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NEMA WD 6 : 2016

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

WIRING DEVICES - DIMENSIONAL SPECIFICATIONS

Available format(s)

Hardcopy , PDF

Superseded date

20-04-2023

Superseded by

ANSI/NEMA WD 6:2021

Language(s)

English

Published date

14-04-2016

€233.30
Excluding VAT

Foreword
Scope
Introduction
Marking symbol for automatically controlled receptacles
Dimensional specifications for wallplates
Dimensional specifications for wallplates used on
347V switch devices
Wallplates mounting and cut-outs dimensions
Wallplates dimensions for round face devices
Wallplates dimensions for rectangular face devices
Wallplates dimensions for telephone devices
Wallplates dimensions for toggle switch devices
Yoke dimensions of receptacles and switches for box mounting
Yoke dimensions for 2-gang receptacles mounting ?on
and off center face
Dimensions for flush mount duplex devices; receptacles,
combo switches, etc
Dimensions for flush mount duplex devices; receptacles,
switches, excluding GFCI, etc
Dimensions for rectangular face devices with protruding
actuators, switch toggles
Dimensions for round and rectangular face single devices
Dimensions for interchangeable type: single, duplex,
and triplex devices
Wiring device maximum envelope dimension
Dimensions for flanged inlets and connector bodies
Flat blade hole locations general information
Drawings of NEMA configurations for non-locking
plugs and receptacles
Drawings of NEMA configurations for locking plugs
and receptacles
Drawings of NEMA configurations for specific purpose
plugs and receptacles
Configurations Chart of NEMA non-locking plugs
and receptacles
Configurations Chart of NEMA locking plugs and
receptacles
Configurations Chart of NEMA specific purpose plugs
and receptacles

Describes dimensional requirements for plugs and receptacles rated up to 60 Ampere and 600 Volts.

DocumentType
Standard
Pages
153
PublisherName
National Electrical Manufacturers Association
Status
Superseded
SupersededBy

