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Siemens 6ES7921-3AH20-1AA0 SIMATIC S7-300 Front Connector (40 Pole)

Name: Siemens 6ES7921-3AH20-1AA0
Brand: Siemens
SKU: 6ES7921-3AH20-1AA0
Availability: InStock

Siemens SIMATIC S7-300 40-pole Front Connector for crimp contacts.

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

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ManufacturerSiemens

Part number6ES7921-3AH20-1AA0

Type Front Connector

Series SIMATIC S7-300

Poles 40

Contact Type Crimp contacts (without)

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12-month warranty

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40-pole connector For SIMATIC S7-300 Designed for crimp contacts Sold in packs of 100 Reliable signal connection

Product description

The Siemens 6ES7921-3AH20-1AA0 is a SIMATIC S7-300 Front Connector designed for use with crimp contacts. This 40-pole connector is sold in a package of 100 units (VPE=100). It is a crucial component for connecting field wiring to the S7-300 CPU or I/O modules.

This front connector is essential for building and maintaining Siemens SIMATIC S7-300 automation systems. It facilitates reliable electrical connections for signal transmission between the PLC and external devices such as sensors, actuators, and control panels, commonly found in various industrial automation applications.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 6ES7921-3AH20-1AA0 front connectors. We provide high-quality, cost-effective surplus components, ensuring you have access to the necessary parts for your industrial automation projects.

Technical specifications

Type	Front Connector
Series	SIMATIC S7-300
Poles	40
Contact Type	Crimp contacts (without)
Package	VPE=100 units

Common applications

PLC wiring

Industrial automation

Control cabinets

Machine building

Process control systems

Compatible systems

Siemens SIMATIC S7-300 CPUs Siemens SIMATIC S7-300 I/O modules

Also known as

Siemens 6ES7921-3AH20-1AA0 SIMATIC S7-300 front connector

Replaces / compatible with

This front connector is compatible with SIMATIC S7-300 CPUs and I/O modules that require 40-pole connectors for crimp contacts.

Technical note

Expert tip

Proper stripping and crimping of wires onto the contacts are crucial for ensuring a secure and reliable connection to the S7-300 module.

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Frequently asked questions

Are crimp contacts included with the Siemens 6ES7921-3AH20-1AA0 front connector?

No, the Siemens 6ES7921-3AH20-1AA0 SIMATIC S7-300 front connector is supplied without crimp contacts. These must be purchased separately and are typically available in packs of 100 units.