split core current transformer ct clamp QNCTK1-16 50/5 100/5 150/5 200/5 AC current sensor split current transducer 100A 5A 200A

split core current transformer ct clamp QNCTK1-16 50/5 100/5 150/5 200/5 AC current sensor split current transducer 100A 5A 200A

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