RDCU-12C Genuine ABB Control Board

Part Number: 3AUA0000036521D

Product Overview

In ACS800 Motor Drive applications analogue and digital I/O channels are used for different functions such as control, monitoring and measurement purposes (e.g. motor temperature). To extend the I/O functionality of your ACS800 Drive the RDCU-12C provides additional analogue and digital I/O connections, relay outputs and more.

Please note that application software is not included, before the board can be used customers will need to obtain and install the required software.

Key Technical Features

Original ABB Control Board – Factory Standard
High-speed drive control processing
Stable real-time motor regulation
Multiple I/O and internal communication interfaces
Designed for ABB drive system compatibility
Industrial-grade PCB with long service life
Supports continuous operation in harsh environments

Technical Specifications

Parameter	Description
Product Type	Drive Control Unit
Model	RDCU-12C
ABB Part Number	3AUA0000036521D
Manufacturer	ABB
Function	Main control & logic processing board
Control Type	Digital drive control
Mounting	Internal drive installation
Communication	Internal ABB drive bus
Operating Environment	Industrial automation
Condition	Genuine New / Original
Application	ABB frequency drives & motor control systems

Functional Description

The RDCU-12C functions as the central control brain of the ABB drive system. It performs:

Motor control algorithm execution
Speed, torque, and direction regulation
Signal processing from sensors and I/O modules
Drive communication coordination
System diagnostics and fault management

By maintaining precise timing and stable signal output, the RDCU-12C guarantees accurate motor behavior, reduced vibration, and consistent production performance.

Typical Applications

ABB AC Drives
Industrial Frequency Inverters
Motor Control Cabinets
Automation Production Lines
Conveying Systems
Pump & Fan Control Systems
OEM Drive Repair & Replacement

Advantages for Maintenance & Replacement

Direct replacement for original RDCU-12C modules
No programming required after installation (drive-dependent)
Restores full drive functionality quickly
Reduces downtime and maintenance costs
Ideal for spare parts inventory

Why Choose This RDCU-12C ABB Control Board

✔ Genuine ABB original product
✔ Exact part number match: 3AUA0000036521D
✔ High compatibility with ABB drive platforms
✔ Stable long-term industrial operation
✔ Suitable for global industrial automation projects

RDCU-12C Genuine ABB Control Board 3AUA0000036521D