Rockwell Automation 1797-OE8 FLEX Ex Analog Modules User Manual - Manual (Page 86)

Publication 1797-6.5.1 - May 2005
A-6 Specifications
Table 2
The entity concept allows interconnection of intrinsically safe apparatus
with associated apparatus not specifically examined in combination as a system
when the approved values of V
oc
and I
sc
or V
t
and I
t
of the associated apparatus
are less than or equal to V
max
and I
max
of the intrinsically safe apparatus and the
approved values of C
a
and L
a
of the associated apparatus are greater than C
i
+
C
cable
and L
i
+ L
cable
respectively for the intrinsically safe apparatus.
Simple apparatus is defined as a device which neither generates nor stores
more than 1.2V, 0.1A, 20µJ, or 25mW.
Wiring methods must be in accordance with the National Electric Code,
ANSI/NFPA 70, Article 504 and 505 or the Canadian Electric Code CSA
C22.1, Part 1, Appendix F. For additional information refer to ANSI/ISA
RP12.6.
This module, 1797-IE8 or -IE8NF, must be used with terminal base
1797-TB3 or 1797-TB3S.
Terminals 3, 7, 11, 15, 20, 24, 28, 32, 36-39, and 46-49 shall not be
connected.
WARNING: Substitution of components may impair intrinsic safety.
AVERTISSEMENT: La substitution de composant peut compromettre la
securite intrinseque.
Terminals V
t
(V) I
t
(mA) Groups C
a
(
µF)
L
a
(
µH)
Male Bus
Connector
5.8 400 A-G 3.0 3.0