Allen-Bradley · ControlLogix PLC platform
1756-DHRIOK is an Allen-Bradley industrial component with Supply voltage 24 V DC (IEC 61131-2); Enclosure rating IP20 (IEC 60529); Operating temperature 0...+55 °C (IEC 60068-2-1). It is used in control panels, machine builds, spare-part replacements 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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Operating temperature0...+55 °C (IEC 60068-2-1)
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MountingDIN rail / panel
Specifications
| Electrical |
| Supply voltage |
24 V DC (IEC 61131-2) |
| Mechanical |
| Mounting |
DIN rail / panel |
| 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 ControlLogix PLC platform specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Model comparison in the same family
| Allen-Bradley ControlLogix PLC platform variants |
| Catalog number |
Mounting |
|
1756-DHRIOK (this page) |
DIN rail / panel |
| 1756-DNB |
DIN rail / panel |
| 1756-DNBK |
DIN rail / panel |
| 1756-A10 |
DIN rail / panel |
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
Where it sits in the control system
The 1756-DHRIOK is the device-level element in an Allen-Bradley industrial component 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 control panels, machine builds, spare-part replacements, where the unit is matched to the original catalog number and the enclosure provides DIN rail / panel 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 1756-DHRIOK
Allen-Bradley 1756-DHRIOK — 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 1756-DHRIOK; record the nameplate data of the unit being replaced before selecting an equivalent.
- Enclosure rating: IP20 (IEC 60529) — Check this value against the nameplate of the installed unit before ordering.
- Operating temperature: 0...+55 °C (IEC 60068-2-1) — Match it to the existing panel and upstream protection.
- Certifications: CE, UL, cULus — Record it with the other nameplate data when sourcing a replacement.
- Supply voltage: 24 V DC (IEC 61131-2) — Confirm the revision of the installed unit before a like-for-like replacement.
Available from stock with datasheet, certificates and a quotation on request.
Common questions about 1756-DHRIOK
Q.Which value is published under enclosure rating for catalog number 1756-DHRIOK?
For 1756-DHRIOK, enclosure rating is given as IP20 (IEC 60529). Compare it with the nameplate of the installed unit before ordering.
Q.Before ordering 1756-DHRIOK, which supply voltage entry should be checked?
The supply voltage entry quoted above is 24 V DC (IEC 61131-2). Confirm this figure against the unit currently in the panel.
Q.Where can I find the operating temperature data for 1756-DHRIOK?
It is listed in the specification table for Allen-Bradley 1756-DHRIOK as 0...+55 °C (IEC 60068-2-1). Use the value as the reference when sourcing a current-production equivalent.
Q.How do I confirm compatibility of 1756-DHRIOK before ordering?
Match the catalog number 1756-DHRIOK 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 1756-DHRIOK replace the unit currently installed in my panel?
Compare catalog number 1756-DHRIOK 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.