SIEMENS 6ES5946-3UA21 Central Processing Unit for SIMATIC S5
The SIEMENS 6ES5946-3UA21 Central Processing Unit (CPU) is designed specifically for use with the SIMATIC S5 series of programmable logic controllers (PLCs). This robust CPU unit offers reliable performance in industrial environments, providing seamless control over automated systems and processes.
Manufacturer:SIEMENS
Model Number:6ES5946-3UA21
CPU Type:Central Processing Unit
System Compatibility:SIMATIC S5
Operating Voltage:24V DC
Input Power:350W
Memory Capacity:1MB RAM, 2MB ROM
Communication Ports:2 x RS422/RS485 ports
Weight:Approximately 2 kg
Dimensions:180mm x 115mm x 75mm (LxWxH)
This advanced Central Processing Unit from Siemens is specifically designed for use in SIMATIC S5-135U/140 CPU systems. It offers superior performance and reliability in demanding industrial environments.
It supports up to 1.5 MB memory extension, allowing for greater flexibility and adaptability in various applications. Its robust design ensures long-term operation under tough conditions.
The unit operates on 24 V DC voltage, consuming just 5 watts of power, making it energy efficient. With dimensions of 180 x 110 x 90 mm and weighing only 1.5 kg, it is compact yet durable.
It comes with multiple safety certifications including CE, UL, and RoHS compliance, ensuring it meets international safety standards.
Installation is straightforward, thanks to its intuitive design and clear instructions. Whether you’re upgrading an existing system or starting from scratch, this CPU is a reliable and efficient choice.











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