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  6. Transducer (AC Voltage Signal Converter) "KTB"

Transducer (AC Voltage Signal Converter) "KTB"

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KTB-□□□□□□

last updated:Sep 16, 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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Transducer for converting AC voltage ★★★ Equipment for distribution boards, control panels, distribution panels, and panels.

It is a converter that converts AC voltage to DC current/voltage. It can accommodate various auxiliary power supplies and can be configured in terms of average value/rms value. There are three sizes: M, L, and LL. AC Voltage Transducer For inquiries, please contact "lightstar_1979@yahoo.co.jp".

    Substation equipmentPower distribution and control panelsOther measuring instruments
トランスデューサ(交流電圧信号変換器)『KTB』.jpg

Transducer (AC Voltage Signal Converter) "KTB"

トランスデューサ(交流電圧信号変換器)『KTB』.jpg
トランスデューサ(交流電圧信号変換器)『KTB』.jpg
  • Related Link - http://www.lightstar.co.jp/product/view&idx=225

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basic information

General Specifications ● Input Circuit: 1P2W (Lty), 1P3W (LLty), 3P3W (LLty), 3P4W (LLty), 1P2W (Mty) ● Circuit Configuration Method: Average Value, Effective Value ● Grade: Average Value (Class 0.2), Effective Value (Class 0.5) ● Auxiliary Power Supply: AC 110V/220V, AC 90~260V, DC 110V/DC 220V, DC 24V (Single-phase only) ● Operating Ambient Temperature: -10℃~50℃ ● Operating Ambient Humidity: 20~85% ● Insulation Resistance: 10 MΩ or more ● Dielectric Strength: Withstands AC 2 kV for 1 minute ● Lightning Impulse: Voltage: 1.2 μs/50 μs, 5 kV Current: 8 μs/20 μs ● Input: AC Voltage - 0~150V (50/60Hz), 0~300V (50/60Hz) ● Output: DC - 4~20 mA, 0~1 mA, 1~5V, 0~10V ● Dimensions: Width 40× Height 100× Depth 70 mm (M Type), Width 75× Height 120× Depth 70 mm (L Type), Width 150× Height 120× Depth 75 mm (LL Type) ● Weight: 200g (M Type), 500g (L Type), 1140g (LL Type)

Price information

KTB-□□1A1S: 4,200 yen KTB-□□1A2S: 5,400 yen KTB-□□1A2T: 9,000 yen KTB-□□5A1S: 4,200 yen KTB-□□1R1S: 5,400 yen KTB-□□1R2S: 7,200 yen KTB-□□1R2T: 10,800 yen KTB-□□2R2S: 7,200 yen KTB-□□3R2S: 7,200 yen KTB-□□4R2S: 12,000 yen

Price range

P2

Delivery Time

P3

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

Applications/Examples of results

It is a converter that converts AC voltage to DC current/voltage.

Line up(16)

Model number overview
KTB-□□1A1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P2W(LTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 75× Height 120× Depth 70 mm ・Weight: 500g
KTB-□□1A2S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P2W(LTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 75× Height 120× Depth 70 mm ・Weight: 500g
KTB-□□1A2T ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P2W(LTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 2 outputs (single-phase only) ・External dimensions: Width 75× Height 120× Depth 70 mm ・Weight: 500g
KTB-□□2A1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P3W(LLTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□3A1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P3W(LLTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□3A2S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P3W(LLTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□4A1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P4W(LLTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□4A2S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P4W(LLTy) ・Circuit configuration method: Average value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□1R1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P2W(LTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 75× Height 120× Depth 70 mm ・Weight: 500g
KTB-□□1R2S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P2W(LTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 75× Height 120× Depth 70 mm ・Weight: 500g
KTB-□□1R2T ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P2W(LTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 2 outputs (single-phase only) ・External dimensions: Width 75× Height 120× Depth 70 mm ・Weight: 500g
KTB-□□2R1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 1P3W(LLTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□3R1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P3W(LLTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□3R2S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P3W(LLTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□4R1S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P4W(LLTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 110/220V/2 outputs excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g
KTB-□□4R2S ・AC voltage input: 0~150V, 0~300V ・DC output: 4~20㎃, 0~1㎃, 1~5V, 0~10V ・Input circuit: 3P4W(LLTy) ・Circuit configuration method: Effective value ・Auxiliary power supply: AC 90~260V, DC 110V, 220V/RMS excluded ・Number of outputs: 1P 1 output(M, LTy) ・External dimensions: Width 150× Height 120× Depth 75 mm ・Weight: 1140g

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Transducer (AC Voltage Converter) 'KTB--□□□□□□'

Transducer (AC Voltage Converter) 'KTB--□□□□□□'

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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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