https://www.conrad.com/en/p/wago-2000-5311-1101-951-proximity-switch-terminal-7-mm-pull-spring-grey-50-pc-s-1489598.html
Top WAGO Selection | Order easily now: WAGO 2000-5311/1101-951 Proximity switch terminal 7 mm Pull spring Grey 50 pc(s) | Fast delivery | Reasonable prices
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https://www.semtech.com/products/circuit-protection/esd-protection/uclamp3601p
The uClamp3601P is a high-surge TVS optimized for protection of sensitive digital sensors used in proximity switches and industrial control applications.
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https://www.webstaurantstore.com/ary-vacmaster-979355-replacement-proximity-switch/120979355.html
This ARY VacMaster 979355 replacement proximity switch is a direct replacement for the one that came with your unit. Use it to replace a worn out or broken...
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https://www.machinedesign.com/news/products/article/21826573/compact-proximity-switch
R12575 proximity switch provides noncontact position sensing in small spaces
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