Sevcon Gen4 634A46316 Controller
 |
Sevcon Gen 4 634A46316 is a high‑current (up to 350 A) brushless controller designed for 3‑phase AC induction or PMAC motors in battery‑powered traction and pump applications. Common failure points on this model include degraded power supply rails, faulty I/O modules, worn motor brushes on the associated drive, and overheating of the internal MOSFET array due to inadequate cooling. Begin diagnostics by verifying the input voltage and current against spec, inspecting all connector pins for corrosion or loose contacts, and reviewing any fault codes displayed on the Clearview panel; if no errors are present, check the temperature of the controller’s heat sink and confirm that the motor brushes remain free‑moving.[oss-gpt-20b] |
Need your Sevcon repaired or tested?
We specialize in the repair and refurbishment of high-end industrial control electronics and power systems like this unit.
- ⚙️ Fast Diagnostics – Same-day evaluation available
- 🔁 Reliable Turnaround – Most jobs ship within 5–10 business days
- 🧰 Expert Technicians – Decades of board-level experience
- ✅ 1-Year Warranty – Every repair fully guaranteed
📞 Call Now: 1 (336) 969-0110
Free Estimates • Industrial-grade testing • Nationwide Service
⚡ Call to Purchase AI Services — help us build the next Grace Blackwell GX10 node.
Industrial AI Hardware Recovery — Free Diagnostic • Pay Return Shipping Only
[oss-gpt-20b]We reclaim and repair GPUs and industrial AI hardware (cards, PSUs, fan modules, VRM boards). Free estimate — you only pay return shipping if you decline.
- 🔧 Board-level diagnostics (shorts, VRM, memory, fan, thermals)
- 🧪 Burn-in + benchmarks (hash/matrix, memtest, stability)
- ♻️ Option: donate failed cards for parts → we refurb + resell
- ✅ 1-Year warranty on completed repairs
Free Estimates • Industrial-grade testing • 1-Year Warranty • Nationwide Service
Other Repaired Units by Sevcon
Sevcon Gen4 634A46316 Controller Sevcon Millipak 633T45312 Controller Sevcon Millipak 633C23502 Controller Sevcon Millipak 633T45323 Controller Contact Us
🚑Shop Location🛠️
Industrial Electronic Repair
145 Rockwell Place Ct
Tobaccoville, NC 27050
🚑 Rush repair shipments only — no walk-ins.
📞Phone
📦Mailing Address🚛
Industrial Electronic Repair
931-E S. Main St #204
Kernersville, NC 27284
📦 Mailing Address (for invoices or shipped repairs)
No walk-ins accepted.