Genuine SIEMENS 6GK7343-1EX21-0XE0 CP 343-1 Ethernet Module | SIMATIC S7-300 Series – Verified Source
Konmask.com is a verified industrial automation components supplier specializing in genuine SIEMENS SIMATIC hardware. The 6GK7343-1EX21-0XE0 is a high-performance Communications Processor (CP) for the S7-300 PLC family, enabling seamless Industrial Ethernet connectivity for demanding automation environments. Every unit we supply is sourced through traceable channels and undergoes multi-point verification before dispatch.
Technical Specifications
- Part Number: 6GK7343-1EX21-0XE0
- Product Family: SIMATIC S7-300 CP 343-1
- Function: Communications Processor for Industrial Ethernet (ISO / TCP/IP)
- Interface: 1 × RJ45 (10/100 Mbit/s, auto-sensing)
- Protocols Supported: ISO Transport, TCP/IP, UDP, S7 Communication, FETCH/WRITE, Open IE Communication
- Max. Connections: 16 configurable connections
- Configuration: Via STEP 7 / TIA Portal (HW Config)
- Power Supply: Via S7-300 backplane bus (5 VDC)
- Operating Temperature: 0 °C to +60 °C
- Storage Temperature: −40 °C to +70 °C
- Dimensions (W×H×D): 40 × 125 × 120 mm
- Weight: Approx. 420 g
- Degree of Protection: IP20
- Certifications: CE, UL, cULus, ATEX (Zone 2)
- MLFB / Order Number: 6GK7343-1EX21-0XE0
Our 4-Step Quality Verification Process
- Source Traceability Check — We verify the supply chain origin of each unit, cross-referencing batch codes and manufacturer documentation to confirm authentic SIEMENS production.
- Physical Inspection — Trained technicians inspect housing integrity, label authenticity (hologram, MLFB code, date code), connector condition, and packaging seal.
- Functional Power-On Test — Where applicable, modules are bench-tested for basic power-on response and communication port activity.
- Documentation & Packaging Audit — Original manuals, certificates, and ESD-safe packaging are verified before final dispatch.
Units that fail any step are quarantined and never listed for sale.
Key Features & Benefits
- ✅ Genuine SIEMENS hardware — not refurbished, not counterfeit
- ✅ Industrial Ethernet connectivity for S7-300 PLCs via standard RJ45
- ✅ Multi-protocol support: ISO, TCP/IP, UDP, S7 Comm, FETCH/WRITE
- ✅ Up to 16 simultaneous connections for flexible network topologies
- ✅ Easy integration via STEP 7 HW Config or TIA Portal
- ✅ Robust design rated for industrial environments (IP20, wide temp range)
- ✅ Fast global dispatch with full export documentation available
- ✅ B2B pricing available for volume orders — contact us for a quote
Typical Applications
- Factory automation and process control networks requiring Ethernet backbone connectivity
- SCADA / HMI integration with S7-300 controllers over TCP/IP
- Remote monitoring and data acquisition (FETCH/WRITE to third-party systems)
- Machine-to-machine (M2M) communication in automotive, food & beverage, and chemical plants
- Retrofit and upgrade projects replacing older PROFIBUS or serial communication modules
- Distributed control architectures requiring multiple simultaneous Ethernet connections
Compatible System Components
- PLC Rack: SIMATIC S7-300 (any standard rack with backplane bus)
- CPUs: CPU 312 / 314 / 315 / 317 / 319 series and variants
- Power Supplies: PS 307 (2A / 5A / 10A)
- Engineering Software: STEP 7 V5.x, TIA Portal V13 and above
- Switches / Infrastructure: SCALANCE X series Industrial Ethernet switches (recommended)
- Related CPs: CP 343-1 Advanced (6GK7343-1GX31-0XE0), CP 343-1 Lean (6GK7343-1CX10-0XE0)
Not sure about compatibility? Contact our technical team before ordering — we are happy to verify fit for your specific configuration.
Global Sourcing & Shipping Capabilities
- Stock Location: China (Mainland) — bonded warehouse with export clearance capability
- Lead Time: In-stock items typically ship within 1–3 business days
- Shipping Methods: DHL Express, FedEx International Priority, UPS Worldwide, sea freight for bulk orders
- Export Documentation: Commercial invoice, packing list, certificate of origin, and SIEMENS datasheet provided upon request
- Customs & HS Code: HS 8537.10 — we assist with customs classification queries
- Regions Served: Asia-Pacific, Middle East, Europe, Americas, Africa — worldwide delivery available
- Minimum Order: 1 unit (no MOQ); volume pricing available from 5+ units
Certifications & Compliance Statement
- CE — Conformité Européenne (EU Machinery & EMC Directives)
- UL / cULus — Underwriters Laboratories (North American safety standard)
- ATEX Zone 2 — Suitable for use in potentially explosive atmospheres (gas, Zone 2)
- RoHS Compliant — Restriction of Hazardous Substances
Konmask.com does not modify, relabel, or alter any hardware. All certification markings are original as applied by SIEMENS AG. Compliance documents available upon request.
How to Order
- Add to Cart — Click Add to Cart for standard single-unit purchase at listed price.
- Request a Quote — For volume orders (5+ units), email support@konmask.com with quantity and delivery destination.
- Provide PO / Project Details — B2B customers may submit a Purchase Order. We accept T/T (bank transfer), PayPal, and other methods by arrangement.
- Confirm & Ship — Once payment is confirmed, we dispatch within 1–3 business days with full tracking provided.
📞 Phone / WhatsApp: +0086 19859288691
📧 Email: support@konmask.com
🌐 Website: https://Konmask.com
Authenticity & Trust FAQ
Q: How do I know this is a genuine SIEMENS product?
A: Every unit is sourced through traceable supply channels. We provide the MLFB code, date code, and batch reference on request. Our 4-step verification process ensures no counterfeit units enter our inventory.
Q: Can I get a datasheet or technical documentation?
A: Yes. Email us at support@konmask.com and we will send the official SIEMENS datasheet and, where available, the original product manual.
Q: Do you offer a warranty?
A: We offer a 90-day DOA (Dead on Arrival) warranty. If a unit fails within 90 days of receipt due to a manufacturing defect, we will replace or refund it.
Q: Are these new or refurbished units?
A: Unless explicitly stated otherwise, all units are new, unused, and in original packaging. We do not sell refurbished units without clear disclosure.
Q: Can you provide an export license or certificate of origin?
A: Yes. We can provide a certificate of origin (China) and assist with export documentation for customs clearance.
Q: What if I order the wrong part?
A: Contact us within 7 days of receipt. We will work with you to identify the correct part number and arrange an exchange where stock permits.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691
