Siemens 6SL3000-0CE15-0AA0 EMC Line Filter – SINAMICS S120

Siemens 6SL3000-0CE15-0AA0 — 16A Booksize Line Filter for SINAMICS S120 Multi-Axis Drive Systems

The Siemens 6SL3000-0CE15-0AA0 is a passive EMC line filter rated at 16 A, engineered specifically for the SINAMICS S120 booksize drive architecture. Its primary function within the control loop is to attenuate conducted high-frequency interference generated by the PWM switching of the infeed and motor modules before that noise reaches the upstream supply network. Without a correctly rated line filter at this position, common-mode and differential-mode currents in the frequency range of 150 kHz to 30 MHz propagate freely into the facility power bus, violating IEC/EN 61800-3 Category C2 emission limits and introducing signal integrity risks for co-located instrumentation, encoder feedback lines, and fieldbus communications.

Installed between the three-phase AC supply and the SINAMICS S120 Active Line Module (ALM) or Smart Line Module (SLM), the 6SL3000-0CE15-0AA0 forms the first stage of the drive system’s EMC compliance chain. Its passive LC network — comprising X-capacitors across line conductors, Y-capacitors from line to PE, and series inductors — presents a low-impedance path for high-frequency currents to the protective earth while maintaining negligible impedance at 50/60 Hz fundamental frequency. The result is a clean power interface that satisfies both the drive system’s immunity requirements and the facility’s emission budget.

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Technical Parameters

Hardware Logical Analysis

The 6SL3000-0CE15-0AA0 employs a two-stage passive filter topology. The first stage consists of differential-mode inductors wound on grain-oriented silicon steel cores, sized to present sufficient impedance at switching harmonics (typically 4–16 kHz fundamental PWM frequency and its integer multiples) without introducing meaningful voltage drop at 50/60 Hz load current. Core saturation margin is maintained above 150% of rated current to prevent filter degradation under transient inrush conditions during ALM pre-charge sequences.

The second stage uses X-capacitors (class X2, 275 V AC rated) connected line-to-line to attenuate differential-mode noise, and Y-capacitors (class Y2, 250 V AC rated) connected from each phase conductor to the protective earth terminal to provide a low-impedance return path for common-mode currents. The Y-capacitor network is the primary mechanism by which the filter achieves C2 attenuation in the 150 kHz–30 MHz band. The PE terminal must be bonded to the cabinet backplate with a low-inductance, short-length conductor — Siemens specifies a maximum PE conductor length of 100 mm with minimum cross-section of 10 mm² to preserve filter insertion loss at high frequencies.

The booksize mechanical format integrates the filter’s terminal block directly into the S120 line-up bus bar system. This eliminates the need for external wiring between the filter output and the infeed module input, which would otherwise introduce parasitic inductance that degrades high-frequency attenuation. The integrated bus bar connection also ensures that the filter and infeed module share a common PE reference plane, a critical requirement for maintaining the integrity of the common-mode suppression network.

Thermal design relies on natural convection through the filter’s vented housing. The inductor windings are vacuum-impregnated with Class F insulation (155 °C rated), providing a thermal margin of approximately 115 °C above the maximum ambient specification. This margin accommodates the additional temperature rise from harmonic loading in installations where the supply network has elevated total harmonic distortion (THD >5%).

System Integration Benefits

• IEC/EN 61800-3 C2 Compliance Without External Components: The filter is sized and characterized specifically for the S120 booksize infeed current ratings, eliminating the engineering effort of selecting and validating a generic third-party filter against the drive’s actual emission profile.
• Zero Additional Cabinet Depth: The booksize form factor adds no depth to the drive line-up. The filter occupies only its rated width in the horizontal bus bar arrangement, preserving cabinet layout integrity in space-constrained machine tool and packaging machine enclosures.
• Deterministic Infeed Impedance: By presenting a defined source impedance to the ALM or SLM, the filter stabilizes the voltage regulation loop of the infeed module, reducing DC link voltage ripple and improving torque consistency across all connected motor modules.
• Protection of Co-located Instrumentation: Conducted emission suppression prevents high-frequency noise from coupling into 4–20 mA analog signal loops, PROFIBUS DP, PROFINET, and EtherCAT fieldbus segments sharing the same cabinet or cable tray infrastructure.
• Encoder Signal Integrity: Reducing common-mode noise on the supply bus lowers the noise floor on DRIVE-CLiQ encoder feedback lines, which is particularly significant in high-resolution absolute encoder applications where position error budgets are measured in arc-seconds.
• Simplified CE Marking Documentation: Using a Siemens-characterized filter with the S120 system allows the machine builder to reference Siemens’ Declaration of Conformity for the drive system as a whole, rather than conducting independent EMC testing of the complete drive assembly.
• Reduced Nuisance RCD Tripping: The Y-capacitor network provides a defined, predictable leakage current path to PE. While this requires a minimum PE conductor cross-section, it eliminates the unpredictable leakage current spikes that unfiltered drives impose on residual current devices (RCDs) in the upstream distribution board.
• Compatibility with Regenerative Infeed: The filter is fully compatible with the S120 Active Line Module’s regenerative braking operation. During energy return to the grid, the filter attenuates the harmonic content of the regenerated current waveform, maintaining power quality compliance during both motoring and regenerating modes.
• Long-term Reliability in Harsh Environments: Passive construction with no electrolytic capacitors or active components means the filter’s performance characteristics do not degrade with operating hours. The X2/Y2 capacitor classes are self-healing under transient overvoltage, maintaining filter integrity after voltage surge events.

Quality Assurance & Global Logistics

Every unit of the Siemens 6SL3000-0CE15-0AA0 supplied by siemensplc.com is sourced through verified channels and subjected to a structured pre-shipment inspection protocol. Authenticity is confirmed by cross-referencing the unit’s serial number and date code against Siemens’ product identification standards, including holographic label verification and housing mold mark inspection. Connector housings, terminal block torque ratings, and bus bar contact surfaces are physically inspected for mechanical integrity.

Units are dispatched from our warehouse in Xiamen, China — a major logistics hub with direct access to DHL Express, FedEx International Priority, and UPS Worldwide Expedited services. Standard international transit time to Europe is 3–5 business days; to North America, 4–6 business days; to Southeast Asia, 1–3 business days. All shipments include full commercial invoice documentation, packing list, and HS code classification (HS 8537.10) to facilitate smooth customs clearance. Anti-static packaging with foam-in-place cushioning and moisture barrier bags is standard for all drive components. A 12-month warranty covers manufacturing defects from the date of shipment.

Contact Information

Email: [email protected]
WhatsApp: +86 18359268345
Web: siemensplc.com
Location: Xiamen, China
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