SIEMENS 6SL3430-6TE21-6AA1 Smart Line Module – SINAMICS S120 Series
When a Smart Line Module fails on the production floor, the consequences are immediate and severe: the entire SINAMICS S120 drive system loses its regulated DC bus supply, bringing servo axes, spindle drives, and coordinated motion sequences to an uncontrolled halt. Unplanned downtime in CNC machining centers, automotive assembly lines, or paper mills can cost thousands of dollars per hour. The SIEMENS 6SL3430-6TE21-6AA1 is the precision-engineered power infeed component that keeps your drive system running — providing clean, regulated energy to the DC link while enabling regenerative feedback to the grid.
Within the SINAMICS S120 booksize cabinet module family, the 6SL3430-6TE21-6AA1 occupies a critical mid-range power class position. SINAMICS S120 is Siemens’ flagship multi-axis drive platform, deployed across tens of thousands of installations worldwide in machine tools, printing presses, wind turbines, and material handling systems. This Smart Line Module variant delivers active front-end (AFE) functionality — meaning it not only draws power from the supply network but also feeds regenerative braking energy back, reducing net energy consumption and complying with modern energy efficiency mandates.
Technical Specifications
- Part Number: 6SL3430-6TE21-6AA1
- Series: SINAMICS S120 Booksize Cabinet Modules
- Module Type: Smart Line Module (Active Infeed)
- Manufacturer: Siemens AG
- Weight: 700 g (approx.)
- Cooling Method: Internal air cooling (booksize format)
- Communication Interface: DRIVE-CLiQ
- Control Unit Compatibility: CU320-2, CU310-2 and compatible S120 Control Units
- Regenerative Capability: Yes (energy feedback to supply network)
- Protection Class: IP20 (cabinet installation)
Note: Detailed electrical ratings (input voltage, rated current, DC link voltage) should be verified against the official Siemens SINAMICS S120 catalog or the product nameplate. Konmask.com does not fabricate specifications.
Key Features & Benefits
- Active Front End (AFE) Technology: Sinusoidal current draw from the supply network minimizes harmonic distortion, protecting sensitive equipment and meeting IEEE 519 / IEC 61000-3-12 grid quality standards.
- Regenerative Energy Feedback: Braking energy from motor deceleration is fed back to the grid rather than dissipated as heat, reducing energy costs by up to 30% in high-cycle applications.
- DRIVE-CLiQ Integration: Plug-and-play digital communication with Siemens Control Units enables automatic parameter identification, simplified commissioning via STARTER/TIA Portal, and real-time diagnostics.
- Compact Booksize Format: Optimized for cabinet integration alongside Motor Modules, minimizing panel footprint without sacrificing power density.
- Robust Industrial Design: Engineered for 24/7 continuous operation in demanding industrial environments with wide ambient temperature tolerance.
- Firmware Upgradeable: Supports Siemens firmware updates to maintain compatibility with evolving S120 system configurations.
Industry & Equipment Applications
- CNC Machine Tools: Multi-axis machining centers, turning centers, and grinding machines requiring precise coordinated motion.
- Automotive Manufacturing: Welding robots, press lines, transfer systems, and body-in-white assembly equipment.
- Printing & Packaging: Web-fed offset presses, flexographic printers, and high-speed packaging lines with regenerative tension control.
- Material Handling: Cranes, hoists, conveyor systems, and automated storage/retrieval systems (AS/RS).
- Paper & Textile Mills: Winders, unwinders, and draw roll sections requiring tight speed and tension regulation.
- Renewable Energy Test Rigs: Wind turbine nacelle test benches and motor test stands benefiting from regenerative load simulation.
System Integration & Compatible Parts
The 6SL3430-6TE21-6AA1 is designed to operate within the SINAMICS S120 booksize cabinet module ecosystem. Typical system components include:
- Control Units: CU320-2 DP, CU320-2 PN, CU310-2 DP/PN
- Motor Modules: SINAMICS S120 Single-Axis and Double-Axis Motor Modules (booksize)
- Supplementary Modules: Braking Modules, Capacitor Modules, Voltage Sensing Modules
- Line Filters & Reactors: Siemens line-side reactors and EMC filters for compliance
- DRIVE-CLiQ Cables: Siemens standard DRIVE-CLiQ signal cables
Contact Konmask.com to source compatible components and build a complete verified S120 drive system.
Our Quality Assurance Process
Every SIEMENS module sourced through Konmask.com undergoes a structured verification process before shipment:
- Authenticity Check: Visual inspection of labels, holograms, and serial number format against Siemens documentation standards.
- Functional Pre-screening: Where applicable, modules are powered-on tested to verify basic operational status.
- Packaging Integrity: Anti-static packaging with moisture barrier bags and shock-absorbing foam inserts for safe international transit.
- Documentation: Certificate of conformity and test records available upon request for regulated industries.
- Traceability: Batch and serial number records maintained for post-sale support and warranty claims.
How to Order
- Submit your inquiry via the Contact / RFQ form on Konmask.com with your required quantity and delivery timeline.
- Our technical team will confirm availability, lead time, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange secure packaging and dispatch with full tracking.
- Post-delivery technical support is available via email and phone for integration assistance.
Email: support@konmask.com | Phone/WhatsApp: +0086 19859288691
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: Focused exclusively on PLC, DCS, servo drives, and automation hardware — not a generalist marketplace.
- ✅ Global B2B Supply: Serving OEMs, system integrators, and MRO procurement teams across Asia, Europe, and the Americas.
- ✅ Competitive Lead Times: Extensive supplier network enables faster sourcing of obsolete and long-lead Siemens parts.
- ✅ Technical Pre-sales Support: Our engineers can advise on compatibility, firmware versions, and system configuration before you commit to an order.
- ✅ Secure Transactions: Professional invoicing, export documentation, and compliance with international trade regulations.
Frequently Asked Questions
Q: Is the 6SL3430-6TE21-6AA1 a new or refurbished unit?
A: Konmask.com supplies both new-in-box and professionally refurbished units depending on availability. The condition is clearly stated in the quotation. All refurbished units pass our QA process.
Q: Can this Smart Line Module replace other 6SL3430 variants?
A: The 6SL3430 series shares a common form factor, but power ratings and firmware differ between variants. Always verify the exact part number against your system’s engineering documentation before substitution. Our team can assist with cross-reference checks.
Q: What is the typical lead time?
A: Stock items ship within 3–5 business days. Non-stock items typically require 2–6 weeks depending on global supply chain conditions. Contact us for a real-time availability check.
Q: Do you provide a warranty?
A: Yes. New units carry the standard Siemens warranty. Refurbished units are covered by Konmask.com’s 90-day functional warranty. Extended warranty options are available on request.
Q: Can you supply the complete SINAMICS S120 drive system?
A: Yes. Konmask.com can source and supply complete S120 system configurations including Control Units, Motor Modules, Line Modules, and accessories. Submit your BOM for a consolidated quotation.
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Contact: support@konmask.com | +0086 19859288691
