What to check when a new three-phase inverter line launches: A launch-season evaluation routine for distributor-facing installers.
Every launch season brings new three-phase inverter lines with familiar specs and unfamiliar behaviour. Evaluating them the same way every time keeps your standard quotes trustworthy.
Evaluation routine
- Read the full datasheet, not the landing page, especially efficiency at part load.
- Check local grid-code certificates before committing to a project pipeline.
- Ask your distributor about spare-parts availability and firmware update policy.
Standardise the evaluation into a one-page form per product. The second launch of the year will take half the time of the first.
| Evaluation Criterion | Datasheet & Certificate Benchmark | Commercial Three-Phase Line Examples |
|---|---|---|
| MPPT string current & startup V_dc | Max input current >= 30–40 A per MPPT (for 182/210 mm cells); startup <= 180–200 V | Huawei SUN2000-12K/40K/50K/215KTL, Fox ESS T-Series (G3) & P3/H3-Pro, Solis C&I |
| Iberian grid-code compliance | Spain NTS 631 Type A/B + UNE 217002 (anti-islanding); Portugal DGEG / EN 50549-1 | Mandatory downloadable PDF certificates on PV-PARTNER product pages before quoting |
| Asymmetric phase feeding & backup | 100% unbalanced three-phase output capability + integrated PID recovery / AFCI | Huawei SUN2000-MAP0 (5K–12K) + SmartGuard-63A, Deye SUN-10K/12K-SG05LP3 |
B2B Technical Documentation & Pallet Dispatch Desk
Access official manufacturer datasheets, EU grid certificates, and full-pallet trade pricing across Spain and Portugal.
Frequently Asked Questions (FAQ)
Where can I check real-time B2B stock and pallet quantities?+
Log in to your PV-PARTNER installer account or contact our sales engineering desk for immediate stock and pallet quotes.
Are official manufacturer datasheets and grid certificates included?+
Yes, all tier-1 solar panels, inverters, and batteries in our catalog carry downloadable datasheets and European compliance certificates.
How do I request a custom B2B quote for a commercial or multi-pallet project?+
Use the Request Project Quote button to reach our team on the Contact page or call our Spain and Portugal support lines directly.
Author: Virginie Paulo (Senior PV Distribution & Regulatory Specialist) · Technical review: Hendryk Knuth (Technical Director, PV-PARTNER / YOFI SUN S.L.) · Regulatory & technical verification date: 4 November 2026. Prepared with AI-assisted drafting and verified against primary BOE, DGEG, and manufacturer documentation.