SUN - UL 458, Power Converters-Inverters and Power Converter-Inverter Systems for Land Vehicles and Marine Crafts

Impact Statement: A review of all Listing Reports is necessary to determine which products comply with new/revised requirements and which products will require re-evaluation. NOTE: Effective immediately, this revised standard will be exclusively used for evaluation of new products unless the Applicant requests in writing that current requirements be used along with their understanding that their listings will be withdrawn on Effective Date noted above, unless the product is found to comply with new/revised requirements.

Overview of Changes: UL 458 5th edition was revised to edit supplementary protectors in the output alternating circuits of recreational vehicle inverters for consistency and compliance with Article 551.43 of the National Electrical Code, NFPA 70. Specific details of new/revised requirements are found in table below.

Schedule: So that shipping of products with Listing Marks will not be interrupted, an approximate schedule has been established to ensure Listing Reports are found compliant by Effective Date:

• June 1, 2015 = 7-8 Month Report Review – Intertek will review all Reports. Update if compliance is verified or issue Findings Letter/Quote for any re-evaluations needed
• July 30, 2015 = 6 Month Quote Cut-off – Quotes returned for necessary re-evaluations
• January 28, 2016 = 30 Day Warning – Client advised of all non-compliant Reports to be Suspended
• February 20, 2016 = Effective Date – ATM Suspended for all non-compliant Reports

Fees: An initial review of Listing Report (s) will be covered by a direct billing project and will be invoiced at not more than $1000 per report.

Client Action Required:

Information - To assist our Engineer with review of your Listing Reports, please submit technical information in response to the new/revised paragraphs noted in the attached or explain why these new/revised requirements do not apply to your product (s).