User Manual

3SU10 device range
4.2 Overview
SIRIUS ACT 3SU1 pushbuttons and signaling devices
System Manual, 02/2015, A5E03457306020A/RS-AB/002
85
4.2.2.15
Safety relays
EMERGENCY STOP mushroom pushbuttons
EMERGENCY STOP mushroom pushbuttons are devices for actuating contact modules,
and they are used in conjunction with a safety relay to bring a machine / plant to a safe state.
The EMERGENCY STOP mushroom pushbuttons are equipped with tamper protection
(trigger action). The EMERGENCY STOP mushroom pushbutton does not latch without
generating an EMERGENCY STOP signal. The EMERGENCY STOP signal is maintained
until the EMERGENCY STOP device is reset (unlatched).
All SIRIUS ACT EMERGENCY STOP mushroom pushbuttons comply with
DIN EN ISO 13850.
These pushbuttons are operated by pressure applied by the whole palm of the hand.
EMERGENCY STOP mushroom pushbuttons are available with actuators in diameter 30
mm, 40 mm or 60 mm.
EMERGENCY STOP mushroom pushbuttons are available in different variants according to
the following features:
● Collar and front ring material
● Colors (special variants)
● Switching function: latching
● Illumination
● Rotate to unlatch
● Pull to unlatch
● Key-operated release (manipulation-proof)
For further information refer to Chapter "Installation (Page 89)". Please also note the
information (on equipping) in Chapter "3SU14 contact modules and LED modules
(Page 133)".