We have compiled a list of manufacturers, distributors, product information, reference prices, and rankings for Current transformers.
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Current transformers - Company Ranking(8 companies in total)

Last Updated： Aggregation Period:Feb 25, 2026〜Mar 24, 2026
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Company Name Featured Products
Product Image, Product Name, Price Range overview Application/Performance example
光星計測器（LIGHTSTAR） 光星計測器（LIGHTSTAR） LIGHTSTAR JAPAN　日本法人事務所（大阪）
Busbar current transformer (CT) "KBM-□□" suitable for air-insulated circuit breakers.
Busbar current transformer (CT) "KBM-□□" suitable for air-insulated circuit breakers.

Less than 10,000 yen

 This is a product designed for air circuit breakers (ACB). Common specifications: Secondary current: 5A or 1A Overcurrent strength: 40... This is a current transformer for busbars. It is a product designed to match air circuit breakers (ACB).
Split-type transformer (current transformer CT) 'KBC-□□'
Split-type transformer (current transformer CT) 'KBC-□□'

Less than 10,000 yen

 Common specifications Secondary current: 5A or 1A Overcurrent strength: 40 times Maximum voltage: 1.15kV Dielectric strength: withst... It is a split-type current transformer. It is a product that is popular both domestically and internationally, and we produce it every day.
Transformer for busbars (Current Transformer CT) 'KBM-□□'
Transformer for busbars (Current Transformer CT) 'KBM-□□'

Less than 10,000 yen

 This is a product designed for circuit breakers (CB). Common specifications: Secondary current: 5A or 1A Overcurrent strength: 40 time... This is a transformer for busbars. It is a product designed to match circuit breakers (CB).
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  1. 光星計測器（LIGHTSTAR） 光星計測器（LIGHTSTAR） LIGHTSTAR JAPAN　日本法人事務所（大阪）
    Featured Products
    Busbar current transformer (CT) "KBM-□□" suitable for air-insulated circuit breakers.Busbar current transformer (CT) "KBM-□□" suitable for air-insulated circuit breakers.
    overview
    This is a product designed for air circuit breakers (ACB). Common specifications: Secondary current: 5A or 1A Overcurrent strength: 40...
    Application/Performance example
    This is a current transformer for busbars. It is a product designed to match air circuit breakers (ACB).
    Split-type transformer (current transformer CT) 'KBC-□□'Split-type transformer (current transformer CT) 'KBC-□□'
    overview
    Common specifications Secondary current: 5A or 1A Overcurrent strength: 40 times Maximum voltage: 1.15kV Dielectric strength: withst...
    Application/Performance example
    It is a split-type current transformer. It is a product that is popular both domestically and internationally, and we produce it every day.
    Transformer for busbars (Current Transformer CT) 'KBM-□□'Transformer for busbars (Current Transformer CT) 'KBM-□□'
    overview
    This is a product designed for circuit breakers (CB). Common specifications: Secondary current: 5A or 1A Overcurrent strength: 40 time...
    Application/Performance example
    This is a transformer for busbars. It is a product designed to match circuit breakers (CB).
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