XB3 and ZB3, 30mm operators
30mm Push Buttons
30mm Telemecanique 30mm Operators
The XB3 product is no longer available. It used the same contact blocks, light modules, and lenses as the XB2 line. So some parts are still available.
Recommend to replace the complete device with the 9001 Type K (metal) or 9001 Type SK (plastic) line.