Solar Compliance - Photovoltaic (PV) Module Certification under UL 61730
Transitioning from UL 1703 in the US
03 December 2019
IEC 61730 is a global standard for photovoltaic (PV) module safety qualification. In 2016, the latest edition of the standard was published to address advancements in the technology seen across the industry, including an increase in system voltage up to 1500 VDC. IEC 61730 is split into two parts: one for construction requirements and the second for testing. The scope of IEC 61730 is relevant to PV module manufacturer, evaluators, developer, and owners of PV systems. At the end of 2017, the US adopted this latest edition of the two-part IEC safety standard by publishing UL 61730-1 and UL 61730-2. These standards included all construction and testing requirements of IEC 61730-1 and IEC 61730-2, but with US national differences to comply with the National Electric Code (NEC).
As of December 4th, 2019, PV module manufacturers will be required to transition from ANSI/UL 1703 to UL 61730 for any new products, or existing products with significant material changes, for continued US market access.
The harmonized IEC and UL 61730 PV safety standard for international and North American markets allows manufacturers to avoid the costly and time-consuming process of having to evaluate and test their products to multiple safety standards for each region. With this harmonization, manufacturers can utilize compliance to 61730 for a streamlined approach and greater access to a more global marketplace.
To learn more about this transition of safety requirements for the US, including common questions, download our fact sheet.