W-C-596-103 Revision C:2017 Connector, Receptacle, Electrical, Special Purpose, Single, Grounding, 2 Pole, 3 Wire, 30 Amperes, 277 Volts, 50/60 Hertz
W-C-596-20 Revision D:2017 CONNECTORS, PLUG, ELECTRICAL, SPECIFIC PURPOSE, LOCKING, GENERAL GRADE, 2 POLE, 2 WIRE, 20 AMPERES, 250 VOLTS, 50/60 HERTZ
W-C-596-117 Revision B:2016 CONNECTORS, PLUG, ELECTRICAL, SPECIAL PURPOSE, GROUNDING, 3 POLE, 4 WIRE, 30 AMPERES, 125/250 VOLTS, 50/60 HERTZ
NFPA 70B : 2016 RECOMMENDED PRACTICE FOR ELECTRICAL EQUIPMENT MAINTENANCE
W-C-596-189 Revision C:2017 Connector, Plug, Electrical, General Purpose, Grounding, 3 Pole, 4 Wire, 30 Amperes, 125/250 Volts, 50/60 Hertz
W-C-596-109 Revision D:2017 Connector, Plug, Electrical, Special Purpose, Cable Outlet, Locking, Grounding, 2 Pole, 3 Wire, 20 Amperes, 277 Volts, 50/60 Hertz
W-C-596-108 Revision D:2017 Connector, Plug, Electrical, Special Purpose, Grounding, Locking, 2 Pole, 3 Wire, 20 Amperes, 277 Volts, 50/60 Hertz
W-C-596-129 Revision D:2017 CONNECTOR, PLUG, ELECTRICAL, SPECIAL PURPOSE, GROUNDING, LOCKING, 3 POLE, 4 WIRE, 30 AMPERES, 250 VOLTS, 50/60 HERTZ, 3-PHASE
W-C-596-126 Revision D:2017 CONNECTOR, PLUG, ELECTRICAL, SPECIAL PURPOSE, CABLE OUTLET, LOCKING, GROUNDING, 3 POLE, 4 WIRE, 20 AMPERES, 125/250 VOLTS, 50/60 HERTZ, 3-PHASE
W-C-596-60 Revision D:2017 Connector, Plug, Electrical, Specific Purpose, General Grade, Locking, 4 Pole, 4 Wire, 20 Amperes, 3 Phase Wye, 120/208 Volts, 50/60 Hertz
W-C-596-111 Revision C:2017 Connector, Receptacle, Electrical, Special Purpose, Single, Grounding, 2 Pole, 3 Wire, 15 Amperes, 277 Volts, 50/60 Hertz
A-A-55459 Revision D:2009 INTERRUPTER, GROUND FAULT, TWO-POLE, THREE-WIRE, 20-AMPERE
W-C-596-114 Revision D:2017 Connector, Plug, Electrical, Special Purpose, Cable Outlet, Grounding, Locking, 2 Pole, 3 Wire, 15 Amperes, 277 Volts, 50/60 Hertz
W-C-596-205 Revision C:2017 Connector, Plug, Electrical, General Purpose, Grounding, 3 Pole, 4 Wire, 30 Amperes, 250 Volts, 50/60 Hertz, 3-Phase
W-C-596-125 Revision C:2017 CONNECTORS, PLUG, ELECTRICAL, SPECIAL PURPOSE, GROUNDING, 3 POLE, 4 WIRE, 20 AMPERES, 250 VOLTS, 50/60 HERTZ, 3-PHASE
W-C-596-8 Revision E:2017 Connector, Plug, Electrical, Specific Purpose, Cable Outlet, General Grade, Locking, 2 Pole, 2 Wire, 15 Amperes, 125 Volts, 50/60 Hertz
MIL-PRF-32236 Base Document:2007 Generator, Chlorine - Portable Electrolytic (PECG)
W-C-596-30 Revision E:2017 Connector, Plug, Electrical, General Purpose, Cable Outlet, General Grade, 4 Pole, 4 Wire, 20 Amperes, 3 Phase WYE, 120/208 Volts, 50/60 Hertz
A-A-55461 Revision D:2009 INTERRUPTER, GROUND FAULT, TWO-POLE, THREE-WIRE, HOSPITAL GRADE, 20-AMPERE
MIL P 29183 : B PANELBOARD, POWER DISTRIBUTION PORTABLE WEATHERPROOF, GENERAL SPECIFICATION FOR
W-C-596-77 Revision D:2016 CONNECTOR, RECEPTACLE, ELECTRICAL, SPECIFIC PURPOSE, GENERAL GRADE, SINGLE, GROUNDING, LOCKING, 2 POLE, 3 WIRE, 30 AMPERES, 250 VOLTS, 50/60 HERTZ
W-C-596-128 Revision C:2017 CONNECTORS, RECEPTACLE, ELECTRICAL, SPECIAL PURPOSE, SINGLE, GROUNDING, 3 POLE, 4 WIRE, 30 AMPERES, 250 VOLTS, 50/60 HERTZ, 3-PHASE
