14
Rockwell Automation Publication 1794-IN104C-EN-P - July 2018
FLEX I/O 220V AC Digital Input and Output Modules
General Specifications
Attribute
1794-IM8
1794-OM8
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
(customer device driven)
8 yellow status indicators
(logic driven)
External AC power supply voltage, nom 240V AC
External AC power supply input
frequency
47...63 Hz
External AC power voltage range
159...264V AC (See
Derating Curves
)
North American temp code
T4
T4A
Keyswitch position
8
Enclosure type rating
None (open-style)
Weight, approx.
100 g (3.53 oz)
85 g (3.00 oz)
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.
Environmental Specifications
Attribute
Value
Operating temperature
IEC 60068-2-1 (Test Ad, operating cold),
IEC 60068-2-2 (Test Bd, operating dry heat),
IEC 60068-2-14 (Test Nb, operating thermal shock):
0…55 °C (32…131 °F)
Storage temperature
IEC 60068-2-1 (Test Ab, unpackaged nonoperating cold),
IEC 60068-2-2 (Test Bb, unpackaged nonoperating dry heat),
IEC 60068-2-14 (Test Na, unpackaged nonoperating thermal shock):
-40…85 °C (-40…185 °F)
Temperature, surrounding air,
max
55 °C (131 °F)
