EMC Compliance for PV Inverters — Romania / EU?

Chinese PV inverters holding only GB/T 37408 EMC test reports do not satisfy EU EMC Directive 2014/30/EU requirements for the Romanian market. EU CE marking requires re-testing to EN 62920 and IEC 61000 series standards. Wireless-enabled inverters additionally require RED 2014/53/EU conformity. This is not legal advice; verify with a qualified EU notified body or accredited EMC laboratory.

Grid Interconnection Requirements for PV Inverters — Romania (ANRE / Transelectrica / 230 V 50 Hz)?

Chinese PV inverters certified only to GB/T 19964 and NB/T 32004 are NOT compliant for Romanian grid connection. Full re-testing to EN 50549-1 or EN 50549-2 (SR EN), EU RfG 2016/631, and ANRE/Transelectrica grid codes is required. Voltage nominal re-parameterisation and Romanian-language documentation are also required.

PV Inverter Electrical Safety & LVD CE Marking — Romania / EU (IEC 62109)?

Chinese PV inverters must obtain EU CE marking under LVD 2014/35/EU (EN 62109-1/-2) to be legally sold in Romania. GB/T 37408 and CCC test reports are insufficient. Engage an EU accredited test laboratory and prepare a Romania/EU-compliant technical file and Declaration of Conformity.

