Siemens 6ES7120-0AH01-0AA0 Programmable Logic Controller Module

Siemens 6ES7120-0AH01-0AA0 is a TB16SC screw-terminal block designed as a spare part for expanding SIMATIC SC systems with analog and digital SC electronic modules. It is not a standalone PLC module; instead it serves as the expansion interface that connects to respective SC modules within Siemens' legacy SIMATIC control stack. Listed as PM500 discontinued, the product’s end-of-life date is October 1, 2017, reflecting its status as a legacy component and replacement-part option. The unit weighs 0.277 kg and ships with packaging dimensions of 10.60 x 11.90 x 4.70 cm; it bears EAN 4025515057611 and UPC 662643191127, and is explicitly noted as not RoHS-compliant. This TB16SC terminal block traditionally accompanies expansion configurations where screw-type connections are required to interface analog and digital SC electronic modules in Siemens' older automation architectures.