Mitsubishi UL 489 Listed Molded Case Circuit Breakers NF-U

UL is a US agency that establishes UL Standards which are safety standards, conducts safety verification tests based on these UL Standards, then issues certificates and approves certification marks for products that pass the testing process. The UL certification mark is widely recognized in the US. Some states and cities require UL certification, and it is also required when exporting equipment, control panels, devices, etc., to the US. UL certified products have obtained UL component certification (Recognition) or UL product certification (Listing) in accordance with UL Standards (UL 489, UL 1077), and can be used when incorporated in control panels and equipment, etc. exported to the US.