CSA 2.22 : 2016 VENTED DECORATIVE GAS APPLIANCES
W-C-596-107 Revision C:2017 Connector, Receptacle, Electrical, Special Purpose, Single, Grounding, 2 Pole, 3 Wire, 20 Amperes, 277 Volts, 50/60 Hertz
W-C-596-7 Revision D:2017 Connector, Plug, Electrical, Specific Purpose, General Grade, Locking, 2 Pole, 2 Wire, 15 Amperes, 125 Volts, 50/60 Hertz
W-C-596-121 Revision C:2017 Connectors, Plug, Electrical, Special Purpose, Grounding, 3 Pole, 4 Wire, 20 Amperes, 125/250 Volts, 50/60 Hertz
UL 514D:2ED 2013-06-28 Cover Plates for Flush-Mounted Wiring Devices
W-C-596-16 Revision E:2016 CONNECTOR, RECEPTACLE, ELECTRICAL, GENERAL PURPOSE, DUPLEX, GENERAL GRADE, GROUNDING, 2 POLE, 3 WIRE, 15 AMPERES, 250 VOLTS, 50/60 HERTZ
W-C-596-104 Revision D:2017 Connector, Plug, Electrical, Special Purpose, Grounding, Locking, 2 Pole, 3 Wire, 30 Amperes, 277 Volts, 50/60 Hertz
W-C-596-39 Revision D:2017 Connector, Plug, Electrical, General Purpose, General Grade, 4 Pole, 4 Wire, 60 Amperes, 3 Phase Wye, 120/208 Volts, 50/60 Hertz
W-C-596-106 Revision C:2017 Connector, Receptacle, Electrical, Male Inlet, Special Purpose, Locking, Grounding, 2 Pole, 3 Wire, 30 Amperes, 277 Volts, 50/60 Hertz
W-C-596-18 Revision E:2017 Connector, Cable Outlet, Electrical, General Purpose, General Grade, Cable Connecting, Grounding, 2 Pole, 3 Wire, 15 Amperes, 250 Volts, 50/60 Hertz
W-C-596-41 Revision G:2016 CONNECTOR, RECEPTACLE, ELECTRICAL, GENERAL PURPOSE, SINGLE, HOSPITAL GRADE, GROUNDING, 2 POLE, 3 WIRE, 20 AMPERES, 125 VOLTS, 50/60 HERTZ
W-C-596-118 Revision D:2017 Connector, Plug, Electrical, Special Purpose, Cable Outlet, Locking, Grounding, 3 Pole, 4 Wire, 30 Amperes, 125/250 Volts, 50/60 Hertz
W-C-596-113 Revision C:2012 Connector, Plug, Electrical, Special Purpose, Grounding, Locking, 2 Pole, 3 Wire, 15 Amperes, 277 Volts, 50/60 Hertz
CSA 2.33 : 2017 VENTED GAS FIREPLACE HEATERS
W-C-596-45 Revision E:2017 Connector, Plug, Electrical, Specific Purpose, Cable Outlet, Locking, 3 Pole, 3 Wire, 20 Amperes, 125/250 Volts, 50/60 Hertz
CSA/ANSI Z83.19-2017/CSA 2.35-2017 Gas-fired high-intensity infrared heaters
W-C-596-27 Revision E:2017 Connector, Plug, Electrical, General Purpose, Cable Outlet, General Grade, 3 Pole, 3Wire, 20 Amperes 125/250 Volts, 50/60 Hertz
W-C-596-4 Revision E:2017 Connector, Plug, Electrical, General Purpose, General Grade, Cable Outlet, 2 Pole, 2 Wire, 15 Amperes, 125 Volts, 50/60 Hertz
W-C-596-200 Revision C:2017 Connector, Receptacle, Electrical, General Purpose, Single Grounding, 3 Pole, 4 Wire, 50 Amperes, 250 Volts, 50/60 Hertz, 3 Phase
W-C-596-130 Revision D:2017 CONNECTOR, PLUG, ELECTRICAL, SPECIAL PURPOSE, CABLE OUTLET, LOCKING, GROUNDING, 3 POLE, 4 WIRE, 30 AMPERES, 250 VOLTS, 50/60 HERTZ, 3-PHASE
ASHRAE HDBK REFRIGERATION : 2014 ASHRAE HANDBOOK - REFRIGERATION
W-C-596-185 Revision C:2017 Connector, Plug, Electrical, General Purpose, Grounding, 3 Pole, 4 Wire, 50 Amperes, 125/250 Volts, 50/60 Hertz
A-A-55460 Revision D:2009 INTERRUPTER, GROUND FAULT, TWO-POLE, THREE-WIRE HOSPITAL GRADE, 15-AMPERE
