I may be missing something here, but you would need a pair of LISNs for a box that runs off a single phase and neutral. Most equipments of which I am aware use the same power connector pins whether 120 or 240 V. In that case, you just need one pair of LISNs. If for some reason your box runs off both 120 V and 240 simultaneously, then you would need two pairs of LISNs.
Current rating is whatever you need. I believe there are several manufacturers offering models designed for up to 16 A. -- Ken Javor Ph: (256) 650-5261 Hello and Happy Friday, I've got a sales guy telling me our 120/240V EUT needs two pair of single-phase LISNs for our CE test bench. That's only slightly cheaper than a 3-phase unit at > 50A, but very bulky. Can someone remind me why I'd need 4, 50A single-phase LISNs for our unit? I could see 3 (one for the neutral) but I'm not so savvy on EMC test equipment. thanks, Colorado Brian From: Brian Gregory <[email protected]> Reply-To: Brian Gregory <[email protected]> Date: Friday, April 5, 2024 at 5:01 PM To: <[email protected]> Subject: [PSES] Conducted emissions for Split-phase 120/240V needs three-phase LISN? This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to [email protected] All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher at: [email protected] To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to [email protected] All emc-pstc postings are archived and searchable on the web at: https://www.mail-archive.com/[email protected]/ Website: https://ewh.ieee.org/soc/pses/ Instructions: https://ewh.ieee.org/soc/pses/list.html (including how to unsubscribe) List rules: https://ewh.ieee.org/soc/pses/listrules.html For help, send mail to the list administrators: Mike Sherman at: [email protected] Rick Linford at: [email protected] For policy questions, send mail to: Jim Bacher: <[email protected]> _________________________________________________ To unsubscribe from the EMC-PSTC list, click the following link: https://listserv.ieee.org/cgi-bin/wa?SUBED1=EMC-PSTC&A=1
