The Type 3 Electrical Cabinet is a step up from the Type 1 or Type 2. Although the Type 2 allows some protection from water, it does not provide enough for it to be classed as an outdoor electrical cabinet. The Type 3 electrical cabinet is an indoor/outdoor electrical cabinet that offers the same basic level of protection as the Type 1 or Type 2 (Keeps personnel from coming into contact with components), but also protects from dust, wind blown dust, rain sleet and snow.
The Type 3 electrical cabinet has a rubber gasket that seals the cabinet, protecting it’s components from more environmental elements. Like all the rated electrical cabinets, they can be built to specific sizes and detentions. A custom metal fabrication company can build you Type 3 electrical to your exact needs and provide many options of components and finishes.
The Type 3R is the same electrical cabinet, but has louvers for ventilation.
Type 3
NEMA
Indoor and outdoor use provides a protected measure to prevent personal contact with dangerous components. It also protects internal components from external materials such as dirt and wind-driven dust. It also protects internal components against damaging effects of invasive materials such as dripping or splashing water or rain, snow, or hail. The external enclosure will be protected from damage by ice formation.
UL
Indoor and outdoor use offers protection against personal contact with internal components and a measure to protect internal components from access by external materials such as dirt. It also protects internal components from damage by invasion by external sources of dripping or incidental splashing of non-corrosive liquid materials. The external enclosure will be protected from damage by ice formation.