Rockwell Automation Allen-Bradley 6181, User Manual, Page: 24 / 91

2–10 Installation
Publication 6181-6.0
Specific configurations of the 6181 Computer are certified for Class I,
Division 2, Groups A, B, C, D, T4A temperature code, hazardous areas.
When installing the 6181 Computer in a hazardous location, note the
following safety considerations:
Installation Wiring
See the nameplate label on the computer for certifications on hazardous
locations.
ATTENTION: In Class I, Div 2 hazardous locations, the
6181 Industrial Computer must be wired per the National
Electric Code and/or Canadian Electric Code as it applies
to hazardous locations.
Connecting and Disconnecting Equipment
When installing the 6181 Computer, note the following safety
considerations:
ATTENTION: EXPLOSION HAZARD! Do not
connect or disconnect equipment while circuit is live
unless area is known to be non-hazardous.
Note:
Do not connect or disconnect 6181 Computer connections
in the presence of possible hazardous materials. Making or
breaking these connections may cause a spark.
Peripheral Devices
Peripheral devices attached to the 6181 Computer should not be operated
in the presence of possible hazardous materials, unless that specific
device is rated for Class I, Div 2 environments. Example devices are
external keyboard, external mouse products, and external removable
media drives.
Connecting Equipment in
Hazardous Locations