Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual - Manual (Page 81)

1 Publication 1797-6.5.6 - June 2005
Chapter
15
1797-PS2E2 FLEX Ex Power Supply
Installation in Zone 1 The 1797-PS2E2 power supply has a protection factor of IP54. Refer to the
specifications table for the IS module type.
Installation in Zone 22 The housing type of the power supply is applicable for 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-PS2E2
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.