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Honeywell · PLC controller
900C31-0020 is a Honeywell PLC controller with Total I/O Up to 4608 with remote I/O; Supply voltage 24 V DC (IEC 61131-2); Enclosure rating IP20 (IEC 60529). 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.
| Electrical | |
| Supply voltage | 24 V DC (IEC 61131-2) |
|---|---|
| I/O and communication | |
| Communication ports | 1 Ethernet port, 10/100 Mbps |
| Total I/O | Up to 4608 with remote I/O |
| Mechanical | |
| Dimensions (H x W x D) | 137 mm x 38.1 mm (5.4 in x 1.5 in) |
| Weight | 350 g |
| 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, cULus |
Values follow the Honeywell PLC controller specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
| Honeywell PLC controller variants | |||
| Catalog number | Total I/O | Supply voltage | |
|---|---|---|---|
| 900C31-0020 (this page) | Up to 4608 with remote I/O | 24 V DC (IEC 61131-2) | |
| 900C31-0021 | Up to 4608 with remote I/O | 24 V DC (IEC 61131-2) | |
| 900C31-0011 | Up to 4608 with remote I/O | 24 V DC (IEC 61131-2) | |
| 900C31024400 | Up to 4608 with remote I/O | 24 V DC (IEC 61131-2) | |
Before selecting an alternative, confirm its dimensions, terminals and installation requirements in the manufacturer documentation.
The 900C31-0020 is the device-level element in a Honeywell PLC controller 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.
Honeywell 900C31-0020 — PLC / CPU module used as the device-level control core in an automation panel, handling logic, timing and communication tasks. The figures below are taken from the specification table on this page for catalog number 900C31-0020; size the surrounding wiring and upstream protection to these published ratings rather than to a generic assumption.
For a discontinued unit, match function and electrical ratings rather than the label alone.
Q.For 900C31-0020, what does the specification table state about operating temperature?
The specification table lists operating temperature = 0...+55 °C (IEC 60068-2-1) for Honeywell 900C31-0020. Compare it with the nameplate of the installed unit before ordering.
Q.Which value is published under certifications for catalog number 900C31-0020?
For 900C31-0020, certifications is given as CE, cULus. Confirm this figure against the unit currently in the panel.
Q.Before ordering 900C31-0020, which supply voltage entry should be checked?
The supply voltage entry quoted above is 24 V DC (IEC 61131-2). Use the value as the reference when sourcing a current-production equivalent.
Q.Can the 900C31-0020 replace the unit currently installed in my panel?
Compare catalog number 900C31-0020 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.
Q.What should I include in an enquiry for 900C31-0020?
Send the full catalog number 900C31-0020, the required quantity and a photo of the nameplate. Stock, lead time and the applicable compliance documents can then be confirmed for Honeywell 900C31-0020.
Standard (US & Canada, tracked courier): delivered in 5–8 business days. In-stock items are processed within 2–4 business days. USD 25 flat rate on orders under $500.00; free on orders of $500.00 and above.
Express (DHL Express / FedEx International): upgraded expedited delivery in 2–4 business days. The Express surcharge is calculated at checkout based on destination and order weight.
Non-Stock / On-Order items ship on request: dispatch time is confirmed before your order — see our Shipping Policy. Shipping charges and available services are displayed at checkout. See the Shipping Policy for details.
Every product is covered by a 12-month seller warranty provided by SHLY-PLC, effective from the date of delivery, against defects in materials and workmanship under normal use.
This warranty does not cover damage from misuse, improper installation, power surges, neglect, unauthorized repair, or normal wear and tear. See our Return Policy for warranty-claim instructions.
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