Rockwell Automation 1797-CEC FLEX Ex Bus Isolator and Flexbus Connector - Manual (Page 20)

20 FLEX Ex Bus Isolator and Flexbus Connector
Publication 1797-5.13 - June 2010
Specifications
Table 1 1797-BIC Flex Ex Bus Isolator
Attribute Value
I/O module capacity 8 FLEX Ex modules (1)
Indicators Power - green when power is applied
Isolation path 
Flexbus to Flexbus

Flexbus slave side

to power supply

Galvanic to DIN EN 60079-11

Galvanic to DIN EN 60079-11
Power consumption 18…32V dc @ 0.15 A
Power source failure

Max input

U
m
= 253V ac
Power dissipation 2.1 W
Thermal dissipation 7.2 BTU/hr
IS module type [Ex ib] IIC
Conductor wire size 4 mm 2 (12 gauge) stranded max 
1.2 mm (3/64 in.) insulation max
Weight Approx. 200 g
Environmental conditions
Operational temperature -20…70 °C (-4…158° F)
Storage temperature -40…85 °C (-40…185 °F)
Relative humidity 5…95% noncondensing
Shock operating Tested 30 g peak acceleration, 11 (±1) ms pulse width
nonoperating Tested 30 g peak acceleration, 11 (±1) ms pulse width
Vibration Tested 5 g @ 10…500 Hz per IEC 68-2-6
Output (intrinsically safe) 
(16 pin male flexbus

connector) 
CENELEC
U
o
< 5.75V dc 
I
o
< 400 mA 
P
o
< 2.05 W

L
o
< 100
H
C
o
< 39
F
Output (intrinsically safe)

(16 pin male flexbus 
connector)

FM and cULus
V
t
< 5.75V dc

I
t
< 398.25 mA

C
a
< 39.67 F
L
a
< 210 H