6ES7321-1FF10-0AA0 New Original Siemens S7-300 Plc Programming Controller module

2. Key Selling Points

1. 8-Channel 120V AC Digital Input – Direct AC Signal Connection:Provides 8 independent 120V AC digital inputs, allowing direct connection to field devices such as contactors, pushbuttons, and relay contacts without external signal conversion.

2. Designed for High-Voltage AC Applications – Safe & Reliable:Rated for 120V AC input, ideal for industrial control systems in North America and other regions using 120V AC control circuits, with built-in surge and noise protection.

3. Galvanic Isolation for Strong Noise Immunity:Features 500V AC isolation between input channels and backplane bus, protecting the CPU from electrical disturbances and enhancing system reliability.

4. LED Indicators for Real-Time Channel Status:Each input has a green LED to show active status, enabling quick visual diagnostics and on-site troubleshooting during commissioning and maintenance.

5. Wide Input Voltage Range for High Compatibility:Operates reliably within 90–132V AC, accommodating voltage fluctuations commonly found in industrial environments.