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Do TeSys Deca & TeSys K contactors have mirror contacts? Which ones are those?

Yes, if those contactors have built in or using add on auxiliary contact blocks, in the following circumstances:

TeSys K contactors:

Contactors		Additional blocks
*LCK0601 to LCK1601*	The 21-22 NC auxiliary contact is a mirror contact.	LA1KN	All the NC contacts of the additional blocks are mirror contacts.
*LPK0601 to LPK1601*	The 21-22 NC auxiliary contact is a mirror contact.
*LCK0610 to LCK1610*	There is no mirror contact. (a mirror contact can only be a NC contact)
*LPK0610 to LPK1610*	There is no mirror contact. (a mirror contact can only be a NC contact)
*LCK..004 LCK..008*	Not applicable as there are no auxiliary contacts
*LPK..004 LPK..008*	Not applicable as there are no auxiliary contacts

TeSys Deca contactors:

Contactors		Additional blocks
LC1D09 to LC1D95	The 21-22 NC auxiliary contact is a mirror contact.	LADN LAD8N	All the NC contacts of the additional blocks are mirror contacts. The contacts of these auxiliary blocks are not mirror contacts, even when it is a NC contact.

LC1D115 and LC1D150	The 21-22 NC auxiliary contact of the factory mounted lateral block is a mirror contact.

Please note: Even if the NC contacts of the front auxiliary blocks are mirror contacts, we recommend to use the NC contact of the base product. By being integrated to the base product, it can't be removed and offers the maximum of safety.

LC1D09

A mirror auxiliary contact is a NC auxiliary contact which reflects the state of the NO main contact. It means that if a main contact remains closed (welded contact for example), the mirror contact cannot close. The mirror contacts are used in safety applications, particularly with the Harmony XPS Safety Modules. The notion of mirror contacts concerns power contactors, IEC60947-4-1 standard.