヒラヰ電計機 東京営業所
  2. Low Pressure Round Window Type Current Transformer CTC-NR Series ヒラヰ電計機 東京営業所
  3. Directly Mountable Current Transformer (CT) 'KBK-□' 光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪)
  4. SGR power line zero-phase current transformer (ZCT) 'KGC-□S' 光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪)
  5. SGR Busbar Zero Sequence Current Transformer (ZCT) 'KGB-□S' 光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪)

Current transformers Product List

1~15 item / All 20 items

Displayed results

Smart Current Transformer

Smart current transformer adopting LoRaWAN wireless technology

● Self-power operation ● Excellent accuracy with a maximum frequency of 3.3kHz ● Real-time cumulative ampere-hour calculation ● Non-contact installation ● Irregular current condition alert ● External wire temperature sensor ● Removable and cable-free design ● LoRaWAN wireless technology

  • Other measuring instruments

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Current transformer for cubicle-type high-voltage receiving equipment

Rated withstand current 12.5kA/0.125s and 12.5kA/0.25s current transformer JIS C 4620 (Appendix)

Current Transformers for Cubicle-Type High Voltage Receiving Equipment ECT-S12.5KA Series Common Specifications ■ Compliance Standards: JIS C 4620 (Appendix) ■ Rated Current: 10A/5A, 15A/5A, 20A/5A, 25A/5A, 30A/5A, 40A/5A, 50A/5A 75A/5A, 100A/5A, 120A/5A, 150A/5A, 200A/5A ■ Rated Load: 10VA or 25VA or 40VA ■ Rated Overcurrent Constant: n>10 ■ Rated Frequency: 50Hz/60Hz ■ Accuracy Class: 1.0/1PS ■ Rated Short-Circuit Current: (1) ECT-S12.5KA-A Series = 12.5kA/0.125s or 12.5kA/0.16s common (2) ECT-S12.5KA-B Series = 12.5kA/0.25s

  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

High Voltage Current Transformer ECT-S150A/150A1 (150 times/1 second)

Hirai Electric Meter Standard Product: Current withstand 150 times/1 second, overcurrent constant n>10

This is a current transformer for circuits with a maximum voltage of up to 7.2kV/6.9kV. If you require an overcurrent intensity of 150 times/1 second and an overcurrent constant of n>10, you can use this series. It is primarily manufactured in accordance with JIS C 1731-1/JEC-1201, but we can accommodate special specifications such as multiple taps or tertiary windings upon request. Production location: Made in Japan (Kyoto)

  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Low Pressure Round Window Type Current Transformer CTC-NR Series

This is a design-registered product for low-voltage circuit round window-shaped current transformers.

Starting from a minimum of 60A, the lineup can reduce the work of winding electric wires. It uses a heat-resistant ABS resin case for the exterior, making it lightweight and easy to handle. This series is primarily manufactured in accordance with JIS C 1731-1, but products can also be made according to overseas standards such as IEC upon request. Production locations: Made in China / Korea / Japan (Kyoto) Design registration number: 1402960

  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Three-phase transformer for bus bar (current transformer) 'KBF-□□'

You can match any type of busbar. It is a product with good performance and price. Instruments for distribution boards and panels.

KBF is our company's pride in three-phase CT. In fact, it is the most popular model among the types of CT we offer. It has three square windows of the same basic size, and the size of the CT has diversified to match the size of the circuit breaker. Our company has been developing three-phase CTs for the past ten years, which has led to the popularity of three-phase CTs in the domestic market as well. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Three-phase current transformer for power lines (transformer CT) 'KBD-□□'

It can be matched with any type of wire. It is a product with good performance and price. ★★★ Instruments for distribution boards, control panels, distribution panels, and panels.

KBD is a three-phase CT that our company takes pride in. It has three holes of the same basic size, and the size of the CT has diversified to match the size of the electrical wires. Our company has been developing three-phase CTs for the past ten years, and as a result of our influence, three-phase CTs have become popular in the domestic market. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Transformer for Busbar (Current Transformer CT) "KBM-□□" Suitable for Air-insulated Circuit Breakers

Any type of circuit breaker for ugly bars can be matched. It is a product with good performance and price. Instruments for distribution boards, control panels, distribution panels, and panels.

