UL 60939-3
Standard for Passive Filter Units for Electromagnetic Interference Suppression – Part 3: Passive Filter Units for Which Safety Tests are Appropriate
standard by Underwriters Laboratories, 07/22/2016
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UL 60079-11
Explosive Atmospheres – Part 11: Equipment Protection by Intrinsic Safety 'i'
standard by Underwriters Laboratories, 02/15/2013
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UL 60950-1
Information Technology Equipment – Safety – Part 1: General Requirements
standard by Underwriters Laboratories, 03/27/2007
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