UL 498C
Flatiron and Appliance Plugs

DETAILS
Edition Number:1SCC Approved:--
Edition Date:2017-04-28DOD Approved: --
Price Code:AANSI Approved: 2017-04-28
Type:ulcsa

  • SCOPE

    1 Scope

    1.1 These requirements cover flatiron and appliance plugs intended for use on cord-connected portable cooking or heating appliances rated up to 20 A, 250 Volts or less, intended for use in ordinary non-hazardous locations – all intended for connection to a branch circuit for use in accordance with the National Electrical Code, NFPA 70 and the Canadian Electrical Code, Part I, CSA C22.1-15.

    1.2 This Standard does not directly apply to the following devices, but may be used to supplement the requirements within these standards when a device is evaluated to these standards:

    a)    Devices produced integrally with flexible cord or cables that are covered by the Standard for Cord Sets and Power-Supply Cords, UL 817;

    b)    Devices intended for connection to the branch circuit, such as attachment plugs, cord connectors, receptacles, inlets, and outlets, which are covered by the Standard for Attachment Plugs and Receptacles, UL 498;

    c)    Devices solely intended for direct connection to the branch circuit in accordance with the National Electrical Code, NFPA 70, and that are provided with contacts of the pin and sleeve type, that are covered by the Standard for Plugs, Receptacles, and Cable Connectors of the Pin and Sleeve Type, UL 1682;

    d)    Devices consisting of wiring terminals and supporting blocks intended for the connection of wiring that are covered by the Standard for Terminal Blocks, UL 1059;

    e)    Devices such as wire connectors and soldering lugs that are covered by the Standard for Wire Connectors, UL 486A-486B; the Standard for Splicing Wire Connectors, UL 486C; or the Standard for Equipment Wiring Terminals for Use with Aluminum and/or Copper Conductors, UL 486E;

    f)    Devices such as quick-connect terminals that are covered by the Standard for Electrical Quick-Connect Terminals, UL 310; or

    g)    Devices such as appliance couplers that are covered by the Standard for Appliance Couplers for Household and Similar General Purposes – Part 1: General Requirements, UL 60320-1.

  • TABLE OF CONTENTS
    Expand All

    • Cover
    • Transmittal
    • UL Harmonized Standard Title Page
    • Table of Contents
      • Flatiron and Appliance Plugs
        • INTRODUCTION
          • 1 Scope
          • 2 Reference Publications
          • 3 Components
          • 4 Units of Measurements
          • 5 Definitions
          • 6 References
        • CONSTRUCTION
          • 7 General
          • 8 Insulating Materials
            • 8.1 General
            • 8.2 Flammability
            • 8.3 Electrical properties
            • 8.4 Thermal properties
          • 9 Enclosure
          • 10 Current-Carrying Parts
            • 10.1 General
            • 10.2 Contacts
            • 10.3 Terminals
          • 11 Cord Guard (Anti-Kink Device)
          • 12 Strain Relief
          • 13 Replacement Appliance Plug
          • 14 Spacings
          • 15 Assembly
          • 16 Switching Mechanism
          • 17 Thermostat
        • PERFORMANCE
          • 18 Tests – Representative Devices
          • 19 Comparative Tracking Index Test
          • 20 Glow Wire Test
          • 21 High-Current Arc Resistance to Ignition Test
          • 22 Dielectric Voltage-Withstand Test
          • 23 Mold Stress Relief Test
          • 24 Millivolt Drop Test
          • 25 Overload Test
          • 26 Heating Test
          • 27 Millivolt Drop Repeated Test
          • 28 Crushing Test
          • 29 Mechanical Endurance Test
          • 30 Accelerated Aging Test
          • 31 Cord Guard Test
        • MARKINGS
          • 32 General