Allen-Bradley · Flex I/O module
1794-IF8IH is an Allen-Bradley I/O module with Supply voltage 24 V DC (IEC 61131-2); Enclosure rating IP20 (IEC 60529); Communication ports EtherNet/IP, DeviceNet. It is used in packaging machines, conveyor transfer cells, small process skids where the installed unit is matched to the original catalog number and a compact, documented part is required.
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Supply voltage24 V DC (IEC 61131-2)
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Enclosure ratingIP20 (IEC 60529)
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Mounting35 mm DIN rail (IEC 60715)
Specifications
| Electrical |
| Supply voltage |
24 V DC (IEC 61131-2) |
| Mechanical |
| Mounting |
35 mm DIN rail (IEC 60715) |
| Enclosure rating |
IP20 (IEC 60529) |
| Environment and compliance |
| Operating temperature |
0...+55 °C (IEC 60068-2-1) |
| Certifications |
CE, UL, cULus |
Values follow the Allen-Bradley Flex I/O module specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| Allen-Bradley Flex I/O module variants |
| Catalog number |
Supply voltage |
|
1794-IF8IH (this page) |
24 V DC (IEC 61131-2) |
| 1794-IF8IHNFXT |
24 V DC (IEC 61131-2) |
| 1794-IF2XOF2I |
24 V DC (IEC 61131-2) |
| 1794-IF4IXT |
24 V DC (IEC 61131-2) |
All variants share the same Flex I/O module footprint and terminal layout; the columns above show where they differ. Selecting a different catalog number changes the electrical interface, not the mounting.
Where it sits in the control system
The 1794-IF8IH is the device-level element in an Allen-Bradley I/O module installation. It receives the field signals and control supply listed above — 24 V DC (IEC 61131-2) — and switches or conditions the load within the the rated ratings shown in the Specifications table. Wiring and protective devices are sized to those same numbers, not to a generic assumption.
Typical installations place it in packaging machines, conveyor transfer cells, small process skids, where the unit is matched to the original catalog number and the enclosure provides 35 mm DIN rail (IEC 60715) support. Record the catalog number and revision from the nameplate of the installed unit before specifying a like-for-like spare.
Selection notes for Allen-Bradley 1794-IF8IH
Allen-Bradley 1794-IF8IH — Industrial automation component supplied as a like-for-like replacement, selected by catalog number and published ratings. The figures below are taken from the specification table on this page for catalog number 1794-IF8IH; confirm the installed unit's part number and revision so the replacement matches both electrically and mechanically.
- Mounting: 35 mm DIN rail (IEC 60715) — Record it with the other nameplate data when sourcing a replacement.
- Enclosure rating: IP20 (IEC 60529) — Confirm the revision of the installed unit before a like-for-like replacement.
- Operating temperature: 0...+55 °C (IEC 60068-2-1) — Use it as the reference when cross-checking a current-production equivalent.
- Certifications: CE, UL, cULus — Verify it in the project documentation before confirming the order.
Datasheets and compliance documents are available on request; quote the full catalog number when enquiring.
Common questions about 1794-IF8IH
Q.Which value is published under certifications for catalog number 1794-IF8IH?
For 1794-IF8IH, certifications is given as CE, UL, cULus. Compare it with the nameplate of the installed unit before ordering.
Q.Before ordering 1794-IF8IH, which operating temperature entry should be checked?
The operating temperature entry quoted above is 0...+55 °C (IEC 60068-2-1). Confirm this figure against the unit currently in the panel.
Q.Where can I find the supply voltage data for 1794-IF8IH?
It is listed in the specification table for Allen-Bradley 1794-IF8IH as 24 V DC (IEC 61131-2). Use the value as the reference when sourcing a current-production equivalent.
Q.How do I confirm compatibility of 1794-IF8IH before ordering?
Match the catalog number 1794-IF8IH and the specification values listed above against the installed unit, then confirm the firmware or hardware revision where a revision-sensitive part is involved.
Q.Can the 1794-IF8IH replace the unit currently installed in my panel?
Compare catalog number 1794-IF8IH and the ratings above with the nameplate of the installed device. A current-production equivalent is selected by function and electrical rating, not by the label alone.