Siemens 6ES7 321-1BH02-0AA0 Simatic S7-300 Digital Input Module 16-Pt

Siemens SIMATIC S7‑300 6ES7 321-1BH02-0AA0 is a digital input module with 16 electrically isolated 24 VDC inputs, designed for reliable signal acquisition from field devices in industrial automation systems using SIMATIC S7‑300 PLCs. Product Type: Digital Input Module Manufacturer: Siemens Manufacturer Series: SIMATIC S7‑300 Manufacturer Part Number: 6ES7 321-1BH02-0AA0 Country of Manufacture: Germany Input Type: Digital Number of Digital Inputs: 16 Input Voltage: 24 VDC Input Voltage Range (Signal “1”): Approx. 13 to 30 VDC Input Voltage Range (Signal “0”): Approx. -3 to +5 VDC Input Current: Approx. 7 mA per channel Input Delay Time (0 to 1): Typical 3 ms Input Delay Time (1 to 0): Typical 3 ms Electrical Isolation: Inputs electrically isolated from backplane Input Grouping: 16 inputs in 1 group Connector Type: 1 × 20‑pole front connector Front Connector Included: No Status Indication: LED indicator per input channel Compatibility: SIMATIC S7‑300 CPUs Mounting Type: DIN rail mounting in S7‑300 rack Module Format: Standard S7‑300 module Typical Applications: Sensors, pushbuttons, limit switches, and ON/OFF industrial signals Please review pictures carefully and let us know if you have any questions!