Understand csa hazardous location approval – Rockwell Automation 1747-PCIL Chassis Interface Module for 1746 Local I/O User Manual

Page 12

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Chassis Interface Module for 1746 Local I/O

Publication 1747-5.32–April 1998

Understand CSA Hazardous Location Approval

CSA logo is a registered trademark of the Canadian Standards Association.

CSA certifies products for general use as well as for use in hazardous locations. Actual CSA
certification is indicated by the product label as shown below, and not by statements in any
user documentation.

Example of the CSA certification product label:

To comply with CSA certification for use in hazardous locations, the following information
becomes a part of the product literature for this CSA-certified industrial control product.

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or non-hazardous locations
only.

The products having the appropriate CSA markings (that is, Class I, Division 2, Groups A, B, C, D) are
certified for use in other equipment where the suitability of combination (that is, application or use) is
determined by the CSA or the local inspection office having jurisdiction.

Important:

Due to the modular nature of a programmable control system, the product with the highest
temperature rating determines the overall temperature code rating of a programmable
control system in a Class I, Division 2, location. The temperature code rating is marked
on the product label as shown.

Temperature code rating:

The following warnings apply to products having CSA certification for use in hazardous locations.

WARNING: Explosion hazard--

Substitution of components may impair suitability for Class I, Division 2.

Do not replace components unless power has been switched off or the area is
known to be non-hazardous.

Do not disconnect equipment unless power has been switched off or the area
is known to be non-hazardous.

Do not disconnect connectors unless power has been switched off or the area
is known to be non-hazardous. Secure any user-supplied connectors that mate
to external circuits on this equipment by using screws, sliding latches, threaded
connectors, or other means such that any connection can withstand a 15 Newton
(3.4 lb.) separating force applied for a minimum of one minute.

Batteries must only be changed in an area known to be non-hazardous.

CL I, DIV 2
GP A,B,C,D

TEMP

CL I, DIV 2

GP A,B,C,D

TEMP

Look for temperature
code rating here.

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