Allen-Bradley 1769-PA2K Installation Instructions Manual page 4

Compact I/O Expansion Power Supplies
Always hard-wire circuits that are installed on the machine for safety reasons directly to the
master control relay. Examples include overtravel limit switches, stop push buttons, and
interlocks. These devices must be wired in series so that when any one device opens, the master
control relay is de-energized, which removes power from the machine.
ATTENTION: Never alter these circuits to defeat their function. Serious injury or machine damage
could result.
Hazardous Location Approval
Only 1769-PB2, 1768-PB2K, 1769-PB4, and 1769-PB4K power supplies.
European Hazardous Location Approval
The following applies to products marked
• Are Equipment Group II, Equipment Category 3, and comply with the Essential Health and Safety Requirements relating to the
design and construction of such equipment given in Annex II to Directive 2014/34/EU. See the EC Declaration of Conformity at
http://www.rockwellautomation.com/products/certification
• The type of protection used is 'Ex nA IIC T4 Gc' according to EN 60079-15.
• Comply to Standards EN 60079-0:2012+A11:2013, EN 60079-15:2010, reference certificate number DEMKO 18 ATEX 2140X.
• Modules are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air or dust mixtures are
unlikely to occur, or are likely to occur only infrequently and for short periods. Such locations correspond to Zone 2 classification
according to ATEX directive 2014/34/EU.
IEC Hazardous Location Approval
The following applies to products with IECEx certification. Such modules:
• Are intended for use in areas in which explosive atmospheres caused by gases, vapors, mists, or air are unlikely to occur, or are
likely to occur only infrequently and for short periods. Such locations correspond to Zone 2 classification to IEC 60079-0.
• The type of protection is 'Ex nA IIC T4 Gc' according to IEC 60079-15.
• Comply to Standards: IEC 60079-0:6th edition, IEC-60079-15:4th Edition, reference IECEx certificate number IECEx UL 20.0078X.
4
, II 3 G. Such modules:
Rockwell Automation Publication 1769-IN028I-EN-P - July 2020
for details.