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NEMA ICS 6-1993 (R2006)

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Industrial Control and Systems: Enclosures
Available format(s)

Hardcopy , PDF

Superseded date

04-20-2023

Language(s)

English

Published date

05-10-2017

Foreword
Section 1 GENERAL
  1.1 Referenced Standards
  1.2 Scope
  1.3 Normative Standards
  1.4 General Requirements
Section 2 DEFINITIONS
Section 3 CLASSIFICATION
  3.1 Standard Enclosure Types
  3.2 Multiple Type Designations
Section 4 CHARACTERISTICS AND RATINGS
Section 5 PRODUCT MARKING, INSTALLATION, AND MAINTENANCE
          INFORMATION
  5.1 Marking
  5.2 Enclosure Grounding
  5.3 Tapered Pipe Threads
  5.4 Maintenance
Section 6 SERVICE AND STORAGE CONDITIONS
Section 7 CONSTRUCTION
  7.1 Strength of Enclosures
      7.1.1 Sheet Metal Enclosures
      7.1.2 Cast Metal Enclosures
      7.1.3 Securing Means
  7.2 Ventilating Openings
      7.2.1 General
      7.2.2 Perforated or Expanded Sheet Metal
      7.2.3 Screen Enclosures
      7.2.4 Minimum Screen Wire Size
  7.3 Wire Entrances
      7.3.1 Knockouts
      7.3.2 Knockout Diameters and Conduit Bushing
            Dimensions
      7.3.3 Threaded Conduit Hubs
      7.3.4 Threaded Holes for Rigid Conduit
  7.4 Electrical Spacings
  7.5 Wire-Bending Space
  7.6 Provisions for Grounding
  7.7 Legends
Section 8 PERFORMANCE REQUIREMENTS AND TESTS
  8.1 General
  8.2 Nonmetallic Enclosures
  8.3 Type 5 and Type 12 Enclosures with Ventilated
      Compartment
Section 9 APPLICATION

Covers enclosure requirements of all industrial control devices functioning on commercial voltages of up to 750 V dc or up to 7,200 V ac. Includes information concerning ratings, construction, testing, performance and manufacture.

DevelopmentNote
To be used in conjunction with NEMA 250. (06/2005)
DocumentType
Standard
Pages
0
PublisherName
National Electrical Manufacturers Association
Status
Superseded
SupersededBy

