Looking for Current Detector LE-00 and Voltage Detector LE-R2 (NANA Electronics Jap)

[jeck]

Hello Friends,
We are looking for some obsolete Current Detectors (or equivalent): LE-00 and Voltage Detector (or equivalent) LE-R2 (both manufactured by NANA Electronics Japan),
Used in Fanuc AC spindle drive A06B-6052-H0004, on circuit board A16B-1100-0091.
Does someone know how to find or what another kind replace with?
Thanks previously for advice.

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