Home › Manufacturers › Siemens › SIMATIC S7-300 › 6ES7321-1EH00-0AA0

Siemens

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

Name: Siemens 6ES7321-1EH00-0AA0
Brand: Siemens
SKU: 6ES7321-1EH00-0AA0
Availability: InStock

Siemens SIMATIC S7-300 Digital Input Module with 16 optically isolated 120V AC inputs.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number6ES7321-1EH00-0AA0

Module Type Digital Input (DI)

Series SIMATIC S7-300

Input Channels 16

Voltage 120V AC

Get a price for 6ES7321-1EH00-0AA0

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

16 Digital Inputs 120V AC Input Voltage Optically Isolated SIMATIC S7-300 Series Compatibility High Reliability

Product description

The Siemens 6ES7321-1EH00-0AA0 is a SIMATIC S7-300 series digital input module (SM 321) featuring 16 optically isolated inputs for 120V AC signals. It utilizes a 20-pin connector for easy integration into automation systems.

This module is ideal for applications requiring reliable digital input processing in various industrial environments, including manufacturing, process control, and building automation. Its robust design ensures dependable performance in demanding conditions.

As a veteran-owned surplus parts distributor, Stanlo Automation offers the Siemens 6ES7321-1EH00-0AA0, providing a cost-effective solution for your automation needs. Trust us for quality surplus components and exceptional customer service.

Technical specifications

Module Type	Digital Input (DI)
Series	SIMATIC S7-300
Input Channels	16
Voltage	120V AC
Isolation	Optically Isolated
Connector	20-pin

Common applications

Industrial Automation

Process Control

Manufacturing Plants

Building Management Systems

Machine Control

Compatible systems

Siemens SIMATIC S7-300 PLC Systems

Also known as

Siemens SM 321 Input Module S7-300 DI Module 6ES73211EH000AA0

Replaces / compatible with

This module is a direct replacement for older Siemens S7-300 digital input modules with similar specifications. Compatible with various S7-300 PLCs.

Technical note

Expert tip

Ensure proper wiring and grounding for the 120V AC inputs to maintain optical isolation and prevent signal interference.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What is the voltage rating for the Siemens 6ES7321-1EH00-0AA0 digital input module?

The Siemens 6ES7321-1EH00-0AA0 digital input module is designed to accept 120V AC signals. It features 16 optically isolated inputs for reliable data acquisition in industrial environments.