Brian, I'm curious if your NRTL has made it clear for what topic the pump needs certification? There are many energy efficiency criteria being applied to industrial components of various kinds these days. I cannot bring them all to mind quickly, but water circulators are certainly a possibility, as well as 3 phase induction motors. Energy efficiency compliance generally cannot be judged at the incorporated level.
Best Regards, -Lauren From: Brian Kunde <bkundew...@gmail.com> Sent: Thursday, June 30, 2022 2:01 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] NRTL Marks on Industrial Pump Assemblies External Email: Do NOT reply, click on links, or open attachments unless you recognize the sender and know the content is safe. If you believe this email may be unsafe, please click on the "Report Phishing" button on the top right of Outlook. I am confused and frustrated. We have an industrial product that includes a small water recirculation tank which includes a motor/pump assembly that is powered by 230V/360V/460Vac 3-phase. Our NRTL inspectors says this pump assembly must have UL, CSA, or equivalent. Here is a website that shows the type of assembly we are looking for: https://www.graymills.com/fm-series.html<https://nam02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.graymills.com%2Ffm-series.html&data=05%7C01%7Clauren.crane%40lamresearch.com%7Cd9bf71274ca44a02bbb008da5acae122%7C918079dbc9024e29b22c9764410d0375%7C0%7C0%7C637927978970075867%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=dbrKCO2k%2BDnZlrxRp%2FkMTz%2FR5CxV0gEFs2AYKchw86U%3D&reserved=0> The trouble is, Graymills, Granger, Dayton, etc. doesn't provide NRTL markings on the pumps that meet our functional requirements. They all say that most of their customers do not require these marks so they only offer a few models that do. How can this be? Am I missing something? Some say that manufacturers can get the pumps approved as part of a certification of the entire machine, but how can the pump be evaluated by a system integrator who doesn't manufacture the pump, nor has any constructional information? Wouldn't it HAVE to be done by the motor manufacturer? I keep asking our NRTL Field Inspector if he would accept such a product and the answer is no. Our CSA inspector also says no; it must have CSA or equivalent on the motor and/or motor/pump assembly. Any suggestions? Thanks, The Other Brian - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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