GG-T-35 Revision C:1989 TABLE; DRAWING, TRACING, AND SCRIBING
W-C-596-14 Revision E:2016 CONNECTOR, CABLE OUTLET, ELECTRICAL, GENERAL PURPOSE, HOSPITAL GRADE, CABLE CONNECTING, GROUNDING, 2 POLE, 3 WIRE, 15 AMPERES, 125 VOLTS, 50/60 HERTZ
W-C-596-141 Revision E:2017 CONNECTOR, RECEPTACLE, ELECTRICAL, MALE INLET, GENERAL PURPOSE, GROUNDING, 2 POLE, 3 WIRE, 15 AMPERES, 250 VOLTS, 50/60 HERTZ
ARINC 809-3 : 2014 3GCN - SEAT DISTRIBUTION SYSTEM
MIL-B-29172 Revision B:1991 BUILDING, PORTABLE, SKID MOUNTED, KNOCKDOWN
W-C-596-38 Revision D:2017 Connector, Receptacle, Electrical, General Purpose, Single, General Grade, 4 Pole, 4 Wire, 60 Amperes, 3 Phase Wye, 120/208 Volts, 50/60 Hertz
MIL-DTL-29183 Revision C:2003 PANELBOARDS, POWER DISTRIBUTION, PORTABLE, WEATHERPROOF, GENERAL SPECIFICATION FOR
W-C-596-23 Revision D:2017 Connector, Plug, Electrical, General Purpose, General Grade, 2 Pole, 2 Wire, 20 Amperes, 250 Volts, 50/60 Hertz
W-C-596-29 Revision D:2017 Connector, Plug, Electrical, General Purpose, General Grade, 4 Pole, 4 Wire, 20 Amperes, 3 Phase WYE, 120/208 Volts, 50/60 Hertz
NFPA 1901:2016 AUTOMOTIVE FIRE APPARATUS
SAE J2698_201411 Primary Single Phase Nominal 120 VAC Wiring Distribution Assembly Design—Truck and Bus
W-C-596-116 Revision C:2017 Connectors, Receptacle, Electrical, Special Purpose, Single, Grounding, 3 Pole, 4 Wire, 30 Amperes, 125/250 Volts, 50/60 Hertz
W-C-596-17 Revision F:2016 CONNECTOR, PLUG, ELECTRICAL, GENERAL PURPOSE, GROUNDING, GENERAL GRADE, 2 POLE, 3 WIRE, 15 AMPERES, 250 VOLTS, 50/60 HERTZ
W-C-596-64 Revision F:2016 CONNECTOR, RECEPTACLE, ELECTRICAL, GENERAL PURPOSE, SINGLE, GENERAL GRADE, GROUNDING, 2 POLE, 3 WIRE, 20 AMPERES, 250 VOLTS, 50/60 HERTZ
W-C-596-33 Revision E:2016 Connector, Receptacle, Electrical, General Purpose, Single, General Grade, 3 Pole, 3 Wire, 30 Amperes, 125/250 Volts, 50/60 Hertz
MIL-PRF-26139 Revision E:2015 TESTER, PRESSURIZED CABIN LEAKAGE, AIRCRAFT, (AF/M24T-3 AND AF/M32T-1)
W-C-596-168 Revision A:2006 CONNECTORS, RECEPTACLE, ELECTRICAL, GENERAL PURPOSE, SINGLE, GROUNDING, 2 POLE, 3 WIRE, 30 AMPERES, 250 VOLTS, 50/60 HERTZ
W-C-596-164 Revision B:2006 CONNECTORS, RECEPTACLE, ELECTRICAL, GENERAL PURPOSE, SINGLE, GROUNDING, 2 POLE, 3 WIRE, 50 AMPERES, 250 VOLTS, 50/60 HERTZ
MIL-DTL-53126 Revision A:2012 Power Distribution, Illumination Systems, Electrical General Specification for
ARINC 828-4:2015 ELECTRONIC FLIGHT BAG (EFB) STANDARD INTERFACE
W-C-596-140 Revision E:2017 CONNECTOR, RECEPTACLE, ELECTRICAL, MALE INLET, GENERAL PURPOSE, GROUNDING, 2 POLE, 3 WIRE, 15 AMPERES, 125 VOLTS, 50/60 HERTZ
W-C-596-37 Revision E:2017 Connector, Plug, Electrical, General Purpose, 3 Pole, 3 Wire, 50 Amperes, 125/250 Volts, 50/60 Hertz 9 (For New Design, use W-C-596/185)
W-C-596-42 Revision F:2016 CONNECTOR, PLUG, ELECTRICAL, GENERAL PURPOSE, GROUNDING, HOSPITAL GRADE, 2 POLE, 3 WIRE, 20 AMPERES, 125 VOLTS, 50/60 HERTZ
W-C-596-36 Revision E:2017 Connector, Receptacle, Electrical, General Purpose, Single, 3 Pole, 3 Wire, 50 Amperes, 125/250 Volts, 50/60 Hertz (For New Design, use W-C-596/184)
