There are standards used to categorize electrical enclosures. In the USA, the two bodies that publishes these classes of enclosures are NEMA and UL.
CT Cabinets – About, Types, Ratings
About: Electric meters, depending on the size of electricity (amperage) being measured, can be either transformer rated or self driven. For amperage lower than 200 amperes, self driven meters are generally used where the electricity being consumed passes through the meter. For higher amperages, current transformers or CTs are used coupled with a meter to measure […]
Type 3 Electrical Cabinet NEMA vs UL
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 […]