Hazardous location information – Rockwell Automation 1756-CNB ControlLogix ControlNet Bridge Module Installation Instructions User Manual
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Publication 1756-IN571B-EN-P - April 2001
Hazardous Location information
The following information applies when operating this equipment in 
hazardous locations:
Products marked “CL I, DIV 2, GP A, B, C, D” are suitable for use in 
Class I Division 2 Groups A, B, C, D, Hazardous Locations and 
nonhazardous locations only. Each product is supplied with markings 
on the rating nameplate indicating the hazardous location 
temperature code. When combining products within a system, the 
most adverse temperature code (lowest “T” number) may be used to 
help determine the overall temperature code of the system. 
Combinations of equipment in your system are subject to 
investigation by the local Authority Having Jurisdiction at the time of 
installation. 
WARNING
!
EXPLOSION HAZARD
• Do not disconnect equipment unless power
has been removed or the area is known to be 
nonhazardous.
• Do not disconnect connections to this
equipment unless power has been removed 
or the area is known to be nonhazardous. 
Secure any external connections that mate to 
this equipment by using screws, sliding 
latches, threaded connectors, or other means 
provided with this product.
• Substitution of components may impair
suitability for Class I, Division 2.
• If this product contains batteries, they must
only be changed in an area known to be 
nonhazardous.