Type Designation

	Type 1	Type 3/3R	Type 4	Type 4X	Type 12/13
Application	Commercial Junction Box Switch Box Pull Box Service & Utility Box	Commercial Weather Proof Meter Cabinet Utility Box	Industrial/Watertight Electrical Hydraulic or Pneumatic Controls Junction/Terminal Wiring Enclosures Operator Interface/Consoles	Industrial/Watertight Electrical Hydraulic or Pneumatic Controls Junction/Terminal Wiring Enclosures Operator Interface/Consoles with Corrosion Resistant Properties	Industrial Oil & Dust Tight Electrical Hydraulic or Pneumatic Controls Junction/Terminal Wiring Enclosures Operator Interface/Consoles
Hammond Product Series	N1J N1A CSKO CS CHKO 1416 1439 1420	EJ 1414N4 EN4SD	EJ 1414N4 EN4SD 1418N4 1422N4	EJ...SS 1414N4SS 304/316 EN4SD...SS 304/316 1418N4SS 304/316 1422N4SS 304 PJ PHW PW PB	EJ 1414 EN4SD 1418 1422 1436 1438 2UD 2UHD Series 2000 Consoles IME
National Electrical Manufacturers Association (NEMA Standard 250)	Enclosures constructed for indoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment to provide a degree of protection against falling dirt.	Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with enclosed equipment to provide a degree of protection against falling dirt, rain,sleet, snow and windblown dust and that will be undamaged by the external formation of ice on the enclosure.	Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment: to provide a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hose directed water, and hose-directed water; and that will be undamaged by the external formation of ice on the enclosure.	Enclosures constructed for either indoor or outdoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt, rain, sleet, snow, windblown dust, splashing water, hose-directed water, and corrosion; and that will be undamaged by the external formation of ice on the enclosure.	Enclosures constructed (without knockouts) for indoor use to provide a degree of protection to personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt; against circulating dust, lint and fiber flyings; and against dripping and light splashing of liquids.
Underwriters Laboratories Inc. (UL50 and UL508A)	Indoor use primarily to provide a degree of protection against limited amount of falling dirt.	Outdoor use primarily to provide a degree of protection against rain, sleet, windblown dust, and damage from external ice formation.	Indoor or outdoor use primarily to provide a degree of protection against windblown dust, and rain, splashing water, hose-directed water;and damage from external ice formation.	Indoor or outdoor use primarily to provide a degree of protection against corrosion, windblown dust and rain, splashing water, hose-directed water; and damage from external ice formation.	Indoor use primarily to provide a degree of protection against circulating dust, falling dirt, and dripping non-corrosive liquids.
Canadian Standards Association (Standard C22.2, Nos. 14, 40 and 94)	General purpose enclosure in ordinary locations.	An enclosure for either indoor or outdoor use, constructed so as to provide a degree of protection against rain, snow, and windblown dust; undamaged by the external formation of ice on the enclosure.	An enclosure for either indoor or outdoor use, constructed so as to provide a degree of protection against rain, snow, windblown dust, splashing and hose-directed water; undamaged by the external formation of ice on the enclosure.	An enclosure for either indoor or outdoor use, constructed so as to provide a degree of protection against rain, snow, windblown dust, splashing and hose-directed water; undamaged by the external formation of ice on the enclosure; resists corrosion.	An enclosure for indoor use, constructed so as to provide a degree of protection against circulating and settling dust and lint, fibre flyings; dripping and light splashing of non-corrosive liquids; not provided with knockouts.