Siemens 6SL3330-1TE41-2AA0 Unregulated DC Bus Supply – SINAMICS S120 Basic Line Module
When a high-power drive system loses its DC bus supply, the consequences are immediate and severe: production lines halt, servo axes lose position reference, and coordinated multi-axis motion collapses into uncontrolled stops. In heavy industries where a single unplanned downtime event can cost tens of thousands of dollars per hour, the reliability of the DC bus infeed is not a secondary concern — it is the foundation of the entire drive architecture. Without a properly rated and certified Basic Line Module, no amount of downstream drive engineering can compensate for an unstable or undersized power supply.
The Siemens 6SL3330-1TE41-2AA0 is a 120 kW Basic Line Module within the SINAMICS S120 Booksize Cabinet Kit and Chassis format family — one of the most widely deployed modular drive platforms in global industrial automation. Designed to convert three-phase AC mains into an unregulated DC bus voltage, this module serves as the central power backbone for multi-axis SINAMICS S120 drive line-ups. Its position in the S120 ecosystem makes it a critical component in applications ranging from paper mills and steel rolling lines to large-scale packaging machinery and marine propulsion systems. Globally, the SINAMICS S120 platform is trusted by OEMs and end-users across more than 100 countries, and the 6SL3330-1TE41-2AA0 represents the high-power tier of this proven product family.
Technical Specifications
- Part Number / SKU: 6SL3330-1TE41-2AA0
- Manufacturer: Siemens AG
- Product Series: SINAMICS S120
- Module Type: Basic Line Module (Unregulated Infeed)
- Rated Power: 120 kW
- Input Voltage: 3-phase AC, 380–480 V / 500–690 V (version dependent)
- DC Bus Output: Unregulated DC voltage (approx. 1.35 × Vac input)
- Cooling Method: Internal air cooling (fan-assisted)
- Protection Class: IP20
- Communication Interface: DRIVE-CLiQ
- Form Factor: Chassis / Cabinet Kit
- Weight: Approx. 44.6 kg
- Standards Compliance: CE, UL, cUL
Note: All specifications are sourced from Siemens official documentation. Do not rely solely on this page for engineering design — always verify against the current Siemens SINAMICS S120 hardware manual.
Key Features & Benefits
- Unregulated DC Bus Infeed: Provides a stable, cost-effective DC bus supply without the complexity of Active Line Modules — ideal for applications where regenerative feedback to the grid is not required.
- DRIVE-CLiQ Integration: Seamless plug-and-play communication with SINAMICS S120 Motor Modules, Control Units (CU320-2), and the STARTER/Startdrive commissioning tools.
- High Power Density: 120 kW rated power in a compact chassis format reduces cabinet footprint and simplifies system integration.
- Proven Reliability: Built to Siemens’ industrial-grade quality standards with robust thermal management for continuous duty cycles in demanding environments.
- Scalable Architecture: Supports parallel connection of multiple Motor Modules on a shared DC bus, enabling flexible multi-axis drive configurations.
- Global Certifications: CE, UL, and cUL markings ensure compliance with international safety and EMC standards for worldwide deployment.
Industry & Equipment Applications
- Steel & Metals: Rolling mills, coilers, and tension control systems requiring high-power coordinated multi-axis drives.
- Paper & Printing: Web tension control, winder/unwinder drives, and dryer section drives in paper machines.
- Packaging Machinery: High-speed multi-axis servo systems in form-fill-seal, cartoning, and palletizing lines.
- Marine & Offshore: Thruster drives, winch systems, and crane drives on vessels and offshore platforms.
- Mining & Minerals: Conveyor drives, crusher drives, and hoist systems in underground and surface mining operations.
- Water & Wastewater: Large pump and blower drives in municipal and industrial water treatment facilities.
- Test Benches: High-power motor test rigs and dynamometer systems in R&D and production testing environments.
