Indicative reference prices only — final quote per specification & quantity. Illustrative scenarios, not completed customer cases.
Scope: 1 power unit P-B-001864 (board V3), serial-verified + bench-test video
Scope: 5 units + matching driver boards BP007139, EPC surplus with purchase evidence
Scope: FF450R17ME4-class IGBT modules + gate drivers per BOM, genuine sourced
Sungrow SG320HX Boost Power Unit — OEM Spare Supply: P-B-001864 · Board P-B-001760_V3
Restore tripped SG320HX / SG350HX / SG333HX / SG285HX string units. APEX Export sources the boost power unit assembly P-B-001864 (hardware board P-B-001760_V3) — every unit label-verified and serial-matched against your inverter nameplate before dispatch.
P-B-001864 · P-B-001760_V3
Boost power unit assembly with hardware board V3 — verify the V3 revision on the label before ordering.
SG320HX · SG350HX · SG333HX · SG285HX
Same 1500V boost platform — unit is cross-compatible across the SG285-350HX family.
Power Unit Sourcing — Channel Comparison
| Parameter | Gray-Market "New Old Stock" | APEX-Verified Supply |
|---|---|---|
| Board revision | Unverified, mixed V1/V2/V3 | Label-locked to your fleet revision (V3 check) |
| Provenance | No paper trail | EPC surplus with purchase evidence, or serial-matched |
| Pre-dispatch test | None | Bench-test video per unit before payment |
| Documentation | None | CI + PL + test report with every shipment |
Technical FAQ: SG320HX Power Unit Replacement
Q: How do I confirm the correct power unit for my SG320HX?
Send a photo of one inverter nameplate plus the unit label. The part number P-B-001864, board revision P-B-001760_V3 and internal code BP007172 must all match your fleet — we verify each before quoting.
Q: Original units or repair-level components?
Both channels: EPC-surplus original units with purchase evidence, or genuine IGBT modules (Infineon / CRRC / StarPower class) plus gate drivers for in-house repair. Every unit ships with a bench-test video.
Q: How do I confirm the correct power unit for my SG320HX?
Send a photo of one inverter nameplate plus the unit label. The part number P-B-001864, board revision P-B-001760_V3 and internal code BP007172 must all match your fleet — we verify each before quoting.
Q: Original units or repair-level components?
Both channels: EPC-surplus original units with purchase evidence, or genuine IGBT modules (Infineon / CRRC / StarPower class) plus gate drivers for in-house repair. Every unit ships with a bench-test video.