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Siemens 6ES7921-4AA00-0AA0 S7-400 Front Connector Module

Name: Siemens 6ES7921-4AA00-0AA0
Brand: Siemens
SKU: 6ES7921-4AA00-0AA0
Availability: InStock

Siemens S7-400 Front Connector Module

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

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ManufacturerSiemens

Part number6ES7921-4AA00-0AA0

Part Number 6ES7921-4AA00-0AA0

Manufacturer Siemens

Series S7-400

Product Type Front Connector Module

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12-month warranty

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Designed for S7-400 PLCs Facilitates field wiring termination Ensures reliable connections Genuine Siemens component

Product description

The Siemens 6ES7921-4AA00-0AA0 is a front connector module specifically designed for the Siemens S7-400 series of programmable logic controllers (PLCs). This module facilitates the connection of field wiring to the CPU or I/O modules.

This connector is essential for terminating field wiring in S7-400 systems, allowing for reliable communication between the PLC and external devices such as sensors, actuators, and network components. It is widely used in manufacturing automation, process control, and building automation systems.

Stanlo Automation, a veteran-owned surplus distributor, provides the Siemens 6ES7921-4AA00-0AA0 to help you maintain and expand your S7-400 PLC installations with genuine components.

Technical specifications

Part Number	6ES7921-4AA00-0AA0
Manufacturer	Siemens
Series	S7-400
Product Type	Front Connector Module

Common applications

Industrial automation

PLC system wiring

Process control

Machine control

S7-400 PLC installations

Compatible systems

Siemens SIMATIC S7-400 series PLC modules

Also known as

Siemens S7-400 Front Connector 6ES7921-4AA00-0AA0 Terminal Module

Replaces / compatible with

This front connector module is designed for direct replacement or expansion within Siemens S7-400 PLC systems.

Technical note

Expert tip

Ensure the correct pinout and wiring scheme is followed as per the S7-400 system manual for proper functionality.

What happens next?

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Frequently asked questions

What is the purpose of the Siemens 6ES7921-4AA00-0AA0?

The Siemens 6ES7921-4AA00-0AA0 is a front connector module for S7-400 PLCs. Its purpose is to provide a clean and organized termination point for field wiring to the PLC's CPU or I/O modules.