The RAFIX 22 FS+ emergency stop buttons and the compact emergency stop buttons correspond to IEC 60 947 and VDE 0113 Part 1. Thanks to a forcibly actuated mechanical motion sequence, they are dupe-proof in accordance with DIN EN ISO 13850. In order to prevent unintentional actuation, a tactile feedback must be overcome. The button locks into the pressed position. The design of the actuator protects the emergency stop button from interlocking. This means that an initiated emergency stop procedure cannot be interrupted by jamming objects. Only use with the emergency stop switching element. A USB feed-throughs for mounting holes measuring 22.3 mm and suitable for use with the RAFIX 22 FS and RAFIX 22 QR actuator range. The USB feed-through guarantees a stable installation of an easily-accessible USB slot in the front panels of the control units and IPCs. Items that can be inserted into this slot include service keyboards or USB sticks in order to perform software updates. Commercially available USB cables of various lengths with Type B plugs can be used for the connection on the back side. The slot is protected by a sealing cap and this cap ensures the IP65 degree of protection. The feed-through is simply installed by inserting it through the front of the assembly hole and then using a threaded ring on the rear side to fix it into place. The mounting depth is 27.7 mm. The USB feed-through can be visually tailored to the individual customer design thanks to the free choice of the front ring color.