Siemens Modules 6ES7321-1FF01-0AA0

The Siemens 6ES7321-1FF01-0AA0 module is an SM 321 digital input module for the SIMATIC S7-300 automation system, designed to read 120 V/230 V AC signals. 

Technical Specification:

• Module Type: Isolated digital input module SM 321.
• PLC System: Designed for use with the SIMATIC S7-300 controllers.
• Number of Inputs: Features 8 digital inputs (DI).
• Rated Input Voltage: 120 V / 230 V AC.
• Power Loss: Typical power dissipation of the module is 4.9 W.
• Dimensions (W x H x D): Approximately 40 x 125 x 120 mm.
• Weight: Approximately 240 g. 

This module is suitable for use with switches and 2-/3-/4-wire AC proximity switches.