Schneider INS, NSX, CVS auxiliary contact, circuit breaker status OF/SD/SDE/SDV, 1 changeover contact type
This contact fits almost every Schneider part. Please see datasheet below for reference.
https://download.schneider-electric.com/files?p_enDocType=Instruction+sheet&p_File_Name=NNZ4314501-02.pdf&p_Doc_Ref=NNZ4314501