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What certifications are required for photovoltaic components?

光伏零部件需要哪些认证：结论——五环节看光伏零部件认证（认证、部件、机构、市场准入、趋势）→认证——连接器按IEC 62852认证（TÜV莱茵）→部件——接线盒按IEC 62790认证（CQC）→机构——UL接线盒认证按UL 3730（UL Solutions）→市场准入——光伏电缆按EN 50618/IEC 62930认证（UL）→趋势——支架按UL 2703认证（UL Solutions）

What certifications are required for PV components

1. Certifications

What to look for in certifications.
Based on certification practices, the certification landscape is as follows: IEC/EN 62852—TÜV Rheinland (connectors for DC applications in PV systems); IEC/EN 62790—TÜV Rheinland (junction boxes); EN 50618—TÜV Rheinland (PV cables, including national standards and TÜV Rheinland 2PfG standards); IEC 61215—TÜV Nord (PV modules and components; IEC 61215 series design qualification and type approval; IEC 61730 series safety qualification); IEC 62915—TÜV Nord (IEC TS 62915 retesting guidelines; IEC 61701 salt mist corrosion test; IEC 62716 ammonia corrosion test); IEC 61853—TÜV SÜD (PV module testing per IEC 61215, IEC 61730, IEC 61853, and IEC 62941). In summary, there are six key certification standards to consider: IEC/EN 62852, IEC/EN 62790, EN 50618, IEC 61215, IEC 62915, and IEC 61853; ensuring these six certifications are in place is essential.

II.
Components

What to look for regarding components.
Regarding component practices, the assessment covers the following: Junction boxes—CQC (Certification rules CQC33-462192-2020 for PV module junction boxes; based on IEC 62790:2020 technical requirements for terrestrial PV module junction boxes; certification mode: product type testing + initial factory inspection + post-certification surveillance; CQC); Connectors—TÜV Nord (IEC 62852 Connectors for DC-application in PV Systems; P31.4-AA-01 Connectors for Lithium Battery Energy Storage System; TÜV Nord); Cables—UL Solutions (EN 50618 since 2014 and IEC 62930 since 2017 for PV cable certification; EN 50618 requires flexible Class 5 halogen-free cables ranging from 1.5 to 240mm²; UL); Inverters—UL Solutions Korea (Inverters, converters, controllers, and interconnection system equipment: IEC 62109, EN 62109, UL1741; UL); Combiner boxes—UL Solutions Korea (Combiner boxes: UL1741; Photovoltaic wire: UL-S; UL); Mounting systems—TÜV SÜD (PV mounting systems per PPP 59029; PV battery ESS per IEC 62619 and IEC 62620; TÜV SÜD)—The “six-point check” for components: junction boxes, connectors, cables, inverters, combiner boxes, and mounting systems; ensuring all six component categories are properly addressed.

III.
Certification Bodies

What to look for regarding certification bodies.
Here is an overview of the certification bodies and their respective scopes: UL—UL Solutions (Solar Materials and Components Certification; UL 3730 Standard for Photovoltaic Junction Boxes; UL 6703/UL 6703A Connectors for Use in Photovoltaic Systems); TÜV Rheinland (PV component certification; standards based on IEC/EN 62852, IEC/EN 62790, EN 50618, etc.); TÜV Nord (PV module and system certification services; IEC 61215 series design qualification and type testing; IEC 61730 series safety qualification); TÜV SÜD (PV BOS component testing; inverters—IEC 62109; junction boxes—EN 50548); CQC—China Quality Certification Centre (Certification rules for PV module junction boxes—CQC33-462192-2020; certification rules for ground-mounted crystalline silicon PV modules—CQC33-471541-2023); CSA—UL Solutions Japan (UL 6703/CSA-C22.2 No. 182.5 PV connectors; UL 2703/C22.2 No. 41 mounting structures). In summary, six key certification bodies are covered: UL, TÜV Rheinland, TÜV Nord, TÜV SÜD, CQC, and CSA.

