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What is the mechanical interlock for LC1F400/4004 and LC1F115/150/1154/1504 contactors?

I need an interlock for (2) LC1F contactors with different amperage ratings.

Product Line:
TeSys F-Line Contactors

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Can not find it in the Digest

To interlock the LC1F400 (3 or 4 pole) and the LC1F115 OR LC1F150 (3 or 4 pole) use part number LA9FJ4F*
This is for vertical mounting only.

*lower contactor must have equal or lower current rating
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