Type 1
General purpose enclosure; protects against accidental contact with live parts.
Type 2
Drip proof enclosure same as Type 1; indoor use to provide a degree of protection against dripping and light splashing of noncorrosive liquids and falling dirt.
Type 3
Weatherproof enclosure; indoor or outdoor use to provide a degree of protection against rain, snow and blown dust; undamaged by the external formation of ice on the enclosure.
Type 3R
Weather proof enclosure; indoor or outdoor use to provide a degree of protection against rain or snow; undamaged by the external formation of ice on the enclosure (CSA does not specify sleet resist).
Type 3S
Weather proof enclosure; indoor or outdoor use to provide a degree of protection against rain or snow; undamaged by the external formation of ice on the enclosure surface (CSA does not specify sleet proof).
Type 4
Watertight enclosure; indoor or outdoor use to provide a degree of protection against rain, snow, blown dust, splashing and hose directed water; undamaged by the external formation of ice on the enclosure.
Type 4X
Watertight enclosure; indoor or outdoor use to provide a degree of protection against rain, snow, blown dust, splashing and hose directed water; undamaged by the external formation of ice on the enclosure; resists corrosion.
Type 5
Indoor use, so constructed that dust, readily ignitable fibers or combustible flyings cannot enter the enclosure.
Type 6
No CSA equivalent.
Type 6P
No CSA equivalent.
Type 7
Similar to NEMA designation; refer to Canadian Electric Code C22.1 Sec. 18 (C22.2 No. 30).
Type 8
Similar to NEMA designation; refer to Canadian Electric Code C22.1 Sec. 18 (C22.2 No. 30).
Type 9
Similar to NEMA designation dust tight (hazardous dust); refer to Canadian Electric Code C22.2 No. 25.
Type 10
No CSA equivalent specified for industrial control applications (See C22.5 for use of electricity in mines).
Type 11
No CSA equivalent; similar to Type 4.
Type 12
Indoor use to provide a degree of protection against circulating dust, lint, fibers, dripping and light splashes of non-corrosive liquids.
Type 12K
No CSA equivalent.
Type 13
Indoor use to provide a degree of protection against circulating dust, lint, fibers, seepage and spraying of non-corrosive liquids including oils and coolants.
