METZINGEN, GERMANY & SAN JOSE, USA: REFUsol GmbH announced that Underwriters Laboratories (UL) has successfully tested and passed the REFUsol 012K-UL, 016K-UL, 020K-UL and 024K-UL solar inverters for use in the US market. All four inverters were tested in accordance to UL1741 and IEEE 1547 standards. The official UL trademark is awaiting issuance.
The UL certification assures safe operation of the inverters for rooftop or ground mount projects throughout the USA. "Now that we are UL certified, REFUsol offers among the most efficient, three-phase transformerless string inverters in the USA. This is an exciting and positive development for US installers, EPCs and developers as they can now reduce time and cost for PV deployment," says Dr. Michael Seehuber, CTO, REFUsol GmbH.
For utility-interactive equipment, these UL test requirements are intended be used with the Standard for Interconnecting Distributed Resources With Electric Power Systems, IEEE 1547, and the Standard for Conformance Test Procedures for Equipment Interconnecting Distributed Resources with Electric Power Systems, IEEE 1547.1.
Juergen Schwarz, VP Finance and Business Development, REFU Solar Electronics, said: "Our light, compact inverters feature a precise MPP tracker. This enables the inverters to adjust their settings accordingly and achieve high efficiency, even with different temperatures and varying sun exposure."
REFUsol inverters are rated IP65 or NEMA 4, making them suitable for indoor and outdoor conditions. The products covered by these requirements are intended to be installed in accordance with the National Electrical Code, NFPA 70.
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