China-to-Romania PV Inverter Compliance Gap Matrix

GAP MATRIX

Compliance Gap Matrix

Gap matrix
Compliance item	Common China baseline	Romania (ASRO / ANRE / Transelectrica)	Gap / action	Source + verification date
EMC Compliance for PV Inverters — Romania / EU	GB/T 37408-2021 (Technical requirements and test methods for photovoltaic grid-connected inverters) includes EMC test requirements for PV inverters under Chinese standards. It is a recommended (推荐性) national standard. NB/T 32004-2018 (Technical specification for photovoltaic grid-connected inverters) also includes EMC provisions. However, GB/T 37408 EMC test methods and limits are not identical to EN 62920 / IEC 61000 series requirements, and Chinese test reports citing GB/T 37408 do not demonstrate conformity with EMC Directive 2014/30/EU for the Romanian/EU market.GB/T 37408-2021 — Technical requirements and test methods for photovoltaic grid-connected inverters (recommended national standard) NB/T 32004-2018 — Technical specification for photovoltaic grid-connected inverters	PV inverters placed on the Romanian market must comply with the EU EMC Directive 2014/30/EU, with CE marking and a Declaration of Conformity referencing applicable harmonised EMC standards. The primary harmonised standard is IEC 62920:2017 (EN 62920, adopted by ASRO as SR EN 62920) — EMC requirements for power conversion equipment for power interface with a DC input. Additionally, IEC 61000 series standards (EN 61000-3-2 harmonics, EN 61000-3-3 flicker, EN 61000-6-1/-2 immunity, EN 61000-6-3/-4 emissions) apply. If the inverter includes wireless communication modules (Wi-Fi, Bluetooth, cellular), the Radio Equipment Directive (RED 2014/53/EU) also applies and additional radio testing is required.EMC Directive 2014/30/EU IEC 62920:2017 / EN 62920 / SR EN 62920 (ASRO adoption) — EMC requirements for PV power conversion equipment EN 61000-3-2:2019 — Limits for harmonic current emissions EN 61000-3-3:2013+A1:2019 — Limitation of voltage changes, voltage fluctuations and flicker EN 61000-6-1:2019 / EN 61000-6-2:2019 — Generic immunity standards EN 61000-6-3:2007+A1:2011 / EN 61000-6-4:2007+A1:2011 — Generic emission standards RED 2014/53/EU (if wireless interfaces present)	Chinese PV inverters tested only to GB/T 37408 EMC requirements do not carry EU CE marking under EMC Directive 2014/30/EU. Re-testing to EN 62920 and relevant IEC 61000 standards by an EU-accredited EMC laboratory is required. If wireless modules are present, RED 2014/53/EU radio testing adds further requirements. Romanian market surveillance (ANPC) enforces EMC Directive compliance on imported products.[INFORMATIONAL] Chinese PV inverters holding only GB/T 37408 EMC test reports do not satisfy EU EMC Directive 2014/30/EU requirements for the Romanian market. EU CE marking requires re-testing to EN 62920 and IEC 61000 series standards. Wireless-enabled inverters additionally require RED 2014/53/EU conformity. This is not legal advice; verify with a qualified EU notified body or accredited EMC laboratory.	National Energy Regulatory Authority (ANRE), Romania2026-06-15 · reference
Grid Interconnection Requirements for PV Inverters — Romania (ANRE / Transelectrica / 230 V 50 Hz)	GB/T 19964-2024 (Technical requirements for connecting photovoltaic power station to power system, superseding GB/T 19964-2012) and NB/T 32004-2018 (Technical specification for photovoltaic grid-connected inverters) are the primary Chinese standards for PV grid connection. These are calibrated to China's 220/380 V 50 Hz grid, State Grid and Southern Grid connection rules, and Chinese anti-islanding thresholds. They do not address Romania's 230/400 V nominal voltage, EN 50549-1/-2 ride-through and reconnection profiles, ANRE CRED provisions, or Transelectrica CTET reactive-power requirements.GB/T 19964-2024 — Technical requirements for connecting photovoltaic power station to power system (recommended national standard) NB/T 32004-2018 — Technical specification for photovoltaic grid-connected inverters	PV inverters connecting to the Romanian grid must comply with EN 50549-1:2019 (low voltage, ≤16 A/phase, adopted as SR EN 50549-1 by ASRO) or EN 50549-2:2019 (medium voltage, SR EN 50549-2) for anti-islanding, voltage/frequency ride-through, reactive power capability, and reconnection. Commission Regulation (EU) 2016/631 (RfG) is directly binding for generating modules above ANRE-set thresholds. ANRE Order No. 30/2013 (Codul tehnic al rețelei electrice de distribuție, CRED) and Transelectrica grid code (CTET) specify national requirements. The Romanian grid nominal voltage is 230/400 V 50 Hz — China's nominal 220/380 V differs; inverters must be re-parameterised. IEC 61727:2004 and IEC 62116:2014 (anti-islanding) are referenced in grid-connection certification processes by Romanian DNOs.EN 50549-1:2019 / SR EN 50549-1 (ASRO adoption) EN 50549-2:2019 / SR EN 50549-2 (ASRO adoption) Commission Regulation (EU) 2016/631 — Requirements for Generators (RfG) ANRE Order No. 30/2013 — Codul tehnic al rețelei electrice de distribuție (CRED) Transelectrica — Codul tehnic al rețelei electrice de transport (CTET) IEC 61727:2004 — Photovoltaic (PV) systems – Characteristics of the utility interface IEC 62116:2014 — Utility-interconnected photovoltaic inverters – Test procedure of islanding prevention measures	Chinese PV inverters certified only to GB/T 19964 and NB/T 32004 are not validated for EN 50549-1/-2 (SR EN), EU RfG 2016/631, ANRE CRED, or Transelectrica CTET grid-interconnection requirements. Nominal voltage re-parameterisation from 220/380 V to 230/400 V is required and must be re-tested. Anti-islanding thresholds, reactive-power curves, and ride-through profiles per EN 50549-1 differ from Chinese equivalents. Romanian-language grid-connection application documentation is required by ANRE and DNOs.[INFORMATIONAL] Chinese PV inverters certified only to GB/T 19964 and NB/T 32004 are NOT compliant for Romanian grid connection. Full re-testing to EN 50549-1 or EN 50549-2 (SR EN), EU RfG 2016/631, and ANRE/Transelectrica grid codes is required. Voltage nominal re-parameterisation and Romanian-language documentation are also required.	Transelectrica SA (Romanian electricity transmission system operator)2026-06-15 · reference
PV Inverter Electrical Safety & LVD CE Marking — Romania / EU (IEC 62109)	GB/T 37408-2021 (Technical requirements and test methods for photovoltaic grid-connected inverters) and NB/T 32004-2018 include safety test requirements for Chinese PV inverters. CCC (China Compulsory Certification) may apply for certain product categories. Neither GB/T 37408 nor CCC certification is recognised in the EU as equivalent to EN 62109-1/-2 LVD CE marking. Chinese inverter safety test reports under these standards are not sufficient for Romanian/EU market placement.GB/T 37408-2021 — Technical requirements and test methods for photovoltaic grid-connected inverters (recommended national standard) NB/T 32004-2018 — Technical specification for photovoltaic grid-connected inverters CCC (China Compulsory Certification) — administered by CNCA (where applicable)	PV inverters placed on the Romanian market must carry CE marking under the EU Low Voltage Directive (LVD 2014/35/EU). The applicable harmonised safety standards are IEC 62109-1:2010 (Safety of power converters for use in photovoltaic power systems – Part 1: General requirements) and IEC 62109-2:2011 (Part 2: Particular requirements for inverters), adopted by ASRO as SR EN 62109-1 and SR EN 62109-2. A Declaration of Conformity and technical file referencing these standards is required. For higher-risk products, notified-body involvement may be required. Romanian market surveillance authority (ANPC) enforces LVD compliance on imported products.LVD 2014/35/EU — Low Voltage Directive IEC 62109-1:2010 / EN 62109-1 / SR EN 62109-1 (ASRO adoption) — Safety of power converters for PV systems – General requirements IEC 62109-2:2011 / EN 62109-2 / SR EN 62109-2 (ASRO adoption) — Safety of power converters for PV systems – Particular requirements for inverters	Chinese PV inverter safety test reports under GB/T 37408 / NB/T 32004 do not demonstrate EN 62109-1/-2 conformity for EU LVD CE marking in Romania. A complete EU technical file, Declaration of Conformity referencing SR EN 62109-1/-2, and accredited EU laboratory test reports are required. CCC does not substitute for EU CE marking. Romanian ANPC market surveillance may seize or withdraw non-CE-marked PV inverters.[INFORMATIONAL] Chinese PV inverters must obtain EU CE marking under LVD 2014/35/EU (EN 62109-1/-2) to be legally sold in Romania. GB/T 37408 and CCC test reports are insufficient. Engage an EU accredited test laboratory and prepare a Romania/EU-compliant technical file and Declaration of Conformity.	Romanian Standards Association (ASRO)2026-06-15 · reference

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AI-compiled, not human-verified. This comparison is generated and cross-checked by multiple AI models from public official sources; it has not been reviewed by a named human expert and may contain errors or out-of-date items. Confirm every requirement directly with the official regulator or standards body and a qualified professional before relying on it. Nothing here is legal, certification, customs, or market-access advice.

This page is an informational comparison aid, not a certification decision, legal opinion, notified-body assessment, customs determination, grid-operator approval, or market-access approval. Exporters and importers should verify current Romania (ASRO/ANRE/Transelectrica) requirements, EU CE directives, and destination-country requirements with qualified professionals before shipment or installation.

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National Energy Regulatory Authority (ANRE), Romania · accessed 2026-06-15 · reference · used in 1 rows
Transelectrica SA (Romanian electricity transmission system operator) · accessed 2026-06-15 · reference · used in 1 rows
Romanian Standards Association (ASRO) · accessed 2026-06-15 · reference · used in 1 rows