REFUsol GmbH says 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 U.S. 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 U.S., REFUsol says. 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.