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

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

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KBD-□□

last updated:Aug 12, 2025

光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪)
光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪)
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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".

    Substation equipmentPower distribution and control panelsOther measuring instruments
KBD.png

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

KBD.png
KBD.png
  • Related Link - http://www.lightstar.co.jp/product/list&paging=3&s…

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basic information

This is a product designed to match circuit breakers (CB). Common specifications: Secondary current: 5A or 1A Overcurrent strength: 40 times Maximum voltage: 1.15kV Withstand voltage: 4.0kV for 1 minute Frequency: 50/60Hz

Price information

KBD-12: 2,550 yen KBD-12S: 3,380 yen KBD-22: 3,000 yen KBD-42: 3,600 yen KBD-62: 4,800 yen KBD-13: 3,300 yen KBD-13S: 4,500 yen KBD-21: 3,600 yen KBD-23: 4,050 yen KBD-43: 4,800 yen KBD-63: 6,300 yen

Price range

P1

Delivery Time

P3

※There is an agency in Yokohama, Japan, that has stock available.

Applications/Examples of results

It is a current transformer for electric wires. It is a product that is popular both domestically and internationally, and is produced every day.

Detailed information

  • KBD제품분류표.JPG

    This is the primary current specification for the product. Please check it.

  • KBD제품분류표2.JPG

    This is the primary current specification for the product. Please check it.

  • KBD치수

    This is the outline drawing and dimensions. Please check.

Line up(11)

Model number overview
KBD-12 Circuit 3P3W(2CT) Applicable CB 100AF Primary current 150~200A(5VA) Class 1.0 Frequency 50/60Hz
KBD-12S Circuit 3P3W(2CT) Applicable CB 100AF Primary current 100~150A(5VA) 200A(15VA) Class 1.0 Frequency 50/60Hz
KBD-22 Circuit 3P3W(2CT) Applicable CB 250AF Primary current 100~300A(5VA) Class 1.0 Frequency 50/60Hz
KBD-42 Circuit 3P3W(2CT) Applicable CB 400AF Primary current 200~300A(5VA) 400~500A(15VA) Class 1.0 Frequency 50/60Hz
KBD-62 Circuit 3P3W(2CT) Applicable CB 600AF Primary current 200~250A(5VA) 300~1200A(15VA) Class 1.0 Frequency 50/60Hz
KBD-13 Circuit 3P4W(3CT) Applicable CB 100AF Primary current 150~200A(5VA) Class 1.0 Frequency 50/60Hz
KBD-13S Circuit 3P4W(2CT) Applicable CB 100AF Primary current 100~150A(5VA) 200A(15VA) Class 1.0 Frequency 50/60Hz
KBD-21 Circuit 3P4W(2CT) Applicable CB 250AF Primary current 100~200A(5VA) Class 1.0 Frequency 50/60Hz
KBD-23 Circuit 3P4W(2CT) Applicable CB 250AF Primary current 150~300A(5VA) Class 1.0 Frequency 50/60Hz
KBD-43 Circuit 3P4W(2CT) Applicable CB 400AF Primary current 200~300A(5VA) 400~500A(15VA) Class 1.0 Frequency 50/60Hz
KBD-63 Circuit 3P4W(2CT) Applicable CB 600AF Primary current 200~250A(5VA) 300~1200A(15VA) Class 1.0 Frequency 50/60Hz

catalog(1)

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Three-phase round window through-type current transformer (circuit breaker custom-made) 'KBD-□□'

Three-phase round window through-type current transformer (circuit breaker custom-made) 'KBD-□□'

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Company information

光星計測器(LIGHTSTAR)

光星計測器(LIGHTSTAR) LIGHTSTAR JAPAN 日本法人事務所(大阪)

Electrical equipment construction business

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Our company was founded in 1979 and has grown into a manufacturer of products that can observe electrical data through early analog instruments, digital meters, wireless, and the internet. This development is driven by the strong will of our employees to walk alongside our customers. Additionally, we are committed to thorough customer-centric operations while actively investing in technological development at our affiliated research institute. We strive to meet our customers' diverse needs through more differentiated services. In our case, we have become well-known in South Korea for our measuring instruments (analog, digital meters, and CT, VT). We have been exporting to Japanese companies for over a decade, and we have registered with Ipros to introduce our products to more Japanese customers. In 2022, we registered as a corporation in Tokyo and have since relocated our corporate office to Osaka as "LIGHTSTAR JAPAN." We also have Japanese staff on-site, and we look forward to your support.

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