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Siemens

Siemens Front Connector with Twisted Ribbon Cable for Compact CPU

Name: Siemens 6ES7921-3AL20-0AA0
Brand: Siemens
SKU: 6ES7921-3AL20-0AA0
Availability: InStock

Siemens front connector for S7-300 Compact CPU with spring terminals.

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

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ManufacturerSiemens

Part number6ES7921-3AL20-0AA0

For CPU 313C, 314C-2PTP, 314C-2DP

Interface X1 Connection

Cable Type Twisted Ribbon Cable

Power Terminals Spring-Type Terminals

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Designed for S7-300 Compact CPUs Twisted Ribbon Cable Connection Spring-Type Power Terminals Secure Wiring Reliable Signal Termination

Product description

The Siemens 6ES7921-3AL20-0AA0 is a front connector specifically designed for Siemens S7-300 Compact CPUs, including models like the 313C, 314C-2PTP, and 314C-2DP. It features a connection for twisted ribbon cable for the X1 interface and utilizes spring-type terminals for power supply connections. This connector facilitates the wiring and termination of I/O signals and power to the CPU module.

This component is crucial for ensuring reliable data transfer and power distribution within the S7-300 PLC system. Its design with spring-type terminals simplifies installation and maintenance, providing secure and vibration-resistant connections essential for industrial automation.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 6ES7921-3AL20-0AA0 front connector. We provide access to essential PLC components to support your industrial control system needs.

Technical specifications

For CPU	313C, 314C-2PTP, 314C-2DP
Interface	X1 Connection
Cable Type	Twisted Ribbon Cable
Power Terminals	Spring-Type Terminals
Series	S7-300 Compact CPU

Common applications

S7-300 PLC Systems

Industrial Control

Automation Engineering

Machine Building

Process Automation

Compatible systems

Siemens SIMATIC S7-300 Compact CPUs (313C, 314C-2PTP, 314C-2DP)

Also known as

Siemens S7-300 Front Connector Siemens PLC Cable Connector SIMATIC CPU 313C Connector

Replaces / compatible with

Direct replacement for the front connector on Siemens S7-300 Compact CPU modules 313C, 314C-2PTP, and 314C-2DP.

Technical note

Expert tip

Ensure the ribbon cable is correctly oriented and fully seated in the 6ES7921-3AL20-0AA0 to prevent signal errors, especially with the X1 interface.

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Frequently asked questions

What type of power terminals does the Siemens 6ES7921-3AL20-0AA0 front connector use?

The Siemens front connector (6ES7921-3AL20-0AA0) for S7-300 Compact CPUs utilizes spring-type terminals for the power supply connections, ensuring a secure and vibration-resistant connection.