ABB NDCU-33CX 3AUA0000052751 is a discrete I/O expansion module with the following detailed parameters and application areas:
The module has an additional slot that supports heat exchange and can be plugged into various option modules (POMs), including USB, Ethernet, RJ12RS-232, 3PINRS-485, and 3PINRS-232 versions. This design allows users to change the network configuration as needed according to changes in communication requirements. No base or backplane is required, and up to eight I/O modules can be expanded (depending on the model used). In addition, it offers 27 discrete I/O expansion module versions, including 8, 12, and 16-point versions, enabling the system to scale to up to 164 discrete I/O points.
Highly integrated: Each I/O module can be plugged directly into a substation locally to the CPU on the terminal board or distributed by FBP. The CPU can expand up to 10 I/O modules locally (firmware version V1.2 and above), while the distributed sub-station can expand up to 7 I/O modules.
| Input voltage | 220VAC |
| Output voltage | 24VDC |
| Communication interface | RS485, Modbus |
| Operating temperature | -20°C~+70°C |
| Size | 200mm x 150mm x 50mm |
| Weight | 500g |
ABB NDCU-33CX 3AUA0000052751 plays an important role in the field of industrial automation with its flexible scalability, high degree of integration and wide range of application scenarios, providing reliable support for a variety of applications.