KBM is our busbar-type CT, particularly suitable for air circuit breakers (ACB). The range of primary current is very broad, from 100 to 12,000, allowing for versatile use. The KBM series has diversified the size of the CT to match the size of the circuit breaker. It offers more varieties than busbar CTs for circuit breakers, making it a versatile product that can be used in various situations. By installing three units, it can also function like a three-phase CT. For the KBM-03 and KBM-25 models, production will continue until this year, and it is scheduled to be discontinued next year. However, new products KBM-13 and KBM-16 have been released, so the total number of varieties remains at nine. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Current transformer for power supply and demand measurement (transformer CT) 'KBK-08'

Current transformers installed with bolts! Please use them first. A new world will open up! Meters for distribution boards, control panels, distribution panels, and panels.

The KBK-08 is slightly different from our other CTs. While other CTs pass the wires or busbars directly through the product, this product is mounted with bolts. Additionally, the KBK-08 is a qualified item for bidding with Korea Electric Power (standard items). For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Directly Mountable Current Transformer (CT) 'KBK-□'

Directly installable current transformer! Please use it first. A new world will open up! Instruments for distribution boards, control panels, distribution panels, and panels.

The KBK-□ is our company's direct mounting current transformer. This is not a type that goes through wires or busbars, but a product designed for direct mounting. There are three shapes available, and five different sizes. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Zero-phase transformer for busbar (ZCT) "KGB-□"

ZCT for busbars used with leakage current alarms. A product with good performance and price. ★★★ Instruments for distribution boards, control panels, sub-distribution boards, and panels.

It is designed to be installed on power lines under 600V, allowing the primary side of the current transformer to carry the total circuit current, with the vector sum of the currents output on the secondary side. The output current value is measured at the input of the leakage alarm receiver. Features: - Designed with dimensions categorized by the type of applicable circuit breakers, optimizing space utilization. - The structure is designed so that the plastic surface does not touch the busbar after assembly, minimizing thermal deformation during busbar overheating. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

SGR Busbar Zero Sequence Current Transformer (ZCT) 'KGB-□S'

ZCT for busbars used with leakage current alarms. A product with good performance and price. ★★★ Instruments for distribution boards, control panels, sub-distribution boards, and panels.

This device is designed to be installed on power lines below 600V, allowing the primary side of the current transformer to carry the total circuit current, with the vector sum of the currents output on the secondary side. The output current value is measured at the input of the leakage alarm receiver. Features: - Designed with dimensions categorized by the type of applicable circuit breaker, optimizing space utilization. - Constructed to ensure that the plastic surface does not contact the busbar after assembly, minimizing thermal deformation during busbar overheating. This product is a ZCT for SGR. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

  • Other measuring instruments
  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

High voltage winding type current transformer 500 times/1 second & 800 times/1 second

Hirai Electric Meter Standard Product: Current Resistance 500 times/1 second & 800 times/1 second

This is a current transformer for circuits with a maximum voltage of up to 7.2kV/6.9kV. For overcurrent intensity of 500 times/1 second and overcurrent constant n>10, you can use model ECT-1000A1. For overcurrent intensity of 800 times/1 second and overcurrent constant n>5, you can use model ECT-1000A. The basic design complies with JIS C 1731-1/JEC-1201, but we can accommodate special specifications such as multiple taps or tertiary windings upon request. Place of production: Made in Japan (Kyoto).

  • Substation equipment
  • Power distribution and control panels

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Immersion-proof current transformer (split type) 'QZ-8A'

Primary current 300A to 1000A, secondary current 5A compatible! Waterproof and split-type current transformer, zero-sequence current transformer.

The "QZ-8A" from Miwa Electric is a waterproof and split-type current transformer and zero-sequence current transformer (CT and ZCT). It is suitable for circuit voltages ranging from 22kV to 154kV, with primary currents from 300A to 1000A and a secondary current of 5A. 【Features】 ■ Waterproof and split-type current transformer and zero-sequence current transformer ■ Applicable circuit voltage: 22kV to 154kV ■ Primary current: 300A to 1000A ■ Secondary current: 5A *For more details, please refer to the PDF document or feel free to contact us.

  • others

Added to bookmarks

Bookmarks list

Bookmark has been removed

Bookmarks list

You can't add any more bookmarks

By registering as a member, you can increase the number of bookmarks you can save and organize them with labels.

Free membership registration

Search Keywords Related to Current transformers