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4 in stock
This listing is for a USED Siemens 6ES7 321‑1BH02‑0AA0 SIMATIC S7‑300 digital input module. This module provides 16 digital 24 VDC inputs and is designed for use in Siemens SIMATIC S7‑300 PLC systems. It is commonly used in industrial automation and machine control applications to monitor sensors, switches, and other discrete field signals.
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