Tigo announced the new Underwriter Laboratories (UL) certification of its Photovoltaic Rapid Shutdown Systems (PVRSS) based on the companyâ€™s TS4 Platform and PV inverters from Yaskawa Solectria Solar and Huawei. This UL certification is part of Tigoâ€™s multivendor initiative providing customers with the advantages of reliable, safe, and cost-effective solutions. The use of Tigo smart modules and high efficiency inverters allows design flexibility for installers to comply with National Electric Code (NEC) 2017 690.12 RSS regulations. Tigo has also been internationally recognized as the only module-level power electronic vendor with UL-certified RSS with multiple PV module manufacturers. The following Yaskawa Solectria Solar inverters are UL listed as PV Rapid Shutdown Systems with Tigoâ€™s TS4 units: PVI 23TL, PVI 36TL, PVI 50TL, PVI 60TL with firmware 9.0 or later, and XGI 1000 - 60/60. The following Huawei inverters are UL-listed as a Rapid Shutdown System with Tigoâ€™s TS4 units: SUN2000-33KTL-US, SUN2000-36KTL-US, SUN2000-40KTL-US, with SUN2000V200R002C20SPC105 firmware or later, SUN2000-25KTL-US, and SUN2000-30KTL-US.
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