5.2 Conditions of Safe Use for
Installation in Hazardous Locations
The following information applies to products bearing
the UL marking for Hazardous areas and the ATEX
marking for Zone 2 explosive atmospheres:
• Suitable for use in Class I Division 2 Groups A, B, C,
D; Class 2 Division 2 Groups F, G; Class 3 Division 1
and Division 2.
• Suitable for Group II, Category 3, Gas Groups IIC,
Dust Group IIIC (applicable only to the
IC755CSW07CDACA, IC755CSS10CDACA,
IC755CSS12CDBCA, and IC755CSS15CDACA Display
units):
1. The equipment shall only be used in an area of at
least pollution degree 2, as defined in IEC 60664-1.
Note: Pollution degree 2 can be achieved when the
installation is in a controlled environment with suitably
controlled condensation or airborne pollution.
2. The equipment shall be installed in an enclosure
that provides a minimum ingress protection of IP
54 in accordance with IEC 60079-0.
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