Chapter 14, 1797-ps1e flex ex power supply, Installation in zone 1 – Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual
Page 79: Installation in zone 22, Outputs, Chapter
1
Publication 1797-6.5.6 - June 2005
Chapter
14
1797-PS1E FLEX Ex Power Supply
Installation in Zone 1
The 1797-PS1E power supply has a protection factor of IP65. Refer to the
specifications table for the IS module type.
Installation in Zone 22
The housing type of the power supply is applicable for the use in Zone 22. It
corresponds with the category 3D according to RL 94/9 EG and is marked
with a type label accordingly. If the junction box must be opened for
maintenance purposes during operation, the power supply must be free of dust
deposits so that after the opening no dust penetrates inside.
Outputs
When using an intrinsically safe electrical apparatus according to EN50020,
the European directives and regulations must be followed.
The channels in the power supply are electrically connected to each other and
have a common +V line.
30686
1797-PS1E
ATTENTION
The power supply cannot be used in an intrinsically safe
environment after its outputs have been exposed to
non-intrinsically safe signals.
IMPORTANT
You cannot interconnect lines because of the intrinsic
safety requirements.
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