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Siemens SIMATIC S7-300 SM 321 Digital Input Module

Name: Siemens 6ES7321-1CH80-0AA0
Brand: Siemens
SKU: 6ES7321-1CH80-0AA0
Availability: InStock

Siemens SIMATIC S7-300 SM 321, 16DI, 48-125V DC.

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

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ManufacturerSiemens

Part number6ES7321-1CH80-0AA0

Module Type Digital Input

Series SIMATIC S7-300

Inputs 16 DI

Voltage DC 48 - 125V

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12-month warranty

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16 optically isolated digital inputs Wide input voltage range (48-125V DC) Designed for expanded temperature range For SIMATIC S7-300 PLC Robust industrial design

Product description

The Siemens 6ES7321-1CH80-0AA0 is a SIMATIC S7-300 Digital Input Module (SM 321). It features 16 optically isolated digital inputs rated for DC 48V to 125V. This module is designed for an expanded temperature range, making it suitable for demanding industrial environments.

This module is used in S7-300 automation systems for acquiring discrete signals from field devices such as switches, sensors, and pushbuttons. Its robust isolation and wide voltage input range make it ideal for applications in harsh conditions, including heavy industry, power generation, and outdoor installations.

Stanlo Automation, a veteran-owned surplus parts distributor, provides reliable access to industrial automation components. We offer tested surplus parts like the Siemens 6ES7321-1CH80-0AA0, ensuring you can maintain your automation systems with quality equipment.

Technical specifications

Module Type	Digital Input
Series	SIMATIC S7-300
Inputs	16 DI
Voltage	DC 48 - 125V
Isolation	Optically Isolated
Temp Range	Expanded

Common applications

Heavy industry

Process control

Power generation

Harsh environments

Machine automation

Outdoor installations

Compatible systems

Siemens SIMATIC S7-300 CPU 312 Siemens SIMATIC S7-300 CPU 313 Siemens SIMATIC S7-300 CPU 314 Siemens SIMATIC S7-300 CPU 315 Siemens SIMATIC S7-300 CPU 316 Siemens SIMATIC S7-300 CPU 317

Also known as

Siemens SIMATIC SM321 Siemens S7-300 Input Module 6ES73211CH800AA0

Replaces / compatible with

Replaces or expands I/O capabilities of existing SIMATIC S7-300 systems requiring 48-125V DC digital inputs.

Technical note

Expert tip

The optical isolation provides excellent protection against ground loops and transient voltages, crucial for stable operation in noisy industrial environments.

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Frequently asked questions

What is the operating voltage range for the Siemens 6ES7321-1CH80-0AA0 digital input module?

The Siemens 6ES7321-1CH80-0AA0 SIMATIC S7-300 digital input module accepts a wide input voltage range of 48 to 125 volts DC for its 16 digital inputs.