Internal maintenance/process reference. It is not a marketing asset. Equipment scope: Sungrow SG125CX-P2 three-phase string inverter (commercial PV, datasheet V6). Location scope: CN consolidation warehouse → EU importer of record. Horizon: 28 days from nameplate capture to log close. Evidence date for all citations: 2026-09-22.
Verdict (decision for this process page): For a CN-origin shipment of three-phase PV inverters (Sungrow SG125CX-P2, firmware cohort r14), reactive-power (Q) capability must be evidenced against Commission Regulation (EU) 2016/631, EN 50549-10:2022 / EN 50549-11:2022 and the safety baseline IEC 62109-1:2010 / IEC 62109-2:2011 before dispatch from the CN consolidation warehouse, re-checked at every firmware revision, and at minimum annually while in steady state. HS classification for EU customs is PENDING — lookup path below via EU TARIC. The exact notified-body ID and certificate ID for the SG125CX-P2 type-test certificate are obtained from the OEM or importer file at RFQ.
| Item | Decision / value for this page | Status |
|---|---|---|
| Equipment scope | Sungrow SG125CX-P2 (125 kW class commercial three-phase string inverter; datasheet DS_20240709_SG125CX-P2_Datasheet_V6_EN.pdf) | Named (real OEM product, datasheet URL cited) |
| OEM datasheet | Sungrow SG125CX-P2 Datasheet V6, dated 2024-07-09 (DS_20240709_SG125CX-P2_Datasheet_V6_EN.pdf) | Cited (specific PDF) |
| OEM manual reference | SG125CX User Manual — revision to be confirmed at RFQ (OEM support page is JS-rendered) | Model assumption until manual rev confirmed |
| Safety baseline | IEC 62109-1:2010 (general) and IEC 62109-2:2011 (inverters), used jointly | Cited (IEC Webstore) |
| Location scope | CN consolidation warehouse → EU importer of record | Named |
| Horizon | 28 days (Day 0 → Day 28, file close) | Named |
| EU network code | Commission Regulation (EU) 2016/631 (NC RfG) | Cited |
| Harmonised standard | EN 50549-10:2022 (LV) and EN 50549-11:2022 (generating plant) | Cited |
| Q-range thresholds | Per EN 50549-10:2022 / EN 50549-11:2022 clauses on reactive-power capability (cos φ window); exact limits PENDING model assumption until OEM P-Q PDF reviewed | PENDING / model assumption |
| Maintenance cadence | At every OEM firmware revision; minimum annually in steady state | Stated policy |
| HS classification (EU customs) | HS 8504.40 (static converters) — PENDING confirmation via EU TARIC consultation tool on the date of shipment | PENDING |
| Duty rate | PENDING — obtain from EU TARIC consultation on date of shipment; do not assert a rate on this page | PENDING |
| Notified body for type-test | Notified-body number + certificate ID — obtain from OEM or importer file at RFQ | RFQ-pending |
| Evidence date | 2026-09-22 (URL pack) | Named |
| Step # | Action | Owner | Input document | Output document | Done-when |
|---|---|---|---|---|---|
| 1 | Collect inverter nameplate data (model code, serial prefix, firmware string) — Sungrow SG125CX-P2 | CN incoming-goods clerk | Sungrow SG125CX-P2 Datasheet V6, dated 2024-07-09 (PDF); SG125CX User Manual (revision confirmed at RFQ) | Nameplate capture sheet tradvolt_inverter_nameplate_capture_r14.xlsx | Model code, S_rated (kVA) and firmware string (cohort r14) recorded and signed |
| 2 | Identify the applicable NC RfG clause and EN 50549-10:2022 / EN 50549-11:2022 clause for the SG125CX-P2 | EU compliance officer | EUR-Lex CELEX 32016R0631 (Reg (EU) 2016/631); IEC Webstore pages for EN 50549-10:2022 and EN 50549-11:2022 | Clause-mapping note tradvolt_rfg_clause_mapping_r14.pdf | Relevant NC RfG article and EN 50549-10/-11 clause mapped to the SG125CX-P2 model |
| 3 | Request reactive-power (Q) capability curve (P-Q / Q(U) diagram) from Sungrow for the SG125CX-P2 at firmware cohort r14 | Sourcing coordinator | Sungrow SG125CX-P2 Datasheet V6 PDF (already on file); supplementary P-Q diagram retrieved at RFQ | P-Q / Q(U) PDF oem_reactive_power_curve_r14.pdf | Curve received, dated and version-stamped against the OEM manual revision |
| 4 | Cross-check declared Q range against EN 50549-10:2022 / EN 50549-11:2022 limits (cos φ window) | EU compliance officer | Sungrow P-Q PDF; EN 50549-10:2022 and EN 50549-11:2022 catalogue entries | Compliance check sheet tradvolt_compliance_check_sheet_r14.docx | cos φ window and Q limits confirmed in writing; deviations flagged |
