Can we use additional NO or NC (ZBE101 or ZBE102) Block with XB4BG21EX or other Atex switches, push buttons ?

Actually Atex pushbuttons like XB4...EX are an ATEX certified product, the certification is done for the whole product (i.e. the complete unit including the contacts)

According to ATEX directive, the complete product has to be certified & tested according to special rules & then it is marked if it complies to ATEX standards

Actually, we do not have special reference for ATEX pushbuttons contacts as spare part (i.e. no ATEX marking special for the contacts), However, For ATEX, XB4 or XAW products, the contact block is the same as in standard one of XB4 (ZBE10*), only the head that is marked ATEX

So, if the customer requirement is to replace ZBE10* contact block in an existing XB4..EX with a new one (exactly same contact as the initial one existing), then this solution is valid
But if the customer request is to add additional contact ZBE10* to XB4..EX pushbutton, then this is not an ATEX certified solution as it is not tested

Released for: Schneider Electric United Arab Emirates