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Siemens SIMATIC S7-300 16-Channel 120/230V AC Input Module

Siemens SIMATIC S7-300 16-Channel 120/230V AC Digital Input Module.

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ManufacturerSiemens

Part number6ES7321-1FH00-0AA0

Module Type Digital Input SM 321

Channels 16 DI

Voltage 120V/230V AC

Isolation Isolated

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12-month warranty

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Veteran-owned

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16 isolated digital inputs 120V/230V AC operation Dual voltage capability SIMATIC S7-300 compatible Versatile AC input

Product description

The Siemens 6ES7321-1FH00-0AA0 is a SIMATIC S7-300 digital input module providing 16 isolated digital inputs. This module supports dual voltage operation, accepting either 120V AC or 230V AC signals, and connects via a 20-pole connector.

This module is designed for flexibility in industrial settings, allowing the monitoring of a wide range of AC voltage signals. It is suitable for machine automation, power system monitoring, and applications with varying AC input requirements.

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Technical specifications

Module Type	Digital Input SM 321
Channels	16 DI
Voltage	120V/230V AC
Isolation	Isolated
Connector	1x 20-pole
Series	SIMATIC S7-300

Common applications

Machine automation

Power monitoring

Industrial control

Process automation

Control panels

Compatible systems

SIMATIC S7-300 PLC Systems

Also known as

Siemens S7-300 16 DI AC Module SM 321 230V AC Input 6ES73211FH000AA0

Replaces / compatible with

This Siemens digital input module is designed for the SIMATIC S7-300 platform, offering robust performance for 120V/230V AC input signals. It seamlessly integrates with S7-300 controllers.

Technical note

Expert tip

Ensure correct wiring for the intended AC voltage (120V or 230V) to the 20-pole connector to prevent damage to the module or connected devices.

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Frequently asked questions

What is the voltage range for the Siemens 6ES7321-1FH00-0AA0 digital input module?

The Siemens 6ES7321-1FH00-0AA0 module supports 16 isolated digital inputs for both 120V AC and 230V AC signals. This dual voltage capability makes it versatile for various industrial applications.