System Integration & Compatible Parts
The 6SL3330-1TE41-2AA0 is designed to operate within the SINAMICS S120 Chassis and Cabinet Kit ecosystem. Typical system configurations include:
- Control Unit: Siemens CU320-2 DP / CU320-2 PN (PROFIBUS / PROFINET)
- Motor Modules: SINAMICS S120 Single-Axis and Double-Axis Motor Modules (Chassis format)
- Line Filter: Siemens 6SL3000 series line filters for EMC compliance
- Line Reactor: Siemens 6SL3000 series line reactors for harmonic mitigation
- Braking Module: SINAMICS S120 Braking Module for dynamic braking applications
- DRIVE-CLiQ Hub: DMC20 / DME20 for extended DRIVE-CLiQ topologies
- Commissioning Software: Siemens STARTER or TIA Portal Startdrive
Always consult the SINAMICS S120 system manual and Siemens SIZER configuration tool to verify component compatibility for your specific application.
Our Quality Assurance Process
At Konmask.com, every Siemens SINAMICS S120 module we supply undergoes a structured quality verification process before shipment:
- Source Verification: We source exclusively from authorized distributors and verified surplus channels with full traceability documentation.
- Visual & Physical Inspection: Each unit is inspected for physical damage, label authenticity, connector integrity, and firmware version markings.
- Documentation Package: Shipments include available test records, original packaging where present, and a Konmask inspection checklist.
- Secure Packaging: Anti-static packaging with shock-absorbing materials ensures safe transit for sensitive power electronics.
- Post-Sale Support: Our technical team is available to assist with installation queries, compatibility questions, and warranty claims.
How to Order
- Submit an Inquiry: Use the contact form on this page or email [email protected] with your required quantity and delivery timeline.
- Receive a Quote: Our team will respond within 1 business day with pricing, availability, and lead time confirmation.
- Order Confirmation: Upon agreement, we issue a proforma invoice and confirm your order in writing.
- Payment & Dispatch: We accept T/T bank transfer and other agreed payment terms. Shipment is arranged via DHL, FedEx, or freight forwarder per your preference.
- After-Sales Support: Track your shipment and reach our technical support team at any stage post-delivery.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: Focused exclusively on PLC, DCS, drives, and automation components — not a generalist marketplace.
- ✅ Global B2B Supply: Serving engineering firms, system integrators, and maintenance teams across Asia, Europe, the Middle East, and the Americas.
- ✅ Fast Response: Dedicated account managers respond to all inquiries within 24 hours on business days.
- ✅ Competitive Pricing: Direct sourcing relationships allow us to offer competitive pricing on both new and surplus Siemens inventory.
- ✅ Technical Expertise: Our team includes qualified automation engineers who can advise on compatibility, replacement, and system integration.
- ✅ Secure Transactions: All orders are processed with full documentation, clear payment terms, and transparent shipping arrangements.
Frequently Asked Questions
- Q: What is the difference between a Basic Line Module and an Active Line Module in SINAMICS S120?
- A: A Basic Line Module (BLM) provides an unregulated DC bus supply — it converts AC mains to DC without regenerative capability. An Active Line Module (ALM) provides a regulated DC bus and supports energy regeneration back to the grid. The 6SL3330-1TE41-2AA0 is a BLM, making it suitable for applications where regenerative braking energy is dissipated via a braking resistor rather than fed back to the supply.
- Q: Is the 6SL3330-1TE41-2AA0 compatible with both 400V and 690V supply systems?
- A: The SINAMICS S120 Basic Line Module range includes variants for different voltage classes. Please confirm your supply voltage with our technical team before ordering to ensure the correct variant is supplied for your installation.
- Q: Can this module be used as a direct replacement for a failed unit in an existing S120 system?
- A: In most cases, yes — provided the replacement unit matches the original part number exactly, including any suffix codes. DRIVE-CLiQ-based systems may require a firmware update or re-parameterization after replacement. Our technical team can advise on the replacement procedure.
- Q: What is the typical lead time for the 6SL3330-1TE41-2AA0?
- A: Lead time depends on current stock availability. Please submit an inquiry for a real-time availability and lead time confirmation. We maintain relationships with multiple supply channels to minimize lead times for urgent requirements.
- Q: Do you provide a warranty on Siemens SINAMICS S120 modules?
- A: Yes. All units supplied by Konmask.com are covered by our standard warranty policy. Please contact [email protected] for full warranty terms applicable to your order.
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