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Siemens SIMATIC S7-300 8-Channel 120/230V AC Input Module

Siemens SIMATIC S7-300 8-Channel 120/230V AC Digital Input Module.

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ManufacturerSiemens

Part number6ES7321-1FF01-0AA0

Module Type Digital Input SM 321

Channels 8 DI

Voltage 120V/230V AC

Isolation Isolated

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8 isolated digital inputs 120V/230V AC operation Dual voltage support SIMATIC S7-300 compatible Versatile input handling

Product description

The Siemens 6ES7321-1FF01-0AA0 is a SIMATIC S7-300 digital input module featuring 8 isolated digital inputs. This module is designed for dual voltage operation, supporting both 120V AC and 230V AC inputs, and connects via a 20-pole connector.

This module is ideal for applications where input signals can be either 120V or 230V AC, offering flexibility in industrial environments. It's commonly used in machine control, power monitoring, and automation systems with varied AC voltage sources.

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Technical specifications

Module Type	Digital Input SM 321
Channels	8 DI
Voltage	120V/230V AC
Isolation	Isolated
Connector	1x 20-pole
Series	SIMATIC S7-300

Common applications

Machine control

Power monitoring

Industrial automation

Process control

Control panels

Compatible systems

SIMATIC S7-300 PLC Systems

Also known as

Siemens S7-300 Dual AC Input SM 321 8 DI 230V AC 6ES73211FF010AA0

Replaces / compatible with

This Siemens digital input module is designed for the SIMATIC S7-300 platform, supporting flexible 120V/230V AC input signals. It integrates with S7-300 CPUs.

Technical note

Expert tip

When using 230V AC inputs, ensure all safety precautions for high voltage are strictly followed for the 20-pole connector.

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Frequently asked questions

Can the Siemens 6ES7321-1FF01-0AA0 module accept both 120V and 230V AC inputs?

Yes, the Siemens 6ES7321-1FF01-0AA0 module features 8 isolated digital inputs that can handle either 120V AC or 230V AC. This provides flexibility for diverse industrial applications.