These requirements cover solid state speed controls rated 300 volts or less, single phase, intended to be connected to 15 - 20 ampere branch circuits and intended to be installed in accordance with the National Electrical Code, ANSI/NFPA 70 and used with: (a) Fans and blowers that circulate air, such as desk, bracket, ceiling, hassock, pedestal, and utility fans; (b) Fans and blowers that ventilate air, such as attic, wall-insert, ceiling-insert, household hoodand canopy-types, and window fans; (c) Evaporative coolers; (d) Air-filtering appliances; (e) Fan-type deodorizers; and (f) Fan-type air fresheners.
UL 1917 BULLETINS-2002 history
2017UL 1917 BULLETIN-2017 UL Standard for Safety Solid-State Fan Speed Controls (COMMENTS DUE: September 18@ 2017)
2013UL 1917 BULLETIN-2013 UL Standard for Safety Solid-State Fan Speed Controls (COMMENTS DUE: April 22@ 2013)
2013UL 1917-2013 UL Standard for Safety Solid-State Fan Speed Controls (Fourth Edition; Reprint with Revisions Through and Including October 4@ 2017)
2012UL 1917 CRD-2012 UL Standard for Safety Solid-State Fan Speed Controls - Subject: Abnormal Switching Test - Requirements for controls using electronic triggering techniques@ such as zero-crossing switching@ to switch the control’s output switching device (Edition 3: Febru
2012UL 1917 BULLETIN-2012 UL Standard for Safety Solid-State Fan Speed Controls (COMMENTS DUE: December 19@ 2012)
2011UL 1917 BULLETIN-2011 UL Standard for Safety Solid-State Fan Speed Controls (COMMENTS DUE: September 28@ 2011)