Allen-Bradley FLEX Ex 1797-OB4D, Installation Instructions Manual, Page: 21 / 28

FLEX Ex 24V dc Non-Isolated Source 4 Output Module 21
Publication
1797-5.6 - December 2003
Table 2
IMPORTANT
A terminal base may or may not have an I/O module
installed.
Terminals V
t
(V) I
t
(mA) Groups C
a
(
µ
F) L
a
(
µ
H)
Male Bus
Connector
5.8 400 A-G 3.0 3.0
Hazardous (Classified) Location
Class I, Zones 0, 1, & 2 Groups IIC, IIB, IIA
Class I, Div. 1 & 2 Groups A, B, C, D
Class II, Div. 1 & 2 Groups E, F, G
Class III, Div. 1 & 2
Hazardous (Classified) Location
Class I, Zones 1 & 2 Groups IIC, IIB, IIA
Class I, Div. 1 & 2 Groups A, B, C, D
To any intrinsically safe
device or associated
apparatus with Entity
Concept
!
parameters of
V
oc
< 5.8V; I
sc
< 400mA.
T
o any intrinsically safe
device or associated
apparatus with Entity
Concept
!
parameters of
V
oc
< 9.5V; I
sc
< 1A.
To any IS device with Entity
Concept
!
parameters of
(V
max
, I
max
, C
i
, L
i
) appropriate
for connection to associated
apparatus with Entity Concept
parameters listed in Table 2.
1797-OB4D
16
Shield Connection Only
50
51
35
34
V
max
=5.8V
I
max
=400mA
C
i
=1350nF
L
i
=negligible
V
max
=9.5V
I
max
=1A
C
i
=negligible
L
i
=negligible
Male Bus
Connector
" #
$
$
$
$
33
40
41
42
43
44
45
0 (+)
%
Female Bus
Connector
Any Simple Apparatus
&
or I.S.
device with Entity Concept
parameters
!
(V
max
, I
max
, C
i
, L
i
)
appropriate for connection to
associated apparatus with Entity
Concept parameters listed in
Table 1.
1 (-)
ch0
ch1
ch2
ch3
4 (+)
5 (-)
8 (+)
9 (-)
12 (+)
13 (-)
42059
AB Parts