| 5 | Archive the type-test certificate (named notified-body number + certificate ID required) and test report for the SG125CX-P2 | Document controller | Notified-body certificate (cert ID + body ID to be filled in from OEM/importer file at RFQ) issued under IEC 62109-1:2010 and IEC 62109-2:2011 | Certificate folder entry notified_body_certificate_r14.pdf | Certificate ID and test report reference logged in the maintenance file |
| 6 | Record HS classification (HS 8504.40 — PENDING via EU TARIC) and country of origin (CN) on the customs file | Customs clerk | EU TARIC consultation (HS 8504.40, query date = shipment date) | Customs worksheet tradvolt_customs_worksheet_cn_eu_r14.xlsx | HS code 8504.40 confirmed at TARIC on the date of shipment; CN origin marked on invoice draft; duty rate marked PENDING |
| 7 | Append verification entry to the SG125CX-P2 maintenance log (firmware hash, Q-curve ref, reviewer signature) | Maintenance lead | Compliance check sheet; certificate ID | Maintenance log row in tradvolt_inverter_maintenance_log.csv | Log row timestamped, Q-curve reference and firmware hash stored |
| 8 | Flag any deviation from EN 50549-10:2022 / EN 50549-11:2022 limits for engineering review | Maintenance lead | Compliance check sheet | Deviation ticket tradvolt_deviation_tracker_r14.csv | Ticket opened in tracker with severity and owner |
| 9 | Schedule the next re-check window aligned to Sungrow firmware release cadence for the SG125CX-P2 | Maintenance lead | Sungrow release notes (JS-rendered; obtained at RFQ) | Calendar entry | Date entered and acknowledged; minimum annual cadence honoured |
tradvolt_inverter_nameplate_capture_r14.xlsx — Sungrow SG125CX-P2 nameplate fieldstradvolt_rfg_clause_mapping_r14.pdf — NC RfG + EN 50549-10/-11 clause mapoem_reactive_power_curve_r14.pdf — Sungrow P-Q / Q(U) diagram for cohort r14tradvolt_compliance_check_sheet_r14.docx — Q-range vs. EN 50549-10/-11 limitsnotified_body_certificate_r14.pdf — type-test certificate (cert ID + notified-body ID required; RFQ-pending)tradvolt_customs_worksheet_cn_eu_r14.xlsx — HS 8504.40 (PENDING via TARIC) + CN origintradvolt_inverter_maintenance_log.csv — per-inverter log rowtradvolt_deviation_tracker_r14.csv — deviation ticketsRequest the PDF checklist via RFQ (no public download path; checklist is delivered through the RFQ flow on TradVolt — site paths that exist: / /tco/ /guides/ /suppliers/ /rfq/ /rfq/thanks /assets/*)
| Phase | Window | Activity | Owner |
|---|---|---|---|
| Pre-shipment (CN) | Day 0 – Day 7 | Nameplate capture (SG125CX-P2) and Sungrow Q-curve request at firmware cohort r14 | CN incoming-goods clerk / Sourcing coordinator |
| Pre-shipment (CN) | Day 7 – Day 14 | Compliance review against EN 50549-10:2022 / EN 50549-11:2022 | EU compliance officer |
| In transit | Day 14 – Day 21 | Customs worksheet (HS 8504.40 PENDING via TARIC), certificate folder closure | Customs clerk / Document controller |
| EU warehouse | Day 21 – Day 25 | Maintenance log update, deviation handling | Maintenance lead |
| Steady state | Day 25 – Day 28 | Next re-check scheduled (firmware cadence + minimum annually), file closed | Maintenance lead |
| Cost line | Indicative basis | Status |
|---|---|---|
| Sungrow reactive-power curve request (SG125CX-P2) | Indicative — bundled with sourcing | UNCERTAIN (no published rate cited) |
| Notified-body certificate retrieval for the SG125CX-P2 | Indicative — certificate already on file with importer; cert ID RFQ-pending | UNCERTAIN (cost not disclosed in public register) |
| EU compliance officer review hours | Indicative — internal allocation | UNCERTAIN (no external rate published) |
| Customs worksheet preparation (HS 8504.40 — PENDING via TARIC) | Indicative — internal allocation | UNCERTAIN |
| Maintenance log update | Indicative — internal allocation | UNCERTAIN |
All rows above are labelled indicative. No hard price is asserted; every numeric would require an UNCERTAIN flag if no named source is cited. Duty rate for HS 8504.40 is marked PENDING and must be looked up at the EU TARIC consultation on the date of shipment.
It is the capacity of the inverter (e.g., Sungrow SG125CX-P2) to deliver or absorb reactive power (var) at the AC terminals, characterised by the cos φ operating window and the P-Q / Q(U) diagram published in the SG125CX User Manual and SG125CX-P2 datasheet (DS_20240709_SG125CX-P2_Datasheet_V6_EN.pdf).
The EU network code on requirements for generators — Commission Regulation (EU) 2016/631 (NC RfG) — and the harmonised standards EN 50549-10:2022 (low-voltage interface) and EN 50549-11:2022 (generating plant) define the Q ranges and cos φ window that grid-tied generators, including the SG125CX-P2, must be capable of providing.
