Hello Doug,
You will need to work with a test laboratory familiar with the METI DENAN requirements. UL Listing and a CE mark alone are not sufficient. Japan has specific requirements for many types of products. You will need to determine if there are Japanese requirements that differ from the requirements of UL and the European Norms. Japan often has specific requirements in a product’s grounding path. If you can find it, look at Appendix 4 of the DENAN rules for some of the more atypical requirements for power distribution in DENAN compliant products. If your product clearly is not a Specified product but falls under the “Other” category, meaning that it gets the circled PSE mark, you will have an easier task. You don’t need testing by a METI approved third-part laboratory. However, you still need to verify the product complies, mark it and notify METI through your importer of record. Further, you need to be aware of the differences in the Japanese power system. Beware that if your product contains a motor, you may need versions for both 50 and 60 Hz. The country is split between the two frequencies. The common residential voltage is 100 V, which can significantly affect the operation of products with motors or electric heaters. A 120 volt resistive heater will only generate 70% of its normal heat at 100 volts. Grounded outlets are not common in residential installation. If your product requires a ground connection, you will need a special plug. There are Japanese cords with a two bladed plug and a long grounding wire coming off of the plug. You will also need a DENAN approved cord set. A standard NEMA 1-15 or 5-15 plug isn’t acceptable without Japanese approval. Ted Eckert Compliance Engineer Microsoft Corporation [email protected] The opinions expressed are my own and do not necessarily reflect those of my employer. From: Doug Kramer [mailto:[email protected]] Sent: Friday, March 20, 2009 3:48 PM To: [email protected] Subject: PSE requirements Is there a good reference on the web as to what is required for the PSE mark? Testing requirements in particular. A customer has a cULus listed product that is also CE-marked. Are there further test requirements for the PSE mark? The current plan is to supply/require a PSE approved transformer at the point of installation. The device in question is a Category B device under Item 7 of Appendix 2. (http://www.meti.go.jp/english/policy/denan/procedure/03.htm) Thanks, Doug Kramer - 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 http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]> - 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 http://www.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher <[email protected]> David Heald <[email protected]>