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MIL-B-44037 Revision A:1986 BLENDER, POWERED MIX, MECHANICALLY REFRIGERATED
MIL-B-17452 Revision E:1990 BOILERS, STEAM AND HOT WATER, FIRETUBE - SCOTCH PACKAGED TYPE (320,001 TO 35,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
IEEE 241 : 1990 ELECTRIC POWER SYSTEMS IN COMMERCIAL BUILDINGS
ANS 57.7 : 88(R1997) DESIGN CRITERIA FOR AN INDEPENDENT SPENT FUEL STORAGE INSTALLATION (WATER POOL TYPE)
SAE ARP 1940 : 1993 SOLID-STATE FREQUENCY CONVERTER 400 HERTZ, 3-PHASE OUTPUT
MIL-C-13874 Revision K:1992 COMPRESSORS, RECIPROCATING AND ROTARY, AIR, ELECTRIC MOTOR DRIVEN
MIL-PRF-32037 Base Document:1999 BLAST CLEANING ROOM
F-B-2903 Base Document:1998 BOILERS, STEAM AND HOT WATER, FIRETUBE, SCOTCH PACKAGED TYPE (320,001 TO 35,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
ASME AG-1 : 2019 CODE ON NUCLEAR AIR AND GAS TREATMENT
MIL-B-18796 Revision F:1984 BURNERS, SINGLE: OIL, GAS, AND GAS-OIL COMBINATION FOR PACKAGED BOILERS (320,001 TO 125,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
MIL-G-19826 Revision F:1984 GENERATOR SET, DIESEL ENGINE, ALTERNATING CURRENT FOR FACILITIES CONSTRUCTION, 1O KW THRU 500 KW (NOT STOCKED)
API 14FZ : 2013 RECOMMENDED PRACTICE FOR DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, ZONE 0, ZONE 1, AND ZONE 2 LOCATIONS
OO-L-2880 Base Document:1997 LAUNDRY UNIT, SKID-MOUNTED, 100 POUNDS (DRY WEIGHT) PER HOUR
F-P-2908 Base Document:1997 PUMPING UNIT, CONDENSATE, RETURN, AND BOILER FEED PACKAGE
SAE J 2051 : 2005 QUALIFICATIONS FOR FOUR-WAY SUBBASE MOUNTED AIR VALVES FOR AUTOMOTIVE MANUFACTURING APPLICATIONS
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API 540:1999 ELECTRICAL INSTALLATIONS IN PETROLEUM PROCESSING PLANTS
MIL-C-3925 Revision H:1989 COMPRESSOR, RECIPROCATING AND ROTARY POWER DRIVEN, AIR [PAINT SPRAY TYPE]
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MIL-B-28685 Base Document:1990 BAGHOUSE, REVERSE PULSE JET; FOR PACKAGED BOILEK3 FIRED ON COAL OR A COMBINATION OF COAL AND GAS, COAL AND OIL, OR COAL-GAS-OIL (2,000,000 TO 125,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
API 551 : 2016 PROCESS MEASUREMENT
ASME AG 1 : 2012 CODE ON NUCLEAR AIR AND GAS TREATMENT
F-S-2911 Base Document:1997 STOKERS, MECHANICAL - FOR PACKAGED BOILERS FIRED ON COAL OR A COMBINATION OF COAL-GAS, COAL-OIL, OR COAL-GAS-OIL (2,000 TO 50,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
A-A-59392 Base Document:1999 GRINDING MACHINES, SURFACE, ROTARY TABLE, HORIZONTAL SPINDLE
MIL-S-3788 Revision G:1991 SHAPER, WOODWORKING
F-B-2902 Base Document:1990 BOILERS, STEAM WATERTUBE (BENT TUBE, MULTI-DRUM AND CROSS DRUM) PACKAGED TYPE (10,000,000 TO 125,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
MIL-M-29198 Revision A:1985 MONITOR, CARBON MONOXIDE, CONTINUOUS AND ALARM [FOR BREATHING AIR SYSTEMS]
API 540 : 1999 : R2006 ELECTRICAL INSTALLATIONS IN PETROLEUM PROCESSING PLANTS
OO-P-2895 Base Document:1997 PLANT, AGGREGATE, SECONDARY, WITH CONE CRUSHER, MOBILE, 75 TON PER HOUR CAPACITY
MIL-H-82000 Revision C:1990 HEATER, HOT OIL, 1.5, 3 AND 5 MILLION BTU/H OUTPUT, SKID MOUNTED
MIL M 29212 : B NOTICE 1 MIXING PLANT, ASPHALT, DRUM TYPE, PORTABLE, ELECTRIC MOTOR DRIVEN, 120 TONS PER HOUR CAPACITY
MIL-B-17095 Revision H:1990 BOILERS, STEAM, WATERTUBE (BENT TUBE, MULTI-DRUM AND CROSS DRUM) PACKAGED TYPE (10,000,000 TO 125,000,000 BTU/HR THERMAL OUTPUT CAPACITY)
API 14F:2008 DESIGN, INSTALLATION, AND MAINTENANCE OF ELECTRICAL SYSTEMS FOR FIXED AND FLOATING OFFSHORE PETROLEUM FACILITIES FOR UNCLASSIFIED AND CLASS 1, DIVISION 1 AND DIVISION 2 LOCATIONS
MIL-C-24174 Revision A:1987 CONTROL, NAVIGATION LIGHTS, GENERAL SPECIFICATION FOR
XX-C-2816 Revision A:2016 COMPRESSOR, AIR, RECIPROCATING OR ROTARY, ELECTRIC MOTOR DRIVEN, STATIONARY, 10 HP AND LARGER
F-B-2910 Base Document:1998 BURNERS, SINGLE: OIL, GAS, AND GAS-OIL COMBINATION FOR PACKAGED BOILERS (320,001 TO 125, 000,000 BTU/HR THERMAL OUTPUT CAPACITY)
MIL-B-43928 Revision A:1987 BROILER, CONVEYORIZED, INFRARED, ELECTRIC
WW-F-2743 Revision A:1998 FURNACES, WARM AIR & HEATERS, UNIT, FORCED AIR CIRCULATION, OIL & GAS FIRED
