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Siemens 6ES7921-3AF20-0AA0 Front Connector Module S7-300

Name: Siemens 6ES7921-3AF20-0AA0
Brand: Siemens
SKU: 6ES7921-3AF20-0AA0
Availability: InStock

Siemens S7-300 front connector module with ribbon cable connection.

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

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ManufacturerSiemens

Part number6ES7921-3AF20-0AA0

For PLC System S7-300

Connection Type Flat Ribbon Cable

Power Spring Terminals

Pins 40

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12-month warranty

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Veteran-owned

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Ribbon Cable Connection Spring Terminal Power Designed for S7-300 Analog Modules Reliable Signal Transfer Easy Wiring and Installation

Product description

The Siemens 6ES7921-3AF20-0AA0 is a front connector module designed for use with the S7-300 PLC system. It features a flat ribbon cable connection for analog modules and provides power via spring terminals, simplifying wiring and installation.

This connector is essential for connecting analog input/output modules in Siemens S7-300 automation systems. It ensures reliable signal transmission and efficient power distribution to the connected modules, commonly used in process control and monitoring applications.

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Technical specifications

For PLC System	S7-300
Connection Type	Flat Ribbon Cable
Power	Spring Terminals
Pins	40
For Module Type	Analog Modules
Manufacturer	Siemens

Common applications

Process Control

Industrial Monitoring

Data Acquisition

S7-300 PLC Systems

Automation Panels

Machine Control

Compatible systems

Siemens SIMATIC S7-300 PLC system, specifically for analog input and output modules.

Also known as

Siemens S7-300 Front Connector 6ES7921-3AF20-0AA0 Connector Siemens Analog Module Connector

Replaces / compatible with

Replaces or is compatible with front connectors for Siemens S7-300 analog modules requiring a ribbon cable connection. Ensure pinout and terminal compatibility.

Technical note

Expert tip

Ensure the ribbon cable is securely seated in both the front connector and the analog module to prevent intermittent connections.

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Frequently asked questions

What type of modules does the Siemens 6ES7921-3AF20-0AA0 front connector module support?

The Siemens 6ES7921-3AF20-0AA0 front connector module is specifically designed for analog modules within the Siemens S7-300 PLC system. It uses a flat ribbon cable for data connection and spring terminals for power.