These requirements cover electromagnetic interference (EMI) filters installed on@ or connected to@ 1@000 V or lower potential circuits@ 50 ?C 60 Hz@ or up to 1@500 Vdc@ and installed in accordance with the National Electrical Code@ NFPA 70. These requirements cover filters used to attenuate unwanted radio-frequency signals (such as noise or interference) generated from electromagnetic sources. These filters consist of capacitors and inductors used alone or in combination with each other and may be provided with resistors. These requirements cover facility filters@ cord-connected filters@ and direct plug-in filters. These requirements do not cover transient-voltage surge suppressors (that is@ devices for repeated limiting of voltage surges on power circuits such as silicone avalanche diodes@ metal oxide varistors@ gas tubes@ spark-gaps@ etc). Transient Voltage Surge Suppressors are investigated under the Standard for Surge Protective Devices@ UL 1449. These requirements also do not cover EMI filters for outdoor use. Appliance filters are covered under the Standard for Passive Filter Units for Electromagnetic Interference Suppression ?C Part 3: Passive Filter Units for Which Safety Tests are Appropriate@ UL 60939-3. These requirements do not cover direct plug-in products and cord-connected products provided with more than two receptacles. A direct plug-in product employing more than two receptacles and having an EMI filter is investigated under the requirements for current taps in the Standard for Attachment Plugs and Receptacles@ UL 498. A cord-connected product employing more than two receptacles and having an EMI filter is investigated under the Standard for Relocatable Power Taps@ UL 1363. The EMI filter part of these products would be investigated to determine compliance with the requirements in this standard in so far as they apply.
UL 1283-2017 history
1970UL 1283-2020 UL Standard for Safety for Electromagnetic Interference Filters
2018UL 1283 CRD-2018 UL Standard for Safety Electromagnetic Interference Filters - Section / Paragraph Reference: 29 Subject: Overload test for Filters with Over Temperature Protection (Edition 7; May 17@ 2017)
2018UL 1283 BULLETIN-2018 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: JUNE 4@ 2018)
2017UL 1283 BULLETIN-2017 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: MAY 9@ 2017)
2017UL 1283-2017 UL Standard for Safety Electromagnetic Interference Filters (Seventh Edition)
2016UL 1283 BULLETIN-2016 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: NOVEMBER 23@ 2016)
2015UL 1283 BULLETIN-2015 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: JUNE 29@ 2015)
2015UL 1283-2015 UL Standard for Safety Electromagnetic Interference Filters (Sixth Edition; Reprint with revisions through and including October 7, 2016)
2014UL 1283 BULLETIN-2014 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: April 23@ 2014)
2012UL 1283 BULLETIN-2012 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: June 11@ 2012)
2011UL 1283 BULLETIN-2011 UL Standard for Safety Electromagnetic Interference Filters (COMMENTS DUE: September 07@ 2011)
2008UL 1283 BULLETIN-2008 UL Standard for Safety for Electromagnetic Interference Filters (COMMENTS DUE: September 29@ 2008)
2005UL 1283 BULLETIN-2005 UL Standard for Safety for Electromagnetic Interference Filters
2005UL 1283-2005 UL Standard for Safety for Electromagnetic Interference Filters Fifth Edition; Reprint with revisions through and including July 31, 2007
2004UL 1283 BULLETIN-2004 UL Standard for Safety for Electromagnetic Interference Filters
1998UL 1283-1998 UL Standard for Safety Electromagnetic Interference Filters (Fourth Edition; Reprint with Revisions Through and Including August 18@ 1999)