Siemens SIRIUS ACT 3SU1 - Page 180

3SU14 modules
8.1 Overview
SIRIUS ACT 3SU1 pushbuttons and signaling devices
180 System Manual, 08/2018, A5E03457306020A/RS-AK/010
Rotate-to-unlatch EMERGENCY STOP mushroom pushbutton
Max. 5 conducting paths permissible if:
● Max. one conducting path is an NO (normally open) contact
Max. 4 conducting paths permissible if:
● More than 2 conducting paths are NO (normally open) contacts
● At least one conducting path is an NC (normally closed) contact
Exception: When the 1NC1MC contact module is used, 2x 1NC1MC + 1NC is possible in the
maximum configuration (2x 1NC1MC + 1NO is not possible).
If an illuminable EMERGENCY STOP mushroom pushbutton (3SU10.1-1GB20-0AA0,
3SU10.1-1HB20-0AA0, 3SU10.1-1JB20-0AA0) is used, the center mounting position (3/6) on
the holder must not be fitted with a contact module.
Pull-to-unlatch
EMERGENCY
STOP
mushroom pushbutton
(3SU10.0-1HA20-0AA0)
Max. 4 conducting paths permissible if:
● At least one conducting path is an NC (normally closed) contact
Exception:
When the 1NC1MC contact module is used, 2x 1NC1MC + 1NC is possible in the
maximum configuration. A placement of 2x 1NC1MC + 1NO is
not
possible.
Example: Equipping with switching function with max. 5x NC contacts
5 x 1NC
1 x 1NC and 2 x 2NC