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      6SL3351-1AE37-5BA1

      SINAMICS 745 A Replacement Power Block for Rectifier and U Phase
      In Stock
      Ships by Thursday, November 12
      Fast Shipping Available
      Product image is representative; revision or series may vary. Contact us to request a specific version.

      Product Describe：

      Siemens 6SL3351-1AE37-5BA1 is a SINAMICS 745 A replacement power block containing the rectifier and U-phase sections for a 380-480 V AC Drive/Power Module. It restores the input conversion stage and one inverter phase in the matching drive assembly.

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      Technical specifications for 6SL3351-1AE37-5BA1

      • Manufacturer:
        Siemens
      • Product Category:
        Servo Drives
      • Spare Part Number:
        6SL3351-1AE37-5BA1
      • Estimated shipping dimensions:
        37.4x27x9.5cm
      • Weight:
        3.1 kg
      • Tariff Code:
        85049090
      • Counliy of origin:
        Germany
      • Product type:
        Replacement power block
      • Supply system:
        3 AC
      • Voltage range:
        380-480 V
      • Line frequency:
        50/60 Hz
      • Rated current:
        745 A
      • Power section:
        Rectifier and U phase
      • Module finish:
        Painted
      • Busbar finish:
        Nickel-plated
      • Export classification:
        AL:N / ECCN:EAR99H
      • Quantity unit:
        1 piece
      View as PDF Ask for Quote

      Information

      Overview Manuals Common Applications Product Precautions
      Siemens 6SL3351-1AE37-5BA1 is a SINAMICS 745 A replacement power block containing the rectifier and U-phase sections for a 380-480 V AC Drive/Power Module. It restores the input conversion stage and one inverter phase in the matching drive assembly.
      • Combines the rectifier power section with the U-phase inverter section for the specified drive execution
      • Carries the documented 745 A conversion path for a 380-480 V three-phase power module
      • Retains painted power assemblies in the identified replacement configuration
      • Provides nickel-plated busbar interfaces for the specified power interconnections

      6SL3351-1AE37-5BA1 is installed with matching SINAMICS AC Drive/Power Module chassis, documented rectifier and U-phase busbar positions, approved gate-drive and control connections, installed cooling and protective-conductor arrangement in the approved SINAMICS AC Drive/Power Module arrangement.

      Discharge the drive DC link and document the incoming rectifier and U-phase connections before exchanging 6SL3351-1AE37-5BA1. Restore busbar hardware, control interfaces, cooling and protective bonding exactly to the approved drive arrangement.

      Important Notice: Confirm 6SL3351-1AE37-5BA1 and the rectifier/U-phase position from the physical marking before removal. Preserve the documented connections and complete the controlled commissioning checks before service.

      6SL3351-1AE37-5BA1 Engineering Documents
      Apter Power 6SL3351-1AE37-5BA1 Rectifier/U Technical Dossier PDFApter Power 6SL3351-1AE37-5BA1 Input-Stage Commissioning Guide PDF
      The first document consolidates the exact article record and engineering data. The second provides a separate installation, safety or commissioning reference for the identified hardware function.
      Rectifier/U phase-section restorationRestores the named input-conversion and inverter sections while preserving the installed phase topology.
      Heavy-duty AC drive maintenanceReturns the documented 745 A rectifier path to service after controlled discharge and connection checks.
      High-current converter cabinet serviceSupports cabinet renewal where the painted assembly and nickel-plated conductor execution must match.
      Controlled input-stage recommissioningProvides a structured route for input-phase, DC-link and U-phase validation before motor enablement.
      Before work, verify 6SL3351-1AE37-5BA1 against the installed SINAMICS AC Drive/Power Module power hardware and follow the applicable Siemens isolation and commissioning procedure.
      1Confirm 6SL3351-1AE37-5BA1 and the rectifier/U-phase position from the physical marking before removal.
      2Isolate the mains supply and verify the complete DC-link discharge interval before opening the power section.
      3Label incoming phases, DC-link conductors, U-phase output, sensors and gate-drive connectors before disconnection.
      4Use ESD controls and protect the semiconductor and control interfaces during handling.
      5Inspect nickel-plated busbar faces, insulators and fastening hardware before reassembly.
      6Match the painted 745 A, 380-480 V execution to the installed AC Drive/Power Module.
      7Apply power through the approved start-up sequence and review rectifier and phase diagnostics.
      8Validate input conversion and U-phase output under controlled conditions before motor release.

      Alternative Names

      6SL33511AE375BA1

      Technical notes

      Discharge the drive DC link and document the incoming rectifier and U-phase connections before exchanging 6SL3351-1AE37-5BA1. Restore busbar hardware, control interfaces, cooling and protective bonding exactly to the approved drive arrangement.

      FAQ View All FAQ

      • Which power sections are contained in 6SL3351-1AE37-5BA1?
        It is the Siemens replacement power block for the rectifier and U-phase sections of the specified AC Drive/Power Module.
      • Which mains execution is specified for 6SL3351-1AE37-5BA1?
        The matching drive execution is 380-480 V three-phase at 50/60 Hz with a 745 A rating.
      • What isolation sequence applies before replacing 6SL3351-1AE37-5BA1?
        Isolate incoming power, secure the drive against reconnection and prove the DC link discharged before touching the rectifier or phase connections.
      • Which conductors must be identified before removing 6SL3351-1AE37-5BA1?
        Identify incoming phases, DC-link conductors, U-phase output, gate-drive connections, sensors and protective bonding.
      • How should the nickel-plated busbars on 6SL3351-1AE37-5BA1 be handled?
        Keep contact faces clean, inspect insulators and reuse only the documented fastening arrangement for the drive execution.
      • Can 6SL3351-1AE37-5BA1 substitute for a V/W-phase power block?
        No; this article is identified for the rectifier and U-phase function and must remain in the matching position.
      • How is 6SL3351-1AE37-5BA1 commissioned after installation?
        Restore the approved power connections, energize in a controlled sequence and verify rectifier diagnostics and U-phase output response.
      • Which evidence should be saved after servicing 6SL3351-1AE37-5BA1?
        Save the identity, phase and busbar record, insulation and connection checks, diagnostic state and controlled test result.
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