REFUsol advised that its 012K-UL, 016K-UL, 020K-UL and 024K-UL solar inverters had been tested and passed for certification by Underwriters Laboratories (UL) allowing for the inverters to be used in the US market. The four inverters were tested in accordance with UL1741 and IEEE 1547 standards.
REFUsol’s inverters are rated IP65 or NEMA4, which makes them appropriate for both indoor and outdoor conditions. The company noted that the products covered by the requirements are intended to be used in accordance with the National Electric Code, NFPA 70.
“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 of REFUsol.