Datasheet

www.apem-idec.eu
D-064
APEM
Switches &
Pilot Lights
Control Boxes
Emergency
Stop Switches
Enabling
Switches
Safety Products
Explosion Proof
Terminal Blocks
Relays & Sockets
Circuit
Protectors
Power Supplies
LED Illumination
Controllers
Operator
Interfaces
Sensors
AUTO-ID
Emergency Stop Switches
X6
XA
XW
XN
SEMI
XA/XW Series Emergency Stop Switches Switchguard
Emergency Stop Guard for Machinery (Protective Shroud)
In the past, use of a switchguard (term: protective shroud) on devices such as a machine tool or food processing machines was not permitted under ISO/IEC.
However, in the latest revision, the use of a protective shroud is permitted with conditions. This is because the "Prevention of unintended actuation of an
emergency stop device" was added as a safety requirement and the denition of a protective shroud is as below.
ISO13850:2015 3.7 protective shroud (protective shroud)
mechanincal measure provided to reduce the possibility of unintended actuation of an emergency stop
device.
Productive shroud can be used under the following conditions:
ISO13850:2015 4.5 Prevention of unintended acuation of an emergency stop device
The emergency stop device shall be designed to avoid unintended actuation.
The actuation of the emergency stop device shall not be impaired.
To prevent unintended actuation of the emergency stop device some precautions can be taken, e.g.:
-
locate the emergency stop device away from foreseeable heavily trafcked areas,
-
select the type of emergency stop device,
-
select appropriate size or shape of the emergency stop device, or
-
mount the emergency stop device within a recessed surface of the surrounding control panel.
The use of a protective shroud around the emergency stop device should be avoided, except when necessary
to prevent unintended actuation and other measures are not practicable.
For emergency stop devices intended to be acutated by the hand the measures against unintended actuation
shall not impede or hinder actuation with the palm of the hand, from any foreseeable position of the machine
operator and others who could need to actuate them.
For details on protective shroud, see D - 055.
If the safety requirements of ISO15380:2015 4.3.2 or 4.5 is satised, the switchguard can be used safely by combining IDEC’s
switchguard and emergency stop switch, which is approved by TÜV Rheinland in ISO13850:2015 to be used as protective shroud
with emergency stop switch.