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Do we have to change the contactor after reaching the mechanical durability limits ?

It is recommended for safety  and reliability for operation  to change the contactor after reaching the mechanical durability cycles as its is also indication to the life time of the contactor as the mechanical mechanism of the contactor will be end of life

in case of contacts weldings and problems which may occurs  we can change the contacts (contacts spare parts) 

Auxiliaries for TESYS D and TESYS F are attached .

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