UL Standard | UL 498

Attachment Plugs and Receptacles

UL Standard

Scope

004980-000000-000000

1 Scope

1.1 These requirements cover attachment plugs, receptacles, cord connectors, inlets, current taps provided with wiring terminals for flexible cord, and flatiron and appliance plugs – all intended for connection to a branch circuit for use in accordance with the National Electrical Code, ANSI/NFPA 70.

1.2 These requirements do not cover devices rated at more than 200 A or for more than 600 V. See 1.

1.3 This Standard does not directly apply to, but supplements the following standards:

a) Devices produced integrally with flexible cord or cable, covered by the Standard for Cord Sets and Power-Supply Cords, UL 817;
b) Current taps and adapters not provided with wiring terminals for flexible cord covered by the Standard for Current Taps and Adapters, UL 498A;
c) Devices employing male or female screwshells, covered by the Standard for Lampholders, UL 496;
d) Devices solely intended for direct connection to the branch circuit in accordance with the National Electrical Code, ANSI/NFPA 70, that are provided with contacts of the pin and sleeve type, covered by the Standard for Plugs, Receptacles and Cable Connectors of the Pin-and-Sleeve Type, UL 1682;
e) Single and multipole connectors intended for factory assembly to copper or copper alloy conductors or printed wiring boards for use in data, signal, control and power applications within and between electrical equipment, covered by the Standard for Component Connectors for Use in Data, Signal, Control and Power Applications, UL 1977;
f) Devices intended for installation and use in hazardous (classified) locations in accordance with the National Electrical Code, ANSI/NFPA 70, covered by the Standard for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations, UL 1203;
g) Devices intended for use with telecommunications networks, covered by the Standard for Information Technology Equipment – Safety – Part 1: General Requirements, UL 60950-1, or the Standard for Communications Circuit Accessories, UL 1863;
h) Devices incorporating ground-fault circuit interruption circuitry, covered by the Standard for Ground-Fault Circuit Interrupters, UL 943;
i) Single- or two-outlet direct plug-in devices incorporating transient voltage surge suppression circuitry, covered by the Standard for Surge Protective Devices, UL 1449;
j) Single- or two-outlet direct plug-in devices incorporating electromagnetic interference filter circuitry, covered by the Standard for Electromagnetic Interference Filters, UL 1283;
k) Cord-connected, relocatable power taps intended only for indoor use as a temporary extension of a grounding alternating-current branch circuit for general use, covered by the Standard for Relocatable Power Taps, UL 1363; or
l) Single pole locking-type separable connectors, covered by the Standard for Single Pole Locking-Type Separable Connectors, UL 1691.

1.4 This Standard contains the following supplements:

a) Supplement SA – Enclosure Types for Environmental Protection
b) Supplement SB – Marine Shore Power Inlets
c) Supplement SC – Hospital Grade Devices
d) Supplement SD – Weather-Resistant Receptacles
e) Supplement SE – Receptacles with Integral Power Supply with Class 2 Output Connectors
f) Supplement SF – Recessed Outlet Kit Assembly

Summary of Topics

Summary of Topics s498_16_sum.html

SUMMARY OF TOPICS

This revision of ANSI/UL 498 dated August 11, 2020 includes the following:

– Changes in requirements for connectors with latching mechanisms; 92.2, 93.1, 93.2, 94.1.2, 95.2, 96.1.1, 96.1.2, 98.1.1, Section 98.2

– New requirements for high ambient temperature for 15 & 20 A straight blade receptacles; Section 26A

Standard 498, Edition 16

Edition Date: April 28, 2017

DOD Approved: August 17, 1981

ANSI Approved: July 14, 2020

$798.00-$1,990.00

Date
August 11, 2020	Redline	Revision
May 27, 2020	Redline	Revision
January 17, 2020	Redline	Revision
October 08, 2019	Redline	Revision
August 16, 2019	Redline
August 15, 2019		Revision
August 09, 2019		Revision
December 14, 2018	Redline	Revision
June 27, 2018	Redline	Revision
November 03, 2017	Redline	Revision
July 28, 2017	Redline	Revision

