Technical specifications 
  11.10 Connection box compact interfaces 
Mobile Panels 2nd Generation 
Operating Instructions, 09/2018, A5E33876626-AC 
247 
The figure below shows the wiring of the enabling button in the connection box compact. 
 
FAQs Mobile Panels 2nd Generation 
(https://support.industry.siemens.com/cs/ww/en/ps/14746/faq
)