CC-G-2745 Base Document:1984 GENERATOR SETS, DIESEL ENGINE, ALTERNATING CURRENT, FOR FACILITIES CONSTRUCTION; 10 KW THROUGH 1000 KW (NOT STOCKED)
MIL-C-11085 Revision D:1986 CONVEYOR, BELT; (FLAT, SKID-MOUNTED, ELECTRIC-MOTOR-DRIVEN, 24-INCH-WIDE BELT, 50-FOOT-LONG FRAME; CAPACITY, 25 POUNDS PER FOOT, 75 TONS PER HOUR)
IEEE DRAFT 833 : D3 2004 PRACTICE FOR THE PROTECTION OF ELECTRIC EQUIPMENT IN NUCLEAR POWER GENERATING STATIONS FROM WATER HAZARDS
OO-S-256 Revision K:2012 Sewing Machine, Industrial, General Specification for
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NEMA ICS 20:2009 (R2015) Informational Guide to Electrical Industrial Topics
UFC 3-430-11 : 2001 UNIFIED FACILITIES CRITERIA - BOILER CONTROL SYSTEMS
NEMA ICS 61800-2:2005 Adjustable Speed Electrical Power Drive Systems, Part 2: General Requirements—Rating Specifications for Low Voltage Adjustable Frequency AC Power Drive Systems
NEMA ICS8 : 2011 APPLICATION GUIDE FOR INDUSTRIAL CONTROL AND SYSTEMS CRANE AND HOIST CONTROLLERS
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NEMA ICS 3:2005 (R2010) INDUSTRIAL CONTROL AND SYSTEMS: MEDIUM VOLTAGE CONTROLLERS RATED 2001 TO 7200 VOLTS AC
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NEMA ICS 1.3:1986 (R2001, R2009, R2015) Preventive Maintenance of Industrial Control and Systems Equipment
NEMA ICS 2:2008 Controllers, Contactors and Overload Relays Rated 600 V
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NEMA ICS 61800-1:2002(R2007) Adjustable Speed Electrical Power Drive Systems, Part 1: General Requirements—Rating Specifications for Low Voltage Adjustable-Speed DC Power Drive Systems
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IEEE 3001.11-2017 IEEE Recommended Practice for Application of Controllers and Automation to Industrial and Commercial Power Systems
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CSA C22.2 No. 5 : 2013 MOLDED-CASE CIRCUIT BREAKERS, MOLDED-CASE SWITCHES AND CIRCUIT-BREAKER ENCLOSURES
ANSI C80.5 : 2015 ELECTRICAL RIGID METAL CONDUIT - ALUMINUM (ERMC-A)
NEMA ICS 1.1-1984 (R1988, R1993, R1998, R2003, R2009, R2015) Safety Guidelines for the Application, Installation and Maintenance of Solid State Control
NEMA ICS 7.1:2014 Safety Standards for Construction and Guide for Selection, Installation and Operation of Adjustable Speed Drive Systems
NEMA ICS 10.2 : 2005 INDUSTRIAL CONTROL AND SYSTEMS - PART 2: STATIC AC TRANSFER EQUIPMENT
NEMA 250 : 2014 ENCLOSURES FOR ELECTRICAL EQUIPMENT (1000 VOLTS MAXIMUM)
NEMA ICS 3:2005 (R2010) INDUSTRIAL CONTROL AND SYSTEMS: MEDIUM VOLTAGE CONTROLLERS RATED 2001 TO 7200 VOLTS AC
NEMA ICS 2.1 : 1990
NEMA ICS 3.1 : 2009(R2014) GUIDE FOR THE APPLICATION, HANDLING, STORAGE, INSTALLATION, AND MAINTENANCE OF MEDIUM-VOLTAGE AC CONTACTORS, CONTROLLERS, AND CONTROL CENTERS
IEC 60947-7-1:2009 Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors
NEMA ICS 5:2017 Control Circuit and Pilot Devices
ASME B1.20.1 : 2013(R2018) PIPE THREADS, GENERAL PURPOSE (INCH)
NEMA ICS 9 : 1993 INDUSTRIAL CONTROL AND SYSTEMS: POWER CIRCUIT ACCESSORIES
NFPA 70 : 2017 NATIONAL ELECTRICAL CODE
NEMA ICS 2.2 : 83(R1988) MAINTENANCE OF MOTOR CONTROLLERS AFTER A FAULT CONDITION
NEMA ICS 2.4 : 2003(R2012) INDUSTRIAL CONTROL AND SYSTEMS: NEMA AND IEC DEVICES FOR MOTOR SERVICE - A GUIDE FOR UNDERSTANDING THE DIFFERENCES
NEMA ICS 1 : 2000(R2015) INDUSTRIAL CONTROL AND SYSTEMS: GENERAL REQUIREMENTS
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NEMA ICS 4:2015 Application Guideline for Terminal Blocks
NEMA ICS 10.1 : 2005 INDUSTRIAL CONTROL AND SYSTEMS - PART 1: ELECTROMECHANICAL AC TRANSFER SWITCH EQUIPMENT
NEMA ICS 2:2008 Controllers, Contactors and Overload Relays Rated 600 V
NEMA ICS 2.3 : 1995(R2008) INDUSTRIAL CONTROL AND SYSTEMS: INSTRUCTIONS FOR THE HANDLING, INSTALLATION, OPERATION AND MAINTENANCE OF MOTOR CONTROL CENTERS
NEMA ICS 2-1996, Part 8 (R2004, R2009) INDUSTRIAL CONTROL AND SYSTEMS CONTROLLERS, CONTACTORS, AND OVERLOAD RELAYS RATED NOT MORE THAN 2000 VOLTS AC OR 750 VOLTS DC- PART 8: DISCONNECT DEVICES FOR USE IN INDUSTRIAL CONTROL EQUIPMENT

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