W-C-596-35 Revision E:2017 Connector, Plug, Electrical, General Purpose, Cable Outlet, 3 Pole, 3 Wire, 30 Amperes, 125/250 Volts, 50/60 Hertz (For New Design, use W-C-596/190)
W-C-596-43 Revision E:2017 Connector, Receptacle, Electrical, Specific Purpose, Single Locking, 3 Pole, 3 Wire, 20 Amperes, 125/250 Volts, 50/60 Hertz (For New Design, Use W-C-596/120)
W-C-596-142 Revision E:2017 CONNECTOR, RECEPTACLE, ELECTRICAL, MALE INLET, GENERAL PURPOSE, GROUNDING, 2 POLE, 3 WIRE, 20 AMPERES, 125 VOLTS, 50/60 HERTZ
A-A-59284 Base Document:1999 Soldering Iron, Electric
A-A-55458 Revision D:2009 INTERRUPTER, GROUND FAULT, TWO-POLE, THREE-WIRE, 15-AMPERE
A-A-54509 Base Document:1991 TESTER, FLASH POINT, CLOSED-TYPE (120 VOLT, 50/60 Hz, AC)
W-C-596-101 Revision E:2016 CONNECTOR, PLUG, ELECTRICAL, SPECIAL PURPOSE, CABLE OUTLET, GROUNDING, LOCKING, 2 POLE, 3 WIRE, 15 AMPERES, 125 VOLTS, 50/60 HERTZ
W-C-596-112 Revision C:2017 Connector, Receptacle, Electrical, Special Purpose, Duplex, Grounding, 2 Pole, 3 Wire, 15 Amperes, 277 Volts, 50/60 Hertz
NFPA 303 : 2016 FIRE PROTECTION STANDARD FOR MARINAS AND BOATYARDS
W-C-596-21 Revision D:2017 Connector, Plug, Electrical, Specific Purpose, Cable Outlet, Locking, General Grade, 2 Pole, 2 Wire, 20 Amperes, 250 Volts, 50/60 Hertz
MIL-B-28658 Revision E:1991 BUILDING COMPONENTS, PANELIZED, PREFABRICATED, READY-CUT, RELOCATABLE
W-C-596-144 Revision E:2017 Connector, Receptacle, Electrical, Male Inlet, General Purpose, Grounding, 2 Pole, 3 Wire, 20 Amperes, 250 Volts, 50/60 Hertz
W-C-596-181 Revision C:2017 Connector, Plug, Electrical, General Purpose, Grounding, 2 Pole, 3 Wire, 20 Amperes, 277 Volts, 50/60 Hertz
W-C-596-59 Revision E:2016 Connector, Receptacle, Electrical, Specific Purpose, Single Locking, 4 Pole, 4 Wire, 20 Amperes, 3 Phase WYE, 120/208 Volts, 50/60 Hertz
W-C-596-26 Revision D:2017 Connector, Plug, Electrical, General Purpose, General Grade, 3 Pole, 3 Wire, 20 Amperes, 125/250 Volts, 50/60 Hertz
W-C-596-3 Revision D:2017 Connector, Plug, Electrical, General Purpose, General Grade, 2 Pole, 2 Wire, 15 Amperes, 125 Volts, 50/60 Hertz
W-C-596-61 Revision D:2017 Connector, Cable Outlet, Electrical, Specific Purpose, Cable Connecting, General Grade, Locking, 4 Pole, 4 Wire, 20 Amperes, 3 Phase Wye, 120/208 Volts, 50/60 Hertz
W-C-596-34 Revision D:2017 Connector, Plug, Electrical, General Purpose, General Grade, 3 Pole, 3 Wire, 30 Amperes, 125/250 Volts, 50/60 Hertz
W-C-596-44 Revision E:2017 Connector, Plug, Electrical, Specific, Purpose, Locking, 3 Pole, 3 Wire, 20 Amperes, 125/250 Volts, 50/60 Hertz (For New Design, Use W-C-596/121)
W-C-596-184 Revision C:2017 Connectors, Receptacle, Electrical, General Purpose, Single, Grounding, 3 Pole, 4 Wire, 50 Amperes, 125/250 Volts, 50/60 Hertz
W-C-596-105 Revision D:2017 Connector, Plug, Electrical, Special Purpose, Cable Outlet, Locking, Grounding, 2 Pole, 3 Wire, 30 Amperes, 277 Volts, 50/60 Hertz
CSA C22.2 No. 182.3 : 2016 SPECIAL USE ATTACHMENT PLUGS, RECEPTACLES, AND CONNECTORS
CSA C22.2 No. 42 : 2010 : INC : UPD 3 : 2017 : R201500 GENERAL USE RECEPTACLES, ATTACHMENT PLUGS, AND SIMILAR WIRING DEVICES