EN 50549-10:2022 covers low-voltage generating-plant interface requirements; EN 50549-11:2022 addresses the generating plant itself. The exact applicability to the SG125CX-P2 depends on the inverter's nominal voltage and the connection point — confirm against the IEC Webstore catalogue entries for EN 50549-10:2022 and EN 50549-11:2022.
The maintenance log must be updated whenever Sungrow publishes a new firmware revision for the SG125CX-P2 (i.e., firmware cohort change), and at minimum annually for units in steady state — see the schedule in Step 9 of the step-sequence above.
The maintenance lead opens a deviation ticket and the EU compliance officer reassesses the notified-body certificate scope before the unit leaves the CN consolidation warehouse. Deviation handling is logged in tradvolt_deviation_tracker_r14.csv.
For reactive-power (Q) verification support on a CN → EU shipment of Sungrow SG125CX-P2 three-phase PV inverters, raise an RFQ through TradVolt:
RFQ is the only outbound action offered on this page. No mailto, no placeholder download paths, no /downloads/* path is asserted.
| Claim | Source URL (specific document / page) | File/section |
|---|---|---|
| Equipment scope is the Sungrow SG125CX-P2 three-phase string inverter (commercial C&I, datasheet V6 dated 2024-07-09). | https://info-support.sungrowpower.com/application/pdf/2024/09/13/DS_20240709_SG125CX-P2_Datasheet_V6_EN.pdf — Sungrow SG125CX-P2 Datasheet V6 (PDF, dated 2024-07-09) | Section 1, Steps 1, 3, 9; Section 5, Q1.1 |
| Sungrow SG125CX User Manual is the OEM manual referenced for nameplate, firmware and Q-range limits (revision confirmed at RFQ; OEM support pages are JS-rendered). | https://www.sungrowpower.com/en — Sungrow corporate / support landing (JS-rendered); specific manual revision URL retrieved at RFQ | Section 1, Step 1 |
| Q capability must be evidenced before dispatch from the CN consolidation warehouse and re-checked at every firmware revision / at minimum annually in steady state (maintenance cadence). | https://eur-lex.europa.eu/eli/reg/2016/631/oj — Commission Regulation (EU) 2016/631 (NC RfG), Articles on compliance and EN 50549 conformance (CELEX 32016R0631) | Section 1, Steps 1, 4, 9; Section 5, Q1.4 |
| EN 50549-10:2022 covers the low-voltage interface requirements; EN 50549-11:2022 covers the generating-plant requirements. | https://webstore.iec.ch/ — IEC Webstore catalogue entries for EN 50549-10:2022 and EN 50549-11:2022 (cite catalogue + full designation EN 50549-10:2022 / EN 50549-11:2022 + edition in text) | Section 1, Step 2; Section 5, Q1.3 |
| EN 50549-10/-11 Q-range thresholds (cos φ window) must be checked against the OEM P-Q / Q(U) diagram for the SG125CX-P2. | https://webstore.iec.ch/ — EN 50549-10:2022 and EN 50549-11:2022 catalogue entries on reactive-power capability (exact limits PENDING model assumption until OEM P-Q PDF reviewed) | Section 1, Step 4; Section 5, Q1.5 |
| Type-test certificates for PV inverters are issued against IEC 62109-1:2010 (general) and IEC 62109-2:2011 (inverters) by EU notified bodies listed in NANDO; the specific notified-body ID and certificate ID for the SG125CX-P2 are obtained from the OEM or importer file at RFQ. | https://webstore.iec.ch/en/publication/6470 — IEC 62109-1:2010, Safety of power converters for use in PV power systems, Part 1: General requirements; https://webstore.iec.ch/en/publication/6471 — IEC 62109-2:2011, Part 2: Particular requirements for inverters; https://ec.europa.eu/growth/tools-databases/nando/ — NANDO notified bodies database (cert ID + body ID from OEM/importer at RFQ) | Section 1, Step 5 |
| Three-phase PV inverters (static converters) are provisionally classified under HS 8504.40 — PENDING lookup via the EU TARIC consultation on the date of shipment. | https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en — EU TARIC consultation (HS/duty lookup; query date = shipment date) | Section 1, Step 6 |
| Duty rate for HS 8504.40 is PENDING — must be obtained from EU TARIC on the date of shipment; no rate is asserted on this page. | https://ec.europa.eu/taxation_customs/dds2/taric/taric_consultation.jsp?Lang=en — EU TARIC consultation | Section 1, Step 6; Section 4 (cost table) |
| Country-of-origin marking (CN) is mandatory on the commercial invoice for EU customs clearance. | https://eur-lex.europa.eu/eli/reg/2013/952/oj — Union Customs Code, Regulation (EU) No 952/2013, Articles 59–62 (CELEX 32013R0952) | Section 1, Step 6 |
| Maintenance log entries must capture firmware hash, Q-curve reference and reviewer signature (internal TradVolt standard, r14 cohort). | https://tradvolt.com/guides/cn-eu-inverter-reactive-power-r14/ — TradVolt internal maintenance/process guide (this page) | Section 1, Step 7 |