Siemens 6SN1146-1AB00-0BA1 – Regulated Infeed / Regenerative Feedback Module | SIMODRIVE 611 Platform
The Siemens 6SN1146-1AB00-0BA1 is a regulated infeed and regenerative feedback module designed for the SIMODRIVE 611 modular AC servo drive system. It provides a stable, regulated DC bus voltage for connected drive modules while enabling energy regeneration back to the AC supply — a critical requirement in high-cycle CNC machining centers, transfer lines, and precision motion control systems.
As a konmask.com sourced component, this unit is verified against Siemens OEM specifications and is available for immediate procurement by qualified engineering and MRO teams worldwide.
Complete Technical Specifications
| Part Number (MLFB) | 6SN1146-1AB00-0BA1 |
| Manufacturer | Siemens AG |
| Product Family | SIMODRIVE 611 |
| Module Type | Regulated Infeed / Regenerative Feedback Module |
| Input Voltage | 3-phase AC, 380–480 V ±10% |
| DC Bus Output | Regulated DC link voltage |
| Regenerative Feedback | Yes – active regeneration to AC supply |
| Cooling Method | Forced air (internal fan) |
| Protection Class | IP20 |
| Mounting | DIN rail / panel mount, SIMODRIVE 611 booksize format |
| Weight | 5.8 kg |
| Communication Interface | SIMODRIVE 611 internal bus |
| Standards Compliance | CE, UL, EN 61800-3 |
| Operating Temperature | 0 °C to +40 °C (up to +55 °C with derating) |
| Storage Temperature | -25 °C to +70 °C |
| Humidity | 5–95% RH, non-condensing |
Proven Application Environments
- CNC Machining Centers – Siemens SINUMERIK 840D / 810D controlled multi-axis systems requiring regulated DC bus stability
- Transfer Lines & Flexible Manufacturing Systems (FMS) – High-cycle duty with regenerative braking energy recovery
- Grinding & Milling Machines – Precision spindle and feed axis coordination via SIMODRIVE 611 drive train
- Robotics & Handling Systems – Multi-axis servo coordination with shared DC bus architecture
- Printing & Packaging Machinery – Synchronized multi-drive applications demanding clean DC bus regulation
- MRO / Spare Parts Replacement – Direct OEM-equivalent replacement for existing SIMODRIVE 611 infeed modules
Engineering Advantages
- Regulated DC Bus: Maintains stable DC link voltage under dynamic load changes, protecting downstream drive modules and motors
- Active Regeneration: Returns braking energy to the AC mains, reducing energy consumption by up to 30% in high-inertia applications
- Modular Architecture: Plug-and-play integration within the SIMODRIVE 611 booksize cabinet — no additional interface hardware required
- Proven Reliability: Siemens SIMODRIVE 611 platform has 20+ years of field-proven deployment in global manufacturing environments
- Harmonic Mitigation: Regulated infeed topology reduces harmonic distortion on the AC supply compared to unregulated diode rectifier modules
- Compact Footprint: Booksize form factor maximizes cabinet space efficiency in dense multi-axis configurations
System Architecture & Signal Flow
The 6SN1146-1AB00-0BA1 occupies the infeed position in a SIMODRIVE 611 drive group. AC mains power enters the module, is rectified and regulated to a stable DC bus voltage, and is distributed via the internal DC bus bar to all connected axis drive modules (e.g., 6SN1123, 6SN1124 series). During deceleration, regenerative energy flows in reverse through the IGBT bridge back to the AC supply. The module communicates drive group status via the SIMODRIVE 611 internal bus to the SINUMERIK CNC controller.
Typical Drive Group Configuration:
- AC Mains → 6SN1146-1AB00-0BA1 Infeed Module → DC Bus Bar → Axis Drive Modules → Servo Motors
- Monitoring: Drive group ready signal, DC bus voltage feedback, fault relay output
Sourcing & Quality Verification
- Origin: Siemens AG, Germany — OEM manufactured component
- Condition: New / Refurbished / Tested — specify requirement at inquiry
- Traceability: Serial number and date code verification available upon request
- Testing: Functional load test and DC bus output verification performed prior to shipment
- Packaging: Anti-static ESD packaging with shock-absorbing foam insert
- Documentation: Siemens product datasheet and test report available on request
- Export Compliance: HS Code 8537.10 — subject to applicable export control regulations
Procurement Process
- Submit Inquiry: Contact support@konmask.com with your required quantity, delivery timeline, and destination country
- Quotation: Receive a formal quotation with unit price, lead time, and shipping options within 24 business hours
- Order Confirmation: Issue PO or confirm via email — proforma invoice issued immediately
- Quality Inspection: Pre-shipment functional test and documentation package prepared
- Shipment: DHL / FedEx / UPS express or sea freight — tracking number provided within 24 hours of dispatch
- After-Sales Support: 12-month warranty on verified units; technical support available via email and phone
Technical FAQ
Q: Is the 6SN1146-1AB00-0BA1 compatible with SINUMERIK 840D sl?
A: Yes. The SIMODRIVE 611 platform is the standard drive system for SINUMERIK 840D and 840D sl CNC controllers. This infeed module is fully compatible when used within a correctly configured SIMODRIVE 611 drive group.
Q: What is the difference between a regulated and unregulated infeed module?
A: A regulated infeed module (such as this unit) uses an active IGBT bridge to maintain a constant DC bus voltage and enables regenerative energy feedback to the AC mains. An unregulated module uses a passive diode rectifier — lower cost but no regeneration capability and less DC bus stability under dynamic loads.
Q: Can this module replace a 6SN1145 series unregulated infeed?
A: Not directly — the 6SN1146 regulated infeed requires a different cabinet configuration and monitoring module (e.g., 6SN1162 series). Consult your Siemens SIMODRIVE 611 system manual or contact our technical team before substitution.
Q: What is the lead time for this part?
A: Standard lead time is 3–7 business days for in-stock units. For sourced or refurbished units, lead time is 10–21 business days. Contact us for current stock status.
Q: Do you provide a warranty?
A: Yes. All verified units carry a 12-month functional warranty from date of shipment. Warranty covers manufacturing defects and functional failure under normal operating conditions.
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