The Siemens 6ES7921-3AA20-0AA0 is a front connector module designed for digital 32 I/O modules of the S7-300 series. This robust and reliable component ensures seamless connectivity within your PLC system. The module features a flat ribbon cable connection and power supply via spring terminals, offering a practical and efficient solution for your automation needs. With a total of 40 poles on the front connector and 4 plug contacts for the electrical connection, this module provides ample connection points for your system. It's designed for direct mounting, making installation straightforward. The module can handle an operating voltage of up to 60V DC and a current of 1A per plug-in contact. It's built to withstand operating temperatures ranging from 0 to 60°C, ensuring reliable performance in various environments. The module is black in colour and has a net weight of 0.081 kg. Please note, this product is subject to change without notice.