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Siemens SIMATIC S7-300 communication processors

6GK7343-1GX21-0XE0

Price and Availability Inquiry

Siemens CP 343-1 Advanced Industrial Ethernet processor for SIMATIC S7-300 and C7-300 stations, with integrated Web and file services.

Sales SupportDirect specialist contact

QuotationCurrent commercial details

DeliveryDHL · FedEx · UPS

Fast quotation support Send the model and required quantity directly to Lisa Lin using the contact options on the right.

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LL Lisa LinSales Specialist

WhatsApp +86 18965423501

Email sales7@amikon.cn

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For faster service, please include the model 6GK7343-1GX21-0XE0 and required quantity in your inquiry.

Siemens 6GK7343-1GX21-0XE0

Technical Specifications

Source-verified identification, interface, operating and installation data for 6GK7343-1GX21-0XE0.

01Product IdentityExact catalog identification

ManufacturerSiemens

Article number6GK7343-1GX21-0XE0

Product designationCP 343-1 Advanced

Firmware baselineV1.0 or later

02Ethernet & SupplySiemens datasheet interface data

Ethernet interface1 × RJ45

Transmission rate10 to 100 Mbit/s

Supply voltages5 V DC / 24 V DC

External supply range20.4 to 28.8 V DC

03Power & CapacitySiemens datasheet performance data

Backplane current0.14 A at 5 V DC

Power loss14.7 W

Active connections48 maximum

SEND/RECEIVE connections16 maximum

04Mechanical & EnvironmentSiemens datasheet physical data

Horizontal operation0 to +60 °C

Vertical operation0 to +40 °C

Dimensions (W × H × D)80 × 125 × 120 mm

Net weight0.8 kg

Siemens 6GK7343-1GX21-0XE0 Product Support

Frequently Asked Questions

Product-specific configuration, compatibility, application and ordering guidance for 6GK7343-1GX21-0XE0.

How is the GX21 version distinguished from other CP 343-1 modules?

Confirm the complete number 6GK7343-1GX21-0XE0 and firmware label before configuring a replacement.

Which controller families accept this processor?

It is intended for SIMATIC S7-300 and C7-300 stations.

Which Ethernet connector is fitted?

The front interface is an 8-pin RJ45 Industrial Ethernet port.

Can existing project data be retained during replacement?

Use the C-PLUG and archived STEP 7 project according to the Siemens replacement procedure.

Which communication services are available?

S7 communication and SEND/RECEIVE services are supported together with integrated Web and file functions.

Does a GX31 successor require an engineering review?

Yes. Siemens documents replacement notes, so the project, firmware and service configuration should be checked.

Which details should accompany a quotation request?

Provide the full order number, firmware state, C-PLUG requirement and installed CPU/rack data.

Order Fulfilment

Payment and Worldwide Delivery

AMIKON coordinates product verification, commercial confirmation, packing and international shipment for industrial automation parts. Each order is handled according to the confirmed model, quantity and delivery destination.

Order Confirmation

Model, part number, quantity, availability, lead time and payment terms are confirmed in the formal quotation or proforma invoice.

Product Preparation

The item reference is checked before dispatch. Packaging is selected to protect industrial components during international transport.

International Shipping

Shipment can be arranged through DHL, FedEx or UPS according to the destination, parcel size and confirmed order requirements.

Dispatch and Tracking

Dispatch information and the available tracking reference are shared after the shipment has been collected by the selected carrier.

AMIKON Service Standards

Support at Every Stage of Your Order

Clear assistance from initial product identification through dispatch and after-sales communication.

Product IdentificationThe manufacturer, complete model and part-number details are reviewed before quotation.

Dedicated Sales ContactLisa Lin provides quotation and order communication through email and WhatsApp.

Order DocumentationCommercial, packing and shipment details are supplied according to the confirmed order.

After-Sales CommunicationFor support, provide the order reference, product label, fault description and clear photos.

Pre-Dispatch VerificationThe product label, model reference, quantity and visible condition are checked against the confirmed order before packing.

Global Logistics CoordinationInternational express or freight arrangements are coordinated according to the destination, shipment size and confirmed delivery terms.

Important delivery information

Product availability, dispatch date, freight cost and delivery time depend on the confirmed order and destination. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order. Please contact AMIKON for current commercial and shipping details.

AMIKON Professional Services

Warranty, Sourcing and Global Export Support

With 20 years of experience in industrial automation, AMIKON supplies discontinued and hard-to-find DCS, PLC and TSI spare parts to customers worldwide.

01 · WARRANTY

12-Month Product Warranty

Products supplied by AMIKON include a standard 12-month warranty. Warranty handling is based on the confirmed order, product label, fault information and supporting photos or videos.

02 · SPECIALIST SOURCING

Discontinued and Hard-to-Find Parts

Our sourcing service focuses on industrial automation DCS, PLC and TSI spare parts, including obsolete, discontinued and scarce models required for maintenance and replacement projects.

03 · GLOBAL EXPORT LOGISTICS

One-Stop International Shipping

AMIKON can coordinate domestic export customs procedures and arrange international express or sea freight. Packing lists, commercial invoices and available origin documentation can be prepared according to the confirmed order.

04 · TECHNICAL INFORMATION

Model and Specification Support

We assist customers with model identification, specification review, compatibility checks and Datasheet or manual searches. Support also includes distinguishing earlier and later model versions and checking whether a submitted model reference is complete and correctly written.

05 · PRE-DISPATCH CHECK

Product Verification Before Shipment

The product label, complete model, part number, quantity and visible condition are reviewed against the confirmed order before packing.

06 · INDUSTRIAL PACKAGING

Secure Packing for International Transit

Packaging is selected according to the component type, shipment size and transport method to support safe international handling.

07 · ORDER DOCUMENTATION

Commercial and Shipping Documents

Commercial invoices, packing lists and available origin information can be prepared according to the confirmed order and destination requirements.

08 · AFTER-SALES SUPPORT

Responsive Order Follow-Up

For order support, customers can provide the order reference, product label, issue description and clear photos for review by the AMIKON team.

Need help identifying a spare part?Send the complete manufacturer, model, part number and clear product-label photos to Lisa Lin.

WhatsApp Lisa Email Support

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Request model availabilitySend the complete model and required quantity to AMIKON for quotation.

International enquiriesShipping options and lead time are confirmed according to destination and order details.

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Siemens 6GK7343-1GX21-0XE0 CP 343-1 Advanced Communication Processor

6GK7343-1GX21-0XE0

20 Years of Experience in Industrial Automation Supply

6GK7343-1GX21-0XE0

Technical Specifications

Frequently Asked Questions

How is the GX21 version distinguished from other CP 343-1 modules?

Which controller families accept this processor?

Which Ethernet connector is fitted?

Can existing project data be retained during replacement?

Which communication services are available?

Does a GX31 successor require an engineering review?

Which details should accompany a quotation request?

Payment and Worldwide Delivery

Order Confirmation

Product Preparation

International Shipping

Dispatch and Tracking

Support at Every Stage of Your Order

Warranty, Sourcing and Global Export Support

12-Month Product Warranty

Discontinued and Hard-to-Find Parts

One-Stop International Shipping

Model and Specification Support

Product Verification Before Shipment

Secure Packing for International Transit

Commercial and Shipping Documents

Responsive Order Follow-Up

Recommended Industrial Models

Related Products