Allen-Bradley 170947/170948 129708-02 M003325108 Power Stage Interface Board | Replacement, Equivalent & Selection Guide
The Allen-Bradley 170947 / 170948 (129708-02, M003325108) Power Stage Interface Board is a critical drive interface component used in Rockwell Automation PowerFlex and legacy AB drive systems. This board serves as the communication bridge between the control logic stage and the power output stage, ensuring precise gate-drive signal transmission, fault feedback, and thermal protection coordination. Konmask.com supplies both genuine OEM units and verified compatible replacements to minimize downtime and reduce total cost of ownership.
Technical Specifications
- Part Numbers: 170947 / 170948 / 129708-02 / M003325108
- Manufacturer: Allen-Bradley / Rockwell Automation
- Board Type: Power Stage Interface Board (Gate Drive Interface)
- Function: Interfaces control board signals to IGBT/transistor power stage; carries PWM gate signals, fault feedback, and DC bus sensing
- Compatible Drive Series: PowerFlex 700 / 700H / 700S series (and select legacy AB drives)
- Voltage Range: Refer to drive nameplate; typically 380–690 VAC input
- Weight: Approx. 320 g
- Condition Available: New OEM, Refurbished, Compatible Replacement
- Warranty: 12 months (OEM); 6 months (refurbished/compatible)
Compatible Replacement & Equivalent Models
The following part numbers are known cross-references or functional equivalents for the 170947/170948 Power Stage Interface Board. Always verify connector pinout and firmware revision before substitution:
- 170947 — Primary OEM part number (Revision A)
- 170948 — Alternate OEM revision (Revision B / updated layout)
- 129708-02 — Rockwell internal assembly reference
- M003325108 — Manufacturer batch/lot code variant
- 20C-PM-xxx — PowerFlex 700 power module interface (verify frame size)
- Third-party compatible boards for PowerFlex 700 Frame 3–6 (contact Konmask for cross-reference verification)
⚠ Note: Always confirm hardware revision and drive frame size before ordering a replacement. Konmask technical support can assist with cross-reference validation.
Why Choose the Original Model
- Guaranteed Signal Integrity: OEM boards maintain precise PWM timing tolerances critical for IGBT protection and motor control accuracy.
- Firmware Compatibility: Original boards are pre-validated against Rockwell drive firmware versions, eliminating compatibility risk.
- Thermal & Fault Coordination: Factory-calibrated thermistor thresholds and fault logic ensure correct drive protection behavior.
- Regulatory Compliance: OEM parts maintain CE, UL, and RoHS compliance for regulated industries (food, pharma, utilities).
- Reduced Commissioning Time: Drop-in replacement with no parameter re-tuning required.
Typical Applications
- PowerFlex 700 / 700H / 700S AC drive repair and maintenance
- Industrial pump, fan, and compressor drive systems
- Conveyor and material handling drive refurbishment
- HVAC variable frequency drive (VFD) servicing
- Oil & gas, water treatment, and mining drive maintenance
- OEM machine builders requiring spare drive interface boards
System Compatibility
| Drive Series | Frame Size | Compatibility |
|---|---|---|
| PowerFlex 700 | Frame 3–6 | ✅ Confirmed |
| PowerFlex 700H | Frame 7–10 | ⚠ Verify revision |
| PowerFlex 700S | Frame 1–6 | ⚠ Verify revision |
| Legacy AB 1336 PLUS II | Various | ❌ Not compatible |
| PowerFlex 400 | All | ❌ Not compatible |
Contact Konmask support with your drive catalog number for definitive compatibility confirmation.
Selection Guide
Use the following criteria to select the correct Power Stage Interface Board:
- Step 1 — Identify Drive Catalog Number: Locate the full catalog number on the drive nameplate (e.g., 20B-D017A3AYNANC0).
- Step 2 — Confirm Frame Size: Frame size determines board form factor and connector layout. Check the drive manual or Rockwell’s Product Compatibility & Download Center (PCDC).
- Step 3 — Check Hardware Revision: The board revision (Rev A / Rev B) must match or be superseded by the replacement. Mixing incompatible revisions can cause fault codes F005, F012, or F063.
- Step 4 — Verify Firmware Version: Ensure drive firmware is compatible with the replacement board. Konmask can advise on known firmware/hardware revision pairings.
- Step 5 — Choose Supply Condition: Select New OEM for critical production lines; Refurbished for budget-sensitive maintenance; Compatible Replacement for legacy drives where OEM stock is discontinued.
Quality Assurance & Sourcing
- Source: Authorized distributors, OEM surplus, and verified third-party manufacturers
- Inspection: All boards undergo visual inspection, component-level verification, and functional bench testing prior to shipment
- Traceability: Batch records and test reports available upon request for regulated industries
- Packaging: Anti-static ESD packaging with moisture barrier; fragile component labeling
- Lead Time: In-stock items ship within 1–3 business days; sourced items 5–15 business days
How to Order
- Add to cart directly using part number 170947, 170948, 129708-02, or M003325108.
- For cross-reference verification or bulk pricing, contact support@konmask.com with your drive catalog number and required quantity.
- Provide your preferred condition (New / Refurbished / Compatible) and required lead time.
- Konmask will confirm availability, issue a proforma invoice, and arrange shipment via DHL / FedEx / SF Express.
Replacement & Compatibility FAQ
Q: Can I use 170948 to replace 170947?
A: In most cases yes — 170948 is the updated revision of 170947 and is backward compatible. However, confirm with your drive’s service manual or contact Konmask support.
Q: What fault codes indicate a failed Power Stage Interface Board?
A: Common fault codes include F005 (Overcurrent), F012 (HW Overcurrent), F063 (IGBT Desaturation), and F122 (Power Board Fault). A failed interface board may also cause the drive to not power up or display a blank HIM.
Q: Do I need to re-tune the drive after replacing this board?
A: No motor parameter re-tuning is required. However, verify that all drive parameters are backed up before replacement and restore them after installation.
Q: Is a compatible (non-OEM) board safe to use?
A: Konmask-supplied compatible boards are tested to meet OEM electrical specifications. They are suitable for non-safety-critical applications. For SIL-rated or regulated installations, OEM parts are recommended.
Q: Do you offer exchange / core return programs?
A: Yes. Contact us to discuss core exchange pricing for refurbished units.
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