18
Rockwell Automation Publication 1794-IN102D-EN-P - July 2018
FLEX I/O AC Digital Input Modules
Nominal input impedance
10 k<Symbol>W
Nominal input current
12 mA @ 120V AC
Isolation voltage
120V (continuous), Basic Insulation Type
Type tested @ 1264V AC for 60 s, between field side and system
No isolation between individual channels
Input filter time
See
Input Filter Time
table
Flexbus current
20 mA
Power dissipation, max
6.4 W @ 132V AC
Thermal dissipation, max
21.8 BTU/hr @ 132V AC
(1)
AC inputs compatible with proximity switches with leakage ratings of I
leak
< 2.5 mA and I
on
minimum = 5 mA
(2)
Auxiliary terminal strips are required when using the 1794-TBN.
General Specifications
Attribute
1794-IA8, 1794-IA8I
1794-IA16
Terminal base screw torque
Determined by installed terminal base
Dimensions, approx. (H x W x D)
94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.)
Indicators (field side indication)
8 yellow status indicators
16 yellow status indicators
External AC power supply voltage, nom 120V AC
External AC power voltage range
65...132V AC
74...132V AC
North American temperature code
T4A
T4
Keyswitch position
8
Enclosure type rating
None (open-style)
Wire size
Determined by installed terminal base
Wiring category
(1)
2 – on signal ports
(1)
Use this Conductor Category information for planning conductor routing as described in the appropriate System Level
Installation Manual. Also refer to Industrial Automation Wiring and Grounding Guidelines, publication
1770-4.1
, for
more information.
Specifications – 1794-IA16
Attribute
Value