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

Available format(s)

Hardcopy

Language(s)

English

Published date

09-15-2017

Publisher

Underwriters Laboratories

PREFACE
1 Scope
2 Reference publications
3 Definitions
4 General requirements
5 Requirements for Class I, Division 2 equipment
6 Requirements for Class II, Division 2, Class III,
   Divisions 1 and 2 equipment
7 Nonincendive circuits and nonincendive field wiring
8 Normally nonarcing components
9 Marking
10 Surface temperature requirements
11 Spark ignition testing of nonincendive circuits
12 Evaluation of nonincendive components
13 Evaluation of sealed devices
14 Evaluation of enclosed-break devices
15 Enclosure ingress protection for Class II and III
16 Drop tests and impact tests
17 Evaluation of an oil immersed equipment
18 Manufacturer's instructions
Annex A - Normative References (normative)
Annex B - Common Standards - Safety Requirements for
          Electrical Equipment (informative)
Annex C - Suggested Warnings with French Equivalent
          (informative)

This revision to ANSI/UL 121201 dated April 1, 2021 is being issued to include the following changes in requirements: – Revisions to opening of sealed devices; 3.11, 3.34, 13.1.8 – Revisions to Consideration of Normal operating conditions; 3.30, 4.1.1 – Revisions to the application of general industrial / ordinary locations requirements; 4.2.1, 4.4.1, 4.4.2, 5.6.0, Annex B – Revisions to Li ion batteries used in Division 2 portable equipment; 5.2.2, Annex A – Revisions to the sealed device requirements; 13.1.5 – Revisions to the Drop test for portable equipment; 16.2.1 – Revisions to correct reference in Clauses 5.1.2 and 5.3.1

DevelopmentNote	Also numbered as CSA C22.2.213. (10/2017)
DocumentType	Standard
Pages	0
ProductNote	NEW CHILD REV 1 2018 IS NOW ADDED. NEW CHILD REV 2 2019 IS NOW ADDED. New child REV 3 2021 is added
PublisherName	Underwriters Laboratories
Status	Current

Includes products which shall comply with the referenced installation codes and standards noted in Annex A.

CSA C22.2 No. 94.1 : 2015	ENCLOSURES FOR ELECTRICAL EQUIPMENT, NON-ENVIRONMENTAL CONSIDERATIONS
UL 50:13ED 2015-10	Enclosures for Electrical Equipment, Non-Environmental Considerations
UL 60079-6:4ED 2016-04	Explosive atmospheres - Part 6: Equipment protection by liquid immersion
C22.1-15	Canadian Electrical Code, Part I (23rd Edition), Safety Standard for Electrical Installations
CSA C22.2 No. 60079-15 : 2016	EXPLOSIVE ATMOSPHERES - PART 15: EQUIPMENT PROTECTION BY TYPE OF PROTECTION 'N'
CSA C22.2 No. 60079-11 : 2014	EXPLOSIVE ATMOSPHERES - PART 11: EQUIPMENT PROTECTION BY INTRINSIC SAFETY 'I'
CSA C22.2 No. 60079.0 : 2015	EXPLOSIVE ATMOSPHERES - PART 0: EQUIPMENT - GENERAL REQUIREMENTS
IEEE C57.12.00-2015	IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEC 60216-2:2005	Electrical insulating materials - Thermal endurance properties - Part 2: Determination of thermal endurance properties of electrical insulating materials - Choice of test criteria
CSA C22.2 No. 60079.1 : 2016	EXPLOSIVE ATMOSPHERES - PART 1: EQUIPMENT PROTECTION BY FLAMEPROOF ENCLOSURES 'D'
IEEE C57.12.90-2010	IEEE Standard Test Code for Liquid-Immersed Distribution, Power, and Regulating Transformers
IEC 60529:1989+AMD1:1999+AMD2:2013 CSV	Degrees of protection provided by enclosures (IP Code)
NFPA 70 : 2017	NATIONAL ELECTRICAL CODE
IEC 60079-25:2010	Explosive atmospheres - Part 25: Intrinsically safe electrical systems
CAN/CSA-C22.2 NO. 60079-6:17	Explosive atmospheres - Part 6: Equipment protection by liquid immersion \"o\" (Adopted IEC 60079-6:2015, fourth edition, 2015-02, with Canadian deviations)
UL 783:6ED 2003-04	Electric Flashlights and Lanterns for Use in Hazardous (Classified) Locations
UL 60079-1:7ED 2015-09	Explosive Atmospheres - Part 1: Equipment Protection by Flameproof Enclosures
ISO 178:2010	Plastics Determination of flexural properties
IEC 60216-1:2013	Electrical insulating materials - Thermal endurance properties - Part 1: Ageing procedures and evaluation of test results
UL 60079-0:6ED 2013-07	Explosive Atmospheres - Part 0: Equipment - General Requirements
CSA C22.2 No. 94.2 : 2015	ENCLOSURES FOR ELECTRICAL EQUIPMENT, ENVIRONMENTAL CONSIDERATIONS

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UL 121201:9ED 2017-09

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

Table of Contents

Abstract

General Product Information

Scope

Standards Referencing This Book

Category

Subcategory