Originally Posted By: jpeck
This post was automatically imported from our archived forum.
240.33 DOES NOT allow the breakers to be installed with ‘on’ being up.
240.33 is referring to the enclosure being horizontal, not the breakers. In fact, 240.33 includes this restriction "where the circuit breaker is installed in accordance with 240.81".
Circuit breakers shall clearly indicate whether they are in the open ?off? or closed ?on? position.
Where circuit breaker handles are operated vertically rather than rotationally or horizontally, the ?up? position of the handle shall be the ?on? position.
Thus, the ONLY enclosures allowed to be installed in the horizontal position are those enclosures listed and labeled for use with the panelboard section installed vertically in the horizontal enclosure. 240.33 is a very restrictive option.