Siemens A5E02822120 Rectifier Trigger Board | Replacement, Equivalent & Selection Guide
The Siemens A5E02822120 is a Rectifier Trigger Board designed for use in Siemens SINAMICS and SIMOREG drive systems. This board controls the firing angle of thyristors (SCRs) in the rectifier stage, directly governing DC bus voltage and drive output performance. When this board fails, the entire drive becomes inoperable — making fast, accurate sourcing critical for minimizing downtime.
At Konmask.com, we specialize in sourcing genuine and compatible industrial automation components, including hard-to-find Siemens drive repair parts like the A5E02822120.
Technical Specifications
- Part Number: A5E02822120
- Manufacturer: Siemens AG
- Component Type: Rectifier Trigger Board (Thyristor Firing Board)
- Compatible Drive Series: SINAMICS / SIMOREG DC Master
- Function: Controls SCR gate firing pulses for rectifier stage
- Form Factor: PCB assembly with connector interface
- Weight: Approx. 220 g
- Origin: Germany (Siemens AG)
- Condition: New / Refurbished available — specify at inquiry
Compatible Replacement & Equivalent Models
When the A5E02822120 is unavailable or lead times are unacceptable, engineers often evaluate the following alternatives. Always verify electrical and mechanical compatibility before substitution:
- Siemens A5E02822121 — Revised hardware revision; functionally equivalent in most SINAMICS configurations
- Siemens A5E03454171 — Successor trigger board used in later SINAMICS S120 rectifier units
- Siemens C98043-A7002-L1 — Legacy SIMOREG trigger board; compatible in older DC drive retrofits
- Third-party SCR firing boards — Available from repair specialists; require parameter matching and commissioning
Note: Cross-referencing must be validated against your drive’s firmware version and hardware revision. Contact Konmask for pre-sales compatibility verification.
Why Choose the Original Model
- Guaranteed firmware compatibility — OEM boards are pre-matched to Siemens drive firmware; no parameter re-mapping required
- Precise firing angle calibration — Factory-calibrated for optimal rectifier efficiency and harmonic performance
- Reduced commissioning time — Drop-in replacement with no additional tuning in most cases
- Warranty & traceability — Genuine Siemens parts carry full manufacturer traceability and quality documentation
- Long-term availability — OEM part numbers are supported through Siemens’ global spare parts network
Typical Applications
- SINAMICS DC Master (DCM) rectifier stage repair and overhaul
- SIMOREG 6RA70 / 6RA80 series drive maintenance
- Steel mill rolling line DC drive systems
- Paper machine winder and unwinder drive control
- Mining hoist and conveyor drive systems
- Marine propulsion and offshore platform drives
- Large pump and compressor variable speed drives
System Compatibility
- Siemens SINAMICS DCM — 6RA8025 / 6RA8031 / 6RA8075 / 6RA8085 / 6RA8095
- Siemens SIMOREG DC Master — 6RA7013 through 6RA7095 series
- Siemens SIMOREG K — 6RA2000 series (with adapter verification)
- Rectifier input voltage: 3AC 400 V / 480 V / 690 V (drive-dependent)
Confirm your drive’s exact catalog number and hardware revision (HW Rev.) before ordering. Konmask engineers can assist with compatibility checks.
Selection Guide
Use the following criteria to determine whether the A5E02822120 is the correct part for your application:
- Step 1 — Identify your drive: Locate the drive’s rating plate. Note the catalog number (e.g., 6RA8075-6DV62-0AA0) and hardware revision.
- Step 2 — Confirm board location: The rectifier trigger board is typically located in the power electronics section, adjacent to the thyristor stack.
- Step 3 — Match part number: Compare the board’s silk-screened part number against A5E02822120. Check for revision suffixes (e.g., -A1, -B2).
- Step 4 — Evaluate alternatives: If the exact revision is unavailable, consult Konmask for cross-reference validation before substituting.
- Step 5 — Specify condition: Indicate whether you require new OEM, factory-refurbished, or exchange unit to optimize cost and lead time.
Quality Assurance & Sourcing
- All units sourced from authorized Siemens distributors or certified repair centers
- Pre-shipment functional test available on request
- Anti-static packaging with humidity indicator card
- Full documentation: test report, certificate of conformity, packing list
- Traceability maintained from manufacturer to end customer
- Export compliance: ECCN classification and customs documentation provided
How to Order
- Online: Add to cart directly on this page — stock availability confirmed at checkout
- Email RFQ: Send your BOM or part list to [email protected]
- Phone / WhatsApp: +0086 19859288691 — speak directly with a drive parts specialist
- Lead time: In-stock items ship within 1–3 business days; ex-stock orders within 5–10 business days
- Payment: T/T, PayPal, credit card, and trade finance options available
Replacement & Compatibility FAQ
Q: Can I use A5E02822121 instead of A5E02822120?
A: In most cases yes — the -21 suffix indicates a hardware revision update. However, always verify against your drive’s service manual or contact Konmask for confirmation.
Q: Is a third-party trigger board a viable long-term replacement?
A: Third-party boards can work but require careful parameter matching and may void Siemens warranty. For critical production drives, OEM is strongly recommended.
Q: How do I know if the trigger board is the failed component?
A: Common symptoms include asymmetric phase firing, DC bus ripple faults, or F60xx fault codes on SINAMICS DCM. A Siemens-trained technician should confirm diagnosis before ordering.
Q: Do you offer exchange / repair service for A5E02822120?
A: Yes — Konmask partners with certified Siemens repair centers. Contact us with your failed unit for an exchange or repair quotation.
Q: What is the typical lead time for a new OEM unit?
A: New OEM units typically have 4–8 week lead times from Siemens. Konmask maintains buffer stock to offer faster delivery — contact us for current availability.
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