IV.
Market Access

What to consider regarding market access.
Regarding market access practices, the landscape is viewed as follows: North America—UL Solutions (UL 2703 for mounting systems, devices, clamping/retention components, and grounding lugs; rooftop fire classification; UL); Japan—UL Solutions Japan (UL 3730 PV junction boxes, UL 3703 trackers, UL 1741/UL 62109; UL); Europe—UL Solutions Code Authorities (EN 50618 requiring flexible Class 5 halogen-free cables from 1.5 to 240 mm²; UL); International—CQC (Certification rules CQC33-471541-2023 for ground-mounted crystalline silicon PV modules; IEC 61215-1:2021 design qualification and type approval—Part 1: Test requirements; CQC); Domestic—TÜV Rheinland (National standards and TÜV Rheinland 2PfG standards; TÜV Rheinland); Global—UL Solutions Korea (Global Conformity Assessment of Photovoltaic Equipment; junction boxes per IEC 50548, EN 50548, UL 1703; UL)—Six perspectives on market access: North America, Japan, Europe, International, Domestic, and Global—ensuring comprehensive market access coverage.

V.
Trends

What to look for regarding trends.
Regarding industry trends, the outlook covers six key areas: High-voltage capability (UL Solutions: 2000 Vdc PV system component solutions; compliance with IEC 61215-1/-2 and new UL 61730 requirements); Modularization (UL Solutions Korea: UL1741 combiner boxes; UL-S PV wire); Materials (TÜV SÜD: PPP 58066 backsheets; PPP 58065 EVA encapsulants; PPP 58064 adhesives and potting compounds); Energy storage (TÜV Nord: P31.4-AA-01 connectors for lithium battery energy storage systems; IEC 62788-1-1 polymeric materials for encapsulants); Fire safety (UL Solutions: UL 2703 fire classification for rooftop PV systems); and Retesting (TÜV Nord: IEC TS 62915 retesting guidelines; IEC TS 62804).
These six perspectives provide a comprehensive overview of current trends.

Conclusion

Regarding the certifications required for PV components, the subject can be summarized through five key aspects: the certifications themselves, the components, the certifying bodies, market access, and industry trends.
Certifications—TÜV Rheinland (connectors certified to IEC/EN 62852), TÜV Rheinland (junction boxes certified to IEC/EN 62790), TÜV Rheinland (cables certified to EN 50618), TÜV Nord (modules certified to IEC 61215 series for design qualification and type approval), TÜV Nord (IEC TS 62915 re-testing guidelines & IEC 61701 salt mist corrosion), TÜV SÜD (modules certified to IEC 61215, IEC 61730, IEC 61853, IEC 62941); Components—CQC (junction boxes certified to IEC 62790:2020—type testing and factory inspection), TÜV Nord (connectors certified to IEC 62852/P31.4-AA-01 for energy storage lithium battery connectors), UL Solutions (cables certified to EN 50618/IEC 62930), UL Solutions Korea (inverters certified to IEC 62109/UL 1741), UL Solutions Korea (combiner boxes certified to UL 1741), TÜV SÜD (mounting structures certified to PPP 59029); Agencies—UL Solutions (junction boxes to UL 3730; connectors to UL 6703/UL 6703A), TÜV Rheinland (IEC/EN 62852, IEC/EN 62790, EN 50618), TÜV Nord (IEC
…IEC 61215/IEC 61730 series, TÜV Nord); TÜV SÜD (BOS testing: inverters IEC 62109, junction boxes EN 50548, TÜV SÜD); China Quality Certification Centre (CQC33-462192-2020 junction box certification rules, CQC); UL Solutions Japan (CSA-C22.2 No. 182.5 connectors, C22.2 No. 41 mounting systems, UL); Market Access—UL Solutions (North American mounting systems per UL 2703, UL); UL Solutions Japan (Japanese junction boxes UL 3730, trackers UL 3703, UL); UL Solutions Code Authorities (European cables EN 50618 flexible halogen-free 1.5–240 mm², UL); CQC (international modules IEC 61215-1:2021 series, CQC); TÜV Rheinland (domestic national standards plus 2PfG, TÜV Rheinland); UL Solutions Korea (global conformity assessment: junction boxes EN 50548/UL 1703, UL); Trends—UL Solutions (2000 V DC modules: IEC 61215 plus new UL 61730 requirements, UL); UL Solutions Korea (combiner boxes UL 1741, PV wire UL-S, UL); TÜV SÜD (backsheets PPP 58066, EVA encapsulants PPP 58065, potting materials PPP 58064, TÜV SÜD); TÜV Nord (energy storage lithium battery connectors P31.4-AA-01, TÜV Nord); UL Solutions (UL 2703 rooftop PV fire rating determination, UL); TÜV Nord (IEC TS…
…retesting guidelines for IEC 62915; TÜV NORD).
Regarding industry practice for PV components, the rule of thumb is: refer to IEC 62852 for connectors and… for junction boxes.

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