Date

August 11, 2020

Redline

Revision

May 27, 2020

Redline

Revision

January 17, 2020

Redline

Revision

October 08, 2019

Redline

Revision

August 16, 2019

Redline

August 15, 2019

Revision

August 09, 2019

Revision

December 14, 2018

Redline

Revision

June 27, 2018

Redline

Revision

November 03, 2017

Redline

Revision

July 28, 2017

Redline

Revision

CSDS Proposal CSDS Proposals An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose: A revision of a single or multiple requirement(s). A complete new edition of an existing Standard or Outline. A new Standard or Outline that has not previously been published. CSDS Proposals provide access to view the proposal and submit comments within UL's Collaborative Standards Development System (CSDS) appropriately. ×	Summary of Topics (SOT)
September 25, 2020	N/A
June 12, 2020	N/A
April 14, 2020	N/A
March 13, 2020	N/A
May 24, 2019	View Summary of Topics b0498_16_20190524_sum.html Subject 498 Bulletin Dated: May 24, 2019 SUMMARY OF TOPICS The following topic for the Standard for Attachment Plugs and Receptacles, UL 498, is being recirculated: 1. Addition of Requirements for Markings and Instructions as New Paragraph 193.1.1.1
May 17, 2019	View Summary of Topics b0498_16_20190517_sum.html Subject 498 Bulletin Dated: May 17, 2019 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Addition of Configurable Plug requirements
March 08, 2019	View Summary of Topics b0498_16_20190308_sum.html Subject 498 Bulletin Dated: March 8, 2019 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed for preliminary review and comment only: 1. For Preliminary Review Only: A non-tamper resistant type cord connector of the ANSI/NEMA 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R configurations employing rotational-actuated latching mechanism and/or, rotational-actuated switching contacts.
February 22, 2019	View Summary of Topics b0498_16_20190222_sum.html Subject 498 Bulletin Dated: February 22, 2019 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Addition of Requirements for Markings and Instructions as New Paragraph 193.1.1.1
November 09, 2018	View Summary of Topics b0498_16_20181109_sum.html Subject 498 Bulletin Dated: November 9, 2018 SUMMARY OF TOPICS The following topic for the Standard for Attachment Plugs and Receptacles, UL 498, is being recirculated: 1. Revise the maximum withdrawal force test
October 26, 2018	View Summary of Topics b0498_16_20181026_sum.html Subject 498 Bulletin Dated: October 26, 2018 SUMMARY OF TOPICS The following topics for the Standard for Attachment Plugs and Receptacles, UL 498, are being recirculated: 1. Alternative Vertical-Ball Impact Test
October 19, 2018	View Summary of Topics b0498_16_20181019_sum.html Subject 498 Bulletin Dated: October 19, 2018 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Correction to Grounding Contact Test
August 24, 2018	View Summary of Topics b0498_16_20180824_sum.html Subject 498 Bulletin Dated: August 24, 2018 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Alternative Vertical-Ball Impact Test
August 17, 2018	View Summary of Topics b0498_16_20180817_sum.html Subject 498 Bulletin Dated: August 17, 2018 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Revise the maximum withdrawal force test 2. Revise marking of terminal tightening torque
June 29, 2018	View Summary of Topics b0498_16_20180629_sum.html Subject 498 Bulletin Dated: June 29, 2018 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Revision of the Vertical-Ball Impact Test
May 11, 2018	View Summary of Topics b0498_16_20180511_sum.html Subject 498 Bulletin Dated: May 11, 2018 SUMMARY OF TOPICS The following topic for the Standard for Attachment Plugs and Receptacles, UL 498, is being recirculated: 1. Addition of Requirements for Spring Action Terminal Clamps
March 09, 2018	View Summary of Topics b0498_16_20180309_sum.html Subject 498 Bulletin Dated: March 9, 2018 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Addition of Requirements for Spring Action Terminal Clamps 2. Addition of Requirements for (a) Cord Connectors of the ANSI/NEMA 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R Configurations Employing a Rotational-Actuated Latching Mechanism and (b) Tamper-Resistant and Non-Tamper Resistant Straight-Blade Receptacle Employing a Rotational-Actuated Latching Mechanism
September 15, 2017	View Summary of Topics b0498_16_20170915_sum.html Subject 498 Bulletin Dated: September 15, 2017 SUMMARY OF TOPICS The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed: 1. Addition of Requirements for Lighted Receptacles 2. Revision of Requirements for Fault Current Test in Paragraph 122.2

CSDS Proposal

CSDS Proposals

An electronic document associated with a UL Standard for Safety or Outline of Investigation, and issued by UL to propose:

A revision of a single or multiple requirement(s).
A complete new edition of an existing Standard or Outline.
A new Standard or Outline that has not previously been published.

CSDS Proposals provide access to view the proposal and submit comments within UL's Collaborative Standards Development System (CSDS) appropriately.

Summary of Topics (SOT)

September 25, 2020

N/A

June 12, 2020

N/A

April 14, 2020

N/A

March 13, 2020

N/A

May 24, 2019

View

Summary of Topics b0498_16_20190524_sum.html

Subject 498

Bulletin Dated: May 24, 2019

SUMMARY OF TOPICS

The following topic for the Standard for Attachment Plugs and Receptacles, UL 498, is being recirculated:

1. Addition of Requirements for Markings and Instructions as New Paragraph 193.1.1.1

May 17, 2019

View

Summary of Topics b0498_16_20190517_sum.html

Subject 498

Bulletin Dated: May 17, 2019

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Addition of Configurable Plug requirements

March 08, 2019

View

Summary of Topics b0498_16_20190308_sum.html

Subject 498

Bulletin Dated: March 8, 2019

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed for preliminary review and comment only:

1. For Preliminary Review Only: A non-tamper resistant type cord connector of the ANSI/NEMA 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R configurations employing rotational-actuated latching mechanism and/or, rotational-actuated switching contacts.

