Allen-Bradley ControlLogix 1756-ENET Manual Del Usuario página 22

2–10 Módulo de interface de comunicación ControlLogix Ethernet
Publicación 1756 6.5.1ES - Agosto de 1997
Understand CSA Hazardous Location Approval
CSA Hazardous Location Approval
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 CSA certified Allen Bradley industrial control products.
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 PLC control system, the product with the highest
temperature rating determines the overall temperature code rating of a PLC 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.
ATTENTION: 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 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 an Allen Bradley product 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.
PLC is a registered trademark of Allen Bradley Company, Inc.
CSA logo is a registered trademark of the Canadian Standards Association.
Look for temperature code
rating here