Siemens LDZ10501652 Line Reactor / Input Choke – SINAMICS Frequency Converter Series
When a SINAMICS variable frequency drive operates without a properly rated input line reactor, the consequences for an industrial facility can be severe: excessive harmonic distortion degrades power quality across the entire plant, nuisance tripping interrupts production lines, and unprotected drive input rectifiers fail prematurely — often taking connected motors and control systems with them. Unplanned downtime in automated manufacturing, HVAC, water treatment, or material handling environments translates directly into lost revenue and costly emergency maintenance. The Siemens LDZ10501652 line reactor is the engineered solution that stands between your drive system and these failure modes.
The LDZ10501652 occupies a critical position within the Siemens SINAMICS drive accessory ecosystem. Designed as a matched input choke for specific SINAMICS G or S series drive ratings, it delivers precisely calibrated inductance to limit inrush current, attenuate voltage spikes, and reduce total harmonic distortion (THD) at the drive’s AC input terminals. In global industrial automation markets — where Siemens SINAMICS drives power everything from compressors in petrochemical plants to conveyors in automotive assembly — the LDZ10501652 is a trusted, OEM-specified component that ensures drives operate within their design envelope and comply with grid harmonic standards such as IEEE 519 and EN 61000-3-12.
Technical Specifications
- Part Number: LDZ10501652
- Manufacturer: Siemens AG
- Product Family: SINAMICS Drive Accessories — Line Reactor / Input Choke
- Compatible Drive Series: SINAMICS G120 / G120C / G120D / S120 (verify exact drive frame size and power rating against Siemens documentation)
- Function: AC input line reactor (choke) for harmonic mitigation and inrush current limitation
- Weight: Approx. 300 g
- Compliance: CE marked; designed to support IEEE 519 / EN 61000-3-12 harmonic limits
- Note: All specifications should be verified against the official Siemens SINAMICS product documentation or Siemens Industry Mall prior to installation.
Key Features & Benefits
- Harmonic Reduction: Significantly reduces current THD at the drive input, protecting upstream transformers and sensitive equipment on the same bus.
- Inrush Current Limiting: Limits peak inrush current during drive power-up, reducing stress on input fuses, contactors, and the drive’s rectifier bridge.
- Voltage Spike Attenuation: Absorbs transient overvoltages from the supply network before they reach the drive’s DC bus capacitors.
- OEM-Matched Design: Engineered by Siemens specifically for SINAMICS drive ratings — no guesswork on inductance values or current ratings.
- Extended Drive Lifespan: By operating the drive within its specified electrical environment, the LDZ10501652 directly contributes to longer MTBF and reduced lifecycle costs.
- Compact Form Factor: Designed for panel or DIN-rail mounting in standard industrial control cabinets alongside SINAMICS drives.
Industry & Equipment Applications
- Manufacturing & Assembly: Conveyor systems, robotic cells, CNC machine tool spindle drives
- HVAC & Building Automation: Variable-speed pump and fan drives in commercial and industrial buildings
- Water & Wastewater Treatment: Pump station VFD installations requiring grid harmonic compliance
- Oil, Gas & Petrochemical: Compressor and blower drive systems in hazardous and non-hazardous areas
- Automotive & Tier-1 Suppliers: High-cycle production line drives where uptime is critical
- Food & Beverage Processing: Mixer, extruder, and packaging line variable-speed drives
- Mining & Minerals: Belt conveyor and crusher drive systems with demanding power quality requirements
System Integration & Compatible Parts
The LDZ10501652 is designed to integrate seamlessly within a Siemens SINAMICS drive system. Typical companion components include:
- SINAMICS G120 / G120C Power Modules (PM240, PM250, PM260 series)
- SINAMICS S120 Booksize and Chassis format drive units
- Siemens SINAMICS output filters (dv/dt filters, sine-wave filters) for motor cable protection
- Siemens SITOP power supplies for control circuit power
- Siemens SIMATIC S7-1200 / S7-1500 PLCs for drive control integration via PROFINET or PROFIBUS
Always cross-reference the LDZ10501652 against the specific SINAMICS drive’s hardware installation manual to confirm compatibility with your drive’s power rating and input voltage.
Our Quality Assurance Process
- Authentic Sourcing: All Siemens parts at Konmask.com are sourced through verified supply channels. We do not deal in counterfeit or grey-market components.
- Pre-Shipment Inspection: Each unit undergoes visual inspection for physical integrity, label authenticity, and packaging condition before dispatch.
- Traceability: Batch and date codes are recorded for full supply chain traceability.
- Secure Packaging: Anti-static and shock-resistant packaging protects sensitive electronic components during international transit.
- Documentation: Certificates of conformity and packing lists provided upon request for customs and quality records.
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Provide your required quantity, delivery destination, and any project timeline requirements.
- Our technical sales team will respond within 1 business day with availability, lead time, and a formal quotation.
- Upon order confirmation, we arrange secure packaging and international shipping with full tracking.
- Post-delivery support is available for installation queries and documentation requests.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on industrial control and automation components — not a generalist marketplace.
- B2B Inquiry-First Model: We understand procurement workflows. RFQs, POs, and formal quotations are our standard process.
- Global Shipping: We ship to manufacturing facilities, system integrators, and MRO warehouses worldwide.
- Technical Competence: Our team can assist with cross-referencing, compatibility verification, and application questions.
- Responsive Communication: Dedicated support via email and phone for time-sensitive procurement needs.
Frequently Asked Questions
- Q: What is the Siemens LDZ10501652 used for?
- A: The LDZ10501652 is a line reactor (input choke) designed for use with Siemens SINAMICS frequency converters. It reduces harmonic distortion, limits inrush current, and protects the drive from supply network transients.
- Q: Which SINAMICS drives is the LDZ10501652 compatible with?
- A: It is designed for specific SINAMICS G and S series drive ratings. Please provide your drive model and power rating when submitting an inquiry so our team can confirm compatibility.
- Q: Do you supply original Siemens parts?
- A: Yes. Konmask.com sources authentic Siemens components through verified supply channels. We provide documentation upon request.
- Q: Can you ship internationally?
- A: Yes, we ship globally to industrial customers, system integrators, and MRO distributors. Contact us for shipping options and lead times to your destination.
- Q: How do I get a formal quotation?
- A: Submit your RFQ via the contact form on this page or email support@konmask.com with your quantity and delivery requirements. We respond within 1 business day.
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