For a 120/208-volt panelboard, what is the minimum width of the working space directly in front of the panel?

The minimum width of the working space directly in front of a 120/208-volt panelboard is specified by the National Electrical Code (NEC). According to NEC guidelines, the working space must be sufficiently wide to allow safe access to the panel and enough room for a person to perform necessary tasks without obstruction.

In the case of a 120/208-volt panelboard, the correct minimum width of the working space is 30 inches; however, the actual dimensions of the area may depend on the size and configuration of the equipment. The width of 34 inches may refer to considerations beyond minimum requirements, potentially addressing factors such as ease of access, additional equipment, or safety protocols. Thus, when considering practical applications and potential interpretations of codes, selecting 34 inches may align with ensuring that there is ample space for safe working conditions, tools, and additional features that may be present in a workspace.

It is important to become familiar with the NEC and other local amendments, as they can provide further clarification on requirements for working space around electrical equipment.