February 22, 2019

View

Summary of Topics b0498_16_20190222_sum.html

Subject 498

Bulletin Dated: February 22, 2019

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Addition of Requirements for Markings and Instructions as New Paragraph 193.1.1.1

November 09, 2018

View

Summary of Topics b0498_16_20181109_sum.html

Subject 498

Bulletin Dated: November 9, 2018

SUMMARY OF TOPICS

The following topic for the Standard for Attachment Plugs and Receptacles, UL 498, is being recirculated:

1. Revise the maximum withdrawal force test

October 26, 2018

View

Summary of Topics b0498_16_20181026_sum.html

Subject 498

Bulletin Dated: October 26, 2018

SUMMARY OF TOPICS

The following topics for the Standard for Attachment Plugs and Receptacles, UL 498, are being recirculated:

1. Alternative Vertical-Ball Impact Test

October 19, 2018

View

Summary of Topics b0498_16_20181019_sum.html

Subject 498

Bulletin Dated: October 19, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Correction to Grounding Contact Test

August 24, 2018

View

Summary of Topics b0498_16_20180824_sum.html

Subject 498

Bulletin Dated: August 24, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Alternative Vertical-Ball Impact Test

August 17, 2018

View

Summary of Topics b0498_16_20180817_sum.html

Subject 498

Bulletin Dated: August 17, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Revise the maximum withdrawal force test

2. Revise marking of terminal tightening torque

June 29, 2018

View

Summary of Topics b0498_16_20180629_sum.html

Subject 498

Bulletin Dated: June 29, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Revision of the Vertical-Ball Impact Test

May 11, 2018

View

Summary of Topics b0498_16_20180511_sum.html

Subject 498

Bulletin Dated: May 11, 2018

SUMMARY OF TOPICS

The following topic for the Standard for Attachment Plugs and Receptacles, UL 498, is being recirculated:

1. Addition of Requirements for Spring Action Terminal Clamps

March 09, 2018

View

Summary of Topics b0498_16_20180309_sum.html

Subject 498

Bulletin Dated: March 9, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Addition of Requirements for Spring Action Terminal Clamps

2. Addition of Requirements for (a) Cord Connectors of the ANSI/NEMA 1-15R, 5-15R, 5-20R, 6-15R, or 6-20R Configurations Employing a Rotational-Actuated Latching Mechanism and (b) Tamper-Resistant and Non-Tamper Resistant Straight-Blade Receptacle Employing a Rotational-Actuated Latching Mechanism

September 15, 2017

View

Summary of Topics b0498_16_20170915_sum.html

Subject 498

Bulletin Dated: September 15, 2017

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Attachment Plugs and Receptacles, UL 498, are being proposed:

1. Addition of Requirements for Lighted Receptacles

2. Revision of Requirements for Fault Current Test in Paragraph 122.2

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February 14, 2020

UL LLC - Certification Requirement Decision Learn more about CRDs

Certification Requirement Decisions (CRDs) are certification documents developed and owned by UL LLC. Certification Requirement Decisions are not consensus documents.

February 14, 2020

Bulletin Bulletins These bulletins are not used in CSDS. These are announcement and report type bulletins. ×	Summary of Topics (SOT)
May 04, 2017	View Summary of Topics m8800_1_20170504_sum.html Subject 8800 (73, 496, 498, 817, 1598, 1977, 1993, 8750) Bulletin Dated: May 4, 2017 Summary of Topics This bulletin announces the availability of the Outline of Investigation for Horticultural Lighting Equipment, UL 8800

Bulletin

Bulletins

These bulletins are not used in CSDS. These are announcement and report type bulletins.

Summary of Topics (SOT)

May 04, 2017

View

Summary of Topics m8800_1_20170504_sum.html

Subject 8800 (73, 496, 498, 817, 1598, 1977, 1993, 8750)

Bulletin Dated: May 4, 2017

Summary of Topics

This bulletin announces the availability of the Outline of Investigation for Horticultural Lighting Equipment, UL 8800

Standard	Edition	Title
197	10	Commercial Electric Cooking Appliances
2930	3	Outline of Investigation for Cord-and-Plug-Connected Health Care Facility Outlet Assemblies

Standard

Edition

Title

197

Commercial Electric Cooking Appliances

2930

Outline of Investigation for Cord-and-Plug-Connected Health Care Facility Outlet Assemblies

UL Standards Sales Site

Attachment Plugs and Receptacles

Revisions and Related Documents

UL 498 is referenced in the following list of UL Standards

Attachment Plugs and Receptacles

1 Scope

SUMMARY OF TOPICS

Revisions and Related Documents

Subject 498

Bulletin Dated: May 24, 2019

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: May 17, 2019

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: March 8, 2019

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: February 22, 2019

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: November 9, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: October 26, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: October 19, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: August 24, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: August 17, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: June 29, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: May 11, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: March 9, 2018

SUMMARY OF TOPICS

Subject 498

Bulletin Dated: September 15, 2017

SUMMARY OF TOPICS

Subject 8800 (73, 496, 498, 817, 1598, 1977, 1993, 8750)

Bulletin Dated: May 4, 2017

Summary of Topics

UL 498 is referenced in the following list of UL Standards

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