Product code: N/A
ABB | 07KR51 220VDC | Advant Controller 31 PLC Basic Unit
¥99,999.00 Original price was: ¥99,999.00.¥1,588.00Current price is: ¥1,588.00.
This image and price are not for reference. If you need to inquire, please contact me!
🌍Country of origin: USA France Germany Estonia Norway UK
⌚Delivery date: in stock
🛠After-sales service: brand new with one year warranty
⚙️ Product Category: Module/Controller/Server/Motor/Touch Screen
🕰Warranty: 12 months/365 days
☎️ Please contact me: 15359029662 Ms. Amy Sun
📎Chinese official website: www.dcsplcabb.com
📩Email: geabbamy@gmail.com
💬Whatsapp: +86 15359029662
If you have any products that you cannot find, you can consult anytime.
Detailed content
The ABB 07KR51 is a basic PLC/controller unit from the Advant Controller 31 (AC31) Series 50 family. ABB documentation identifies the 07KR51 in two power-supply versions: 24 VDC and 120/230 VAC. The documentation does not identify a 220 VDC version; therefore, if your unit is marked “220VDC,” the nameplate and complete ordering number should be checked before installation.
The 07KR51 provides 8 digital inputs and 6 relay outputs. Its integrated inputs are designed for 24 VDC signals and support PNP and NPN input types. The AC31 Series 50 platform also supports CS31/Modbus-related communication functions and high-speed counter applications.
Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | ABB |
| Model | 07KR51 |
| Series | Advant Controller 31 (AC31) Series 50 |
| Product Name | PLC Basic Unit / Controller |
| Digital Inputs | 8 × 24 VDC |
| Digital Outputs | 6 × Relay |
| Input Type | PNP / NPN |
| Standard Input Voltage | 24 VDC |
| Documented Power Supply | 24 VDC or 120/230 VAC |
| Dimensions | Approx. 120 × 93 × 84 mm |
| Weight | Approx. 0.4–0.8 kg depending on version |
| Product Status | Legacy / discontinued AC31 platform |
Important: A 220 VDC supply should not be assumed compatible with the standard 07KR51. ABB’s technical documentation lists 120/230 VAC for the high-voltage version, not 220 VDC.
Common Questions & Answers
Q: What is ABB 07KR51?
A: It is an Advant Controller 31 Series 50 PLC basic unit with integrated digital I/O.
Q: Does 07KR51 support 220 VDC power?
A: The ABB technical documentation reviewed here does not list 220 VDC as a supply option. It specifies 24 VDC or 120/230 VAC depending on the version.
Q: How many I/O points are integrated?
A: The standard 07KR51 configuration has 8 digital inputs and 6 relay outputs.
Q: What voltage do the digital inputs use?
A: The integrated digital inputs use 24 VDC, with a nominal input signal range corresponding to the AC31 specifications.
Q: What should I verify before purchasing a 220VDC-marked unit?
A: Check the complete ABB ordering number, nameplate supply-voltage marking, hardware revision, and terminal configuration. In particular, distinguish a 120/230 VAC 07KR51 from a 24 VDC version before applying power.


















