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ABB · AC31 (series 90)
07KR51 is an ABB industrial component with Rated current Ie 2231A; Supply voltage 24 V DC (IEC 61131-2); Enclosure rating IP20 (IEC 60529). 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.
| Electrical | |
| Rated current Ie | 2231A |
|---|---|
| Supply voltage | 24 V DC (IEC 61131-2) |
| I/O and communication | |
| Communication ports | Modbus, PROFINET, Ethernet |
| Mechanical | |
| Weight | 31G |
| Mounting | DIN rail / panel |
| Enclosure rating | IP20 (IEC 60529) |
| Environment and compliance | |
| Operating temperature | 0...+55 °C (IEC 60068-2-1) |
| Certifications | CE, UL, CSA, CCC |
Values follow the ABB AC31 (series 90) specification for this catalog number; parameters not confirmed for this variant are omitted rather than estimated.
Lifecycle: discontinued by the manufacturer. Current-production replacement: AC500. Cross-reference by function and ratings, not by label alone.
| ABB AC31 (series 90) variants | |||
| Catalog number | Rated current Ie | Mounting | |
|---|---|---|---|
| 07KR51 (this page) | 2231A | DIN rail / panel | |
| 07KR51-A3.6 | 2231A | DIN rail / panel | |
| 07KT51-U3.6 | 2231A | DIN rail / panel | |
| 07KT95 | 2231A | DIN rail / panel | |
All variants share the same AC31 (series 90) footprint and terminal layout; the columns above show where they differ. Selecting a different catalog number changes the electrical interface, not the mounting.
The 07KR51 is the device-level element in an ABB 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 2231A 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.
Q.What supply does this device require?
It requires 24 V DC (IEC 61131-2). Size the supply source to the same rating shown in the Specifications table.
Q.What are the key electrical ratings?
The confirmed ratings include 2231A and CE, UL, CSA, CCC marking. Cross-check them against the installed unit's nameplate.
Q.How is this device mounted?
It mounts by DIN rail / panel. Confirm the cutout or rail before ordering a like-for-like spare.
Q.What is the operating temperature range?
The confirmed operating range is 0...+55 °C (IEC 60068-2-1). Panels running beyond it need derated sizing.
Q.Is this catalog number still in production, and what replaces it?
It is discontinued by the manufacturer; the current-production replacement is AC500. Cross-reference by function and ratings, not by label alone.
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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