Supply Siemens PLC 6ES7321-1BH10-0AA0 SM321 16-Channel 24VDC Digital Input Expansion Module
We supply 100% original Siemens 6ES7321-1BH10-0AA0 (SM321) for SIMATIC S7-300 PLC. It’s a high-speed 16-channel 24VDC digital input module with galvanic isolation, ideal for fast pulse and sensor signal acquisition. German-made, factory sealed, 12-month official warranty, in stock, global shipping.