CSA C22.2 No. 42 : 2010 : INC : UPD 1 : 2013 GENERAL USE RECEPTACLES, ATTACHMENT PLUGS, AND SIMILAR WIRING DEVICES
CSA 2.37 : 2014 GAS-FIRED OUTDOOR INFRARED PATIO HEATERS
CSA C22.2 No. 42 : 2010 GENERAL USE RECEPTACLES, ATTACHMENT PLUGS, AND SIMILAR WIRING DEVICES
NEMA WD 1:1999(R2005, R2010, R2015, R2020) General Color Requirements for Wiring Devices
CSA C22.2 No. 42 : 2010 : INC : UPD 2 : 2016 : R201500 GENERAL USE RECEPTACLES, ATTACHMENT PLUGS, AND SIMILAR WIRING DEVICES
C22.1-15 PACKAGE Consists of C22.1-15, Canadian electrical code, part I (23rd edition), safety standard for electrical installations; C22.1HB-15, Canadian electrical code handbook - an explanation of rules of the Canadian electrical code, part I and the 2015 Electrical quick reference
ANSI Z21.97-2017/CSA 2.41-2017 Outdoor decorative gas appliances
C22.2 NO. 243-17 Vacuum cleaners, blower cleaners, and household floor finishing machines (Binational standard with UL 1017)
CSA C22.2 No. 42 : 2010 : R2015 GENERAL USE RECEPTACLES, ATTACHMENT PLUGS, AND SIMILAR WIRING DEVICES
ANSI Z83.20-2016/CSA 2.34-2016 Gas-fired tubular and low-intensity infrared heaters
ANSI Z21.5.1-2017/CSA 7.1-2017 Gas clothes dryers, volume I, type 1 clothes dryers
ANSI C78.21 : 2011(R2016) American National Standard for Electric Lamps—PAR and R Shapes
ASTM F 1360 : 2017 : REDLINE Standard Specification for Ovens, Microwave, Electric
C22.1HB-18 Canadian Electrical Code Handbook - An Explanation of the Rules of the Canadian Electrical Code, Part I
NEMA UC 2:1993 (R2000, R2005, R2010, R2015) UNDERCARPET POWER DISTRIBUTION SYSTEMS
CSA C22.2 No. 21 : 2014 CORD SETS AND POWER-SUPPLY CORDS
ARINC 808 : 2010 3GCN - CABIN DISTRIBUTION SYSTEM
CSA/ANSI/IAS U.S. LC 2 : 1996 DIRECT GAS-FIRED CIRCULATING HEATERS FOR AGRICULTURAL ANIMAL CONFINEMENT BUILDINGS
CSA/ANSI Z21.1 : 2016 HOUSEHOLD COOKING GAS APPLIANCES
CSA/ANSI Z21.76-2016 Gas-fired unvented catalytic room heaters for use with propane gas
NASA KSC STD E 0011 : 2009 ELECTRICAL POWER RECEPTACLES AND PLUGS, STANDARD FOR
NFPA 1904 : 1991 AERIAL LADDER AND ELEVATING PLATFORM FIRE APPARATUS
CSA/ANSI Z21.86-2016/CSA 2.32-2016 Vented gas-fired space heating appliances
CSA C22.2 No. 42-1 : 2013 : INC : UPD 1 : 2016 COVER PLATES FOR FLUSH-MOUNTED WIRING DEVICES
ANSI Z21.5.1-2017/CSA 7.1-2017 Gas clothes dryers, volume I, type 1 clothes dryers
CSA/ANSI Z21.84-2017 Manually lighted, natural gas, decorative gas appliances for installation in solid-fuel burning appliances
CSA C22.2 No. 42-1 : 2013 COVER PLATES FOR FLUSH-MOUNTED WIRING DEVICES
NFPA 1902 : 1991 INITIAL ATTACK FIRE APPARATUS
CSA/ANSI Z21.60-2017/CSA 2.26-2017 Decorative gas appliances for installation in solid-fuel burning fireplaces
CSA/ANSI Z21.74-2017 Portable refrigerators
CSA/ANSI/IAS U.S. LC 2 : 1996 : INC : ADD A : 1998 : R2015 DIRECT GAS-FIRED CIRCULATING HEATERS FOR AGRICULTURAL ANIMAL CONFINEMENT BUILDINGS
CSA/ANSI Z21.50 : 2016 VENTED DECORATIVE GAS APPLIANCES

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