2.3 Installation in Hazardous Locations
The LD 810HSE Ex is suitable for use and installation in areas with potentially explosive
atmosphere in accordance to both the Division model (North America) and the Zone
model (Europe and IEC countries) of hazardous locations.
Danger of explosion!
If energized conductors are plugged to or unplugged from the LD 810HSE Ex in
potentially explosive atmosphere, this may result in an explosion. Thus, do not connect
or disconnect energized conductors!
This manual does not supersede the applicable national regulations, standards or
directives. Thus, follow these regulations, standards or directives.
2.3.1 General Requirements
If the notes stated in this document are not observed or in case of inappropriate
handling of the device, our liability is waived. In addition, the warranty on devices and
spare parts does no longer apply.
The following general requirements must be observed when installing the LD 810HSE Ex
in a hazardous location:
• The details of this document must be observed along with the conditions for use
and the applicable details stated on the marking and type labels of each
LD 810HSE Ex.
• Any selection and operation of the device must be done as per the technical rules.
• Adequate precautions must be taken to prevent unintended actuation or impairment
of I/O devices.
• Connectors must not be connected or disconnected when the area is known to be
hazardous. This can be life threatening in a potentially explosive atmosphere. Open
or not securely closed sockets shall not be energized in the Ex atmosphere.
• Ensure that the installed equipment comply with the types of protection applicable
to the corresponding zones.
• All connected electrical equipment must be suitable for the respective intended use.
• The operator must ensure protection against lightning in compliance with the locally
applicable regulations.
• Electrostatic aspects must be considered when mounting the Linking Device.
Electrostatic charges have to be prevented.
2PAA114135-610 25
2 Hardware Installation
2.3 Installation in Hazardous Locations
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