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Standard 121201, Edition 9

Nonincendive Electrical Equipment for Use in Class I and II, Division 2 and Class III, Divisions 1 and 2 Hazardous (Classified) Locations

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Standard 121201, Edition 9 Edition Date: September 15, 2017 ANSI Approved: April 01, 2021 $519.00-$1,297.00
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April 01, 2021 Redline Revision
August 26, 2019 Redline Revision
August 31, 2018 Redline Revision
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CSDS Proposals

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November 06, 2020
June 12, 2020
May 31, 2019
May 15, 2019
March 08, 2019
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Referenced Standards (20)

Below is a list of UL Standards referenced in UL 121201

StandardEditionTitle
50 13 Enclosures for Electrical Equipment, Non-Environmental Considerations
50E 3 Enclosures for Electrical Equipment, Environmental Considerations
157 2 Standard for Gaskets and Seals
508 18 Standard for Industrial Control Equipment
746B 5 Polymeric Materials - Long Term Property Evaluations
783 6 Electric Flashlights and Lanterns for Use in Hazardous (Classified) Locations
823 9 Electric Heaters For Use In Hazardous (Classified) Locations
844 13 Luminaires for Use in Hazardous (Classified) Locations
1836 5 Outline of Investigation for Electric Motors and Generators for Use in Class I, Division 2, Class I, Zone 2, Class II, Division 2 and Zone 22 Hazardous (Classified) Locations
1977 3 Component Connectors for Use in Data, Signal, Control and Power Applications
2237 1 Multi-Point Interconnection Power Cable Assemblies for Industrial Machinery
2238 3 Cable Assemblies and Fittings for Industrial Control and Signal Distribution
60079-0 7 Standard for Explosive Atmospheres - Part 0: Equipment - General Requirements
60079-1 7 Standard for Explosive Atmospheres - Part 1: Equipment Protection by Flameproof Enclosures
60950-1 2 Information Technology Equipment - Safety - Part 1: General Requirements
61010-1 3 Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use - Part 1: General Requirements
62368-1 3 Standard for Audio/video, information and communication technology equipment - Part 1: Safety requirements
60079-11 6 Explosive Atmospheres - Part 11: Equipment Protection by Intrinsic Safety 'i'
60079-15 5 Standard for Explosive atmospheres - Part 15: Equipment protection by type of protection
60079-30-1 1 Standard for Explosive Atmospheres - Part 30-1: Electrical Resistance Trace Heating - General and Testing Requirements
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Reverse Referenced Standards (4)

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