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Siemens 6AG1321-1CH20-2AA0 SIPLUS S7-300 Digital Input Module 48-125V DC

Siemens SIPLUS S7-300 SM 321 Digital Input Module

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ManufacturerSiemens

Part number6AG1321-1CH20-2AA0

Manufacturer Siemens

Series SIPLUS S7-300 SM 321

Part Number 6AG1321-1CH20-2AA0

Temperature Range -25°C to +70°C

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Conformal Coating Wide Operating Temperature Range 16 Digital Inputs 48-125V DC Operation Railway Compliant Optocoupler Isolation

Product description

The Siemens 6AG1321-1CH20-2AA0 is a SIPLUS S7-300 SM 321 digital input module designed for robust performance in challenging industrial environments, operating from -25°C to +70°C, with conformal coating for enhanced protection.

This module provides 16 isolated digital inputs (DI) for DC voltages ranging from 48V to 125V. It is based on the 6ES7321-1CH20-0AA0 and features a 1x 20-pole front connector. The module is also compliant with EN 50155 T1 Cat 1 Cl A/B for railway applications.

This high-voltage DC input module is suitable for applications in industries like transportation, heavy machinery, and process automation where higher DC input voltages are utilized. Stanlo Automation, a veteran-owned distributor, offers this specialized part for your automation needs.

Technical specifications

Manufacturer	Siemens
Series	SIPLUS S7-300 SM 321
Part Number	6AG1321-1CH20-2AA0
Temperature Range	-25°C to +70°C
Digital Inputs	16 DI
Input Voltage	48-125 V DC
Connector	1x 20-pole
Conformal Coating	Yes
Railway Compliance	EN 50155 T1 Cat 1 Cl A/B

Common applications

Industrial Automation

Transportation

Heavy Machinery

Process Control

Railway Systems

Compatible systems

Compatible with Siemens S7-300 PLC systems

Also known as

SIPLUS S7-300 SM 321 DI 16 DC Siemens DI Module 48-125V

Replaces / compatible with

This SIPLUS SM 321 module is an enhanced version based on the Siemens 6ES7321-1CH20-0AA0, designed for superior environmental resistance and higher DC input voltage handling.

Technical note

Expert tip

Features optocoupler isolation between channels and the backplane bus, and is designed to meet EN 50155 standards for railway applications.

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Frequently asked questions

What is the input voltage range for the Siemens 6AG1321-1CH20-2AA0 digital input module?

The Siemens 6AG1321-1CH20-2AA0 SIPLUS digital input module accepts DC input voltages ranging from 48V to 125V, providing flexibility for various power supply configurations in industrial automation.