User Manual
Accessories   
11.5 Accessories for enclosures 
  SIRIUS ACT 3SU1 pushbuttons and signaling devices 
258  System Manual, 02/2015, A5E03457306020A/RS-AB/002 
Enclosure cover monitoring
Enclosure cover monitoring is fitted at the intermediate position of the command points. The 
plunger is screwed onto the enclosure cover. The module attachment is snapped into the 
intermediate position on the enclosure base and fitted with 1 NO (normally-open) contact 
module. The entire circuit is routed via this contact module. When the enclosure has been 
correctly screwed together, the circuit closes and the controlled device can be operated. 
Please note that the enclosure cover monitoring cannot be used with the raised enclosures 
with one command point (3SU18.1-1AA00-1AA1). 
Description
Material
Article number
Enclosure cover monitoring 
(module with extension plunger) 
Plastic  3SU1900-0HM10-0AA0 










