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| Place of Origin: | Germany |
| Brand Name: | Siemens |
| Certification: | COO & COC |
| Model Number: | 6RY1803-0CA04 C98043-A7115-L12 |
6RY1803-0CA04 C98043-A7115-L12 Siemens Frequency Converter Equipment SINAMICS DC MASTER Field Supply Board
The Siemens 6RY1803-0CA04 (also referenced under the alternative designation C98043-A7115-L12) is a high-performance DC-link choke designed for use in Siemens SINAMICS drive systems, particularly within the SINAMICS S120, S150, and related modular drive platforms. This critical power quality component provides 12 mH inductance at a rated current of 450 A, helping to stabilize the DC bus voltage, reduce harmonic distortion, and protect sensitive drive electronics from current spikes and grid disturbances.
Installed directly in the DC link circuit between the line converter and motor modules, this choke smooths current ripple, limits di/dt (rate of current change), and improves overall system efficiency and reliability—especially in multi-axis or regenerative applications. Its robust construction meets stringent industrial standards for thermal performance, vibration resistance, and long-term operation in demanding environments such as metal processing, cranes, test benches, and large-scale automation systems.
As an official Siemens component, the 6RY1803-0CA04 ensures full compatibility with SINAMICS engineering tools like STARTER and SIZER, and integrates seamlessly into certified drive configurations for compliance with international standards including IEC, UL, and CE.
Product Overview: Siemens 6RY1803-0CA04 (C98043-A7115-L12)
| Manufacturer | Siemens AG |
| Product Family | SINAMICS Drive Components |
| Primary Order Number | 6RY1803-0CA04 |
| Alternative Designation | C98043-A7115-L12 (older or internal project code) |
| Component Type | DC-Link Choke (Inductor) |
| Inductance | 12 mH |
Product details pictures
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