240.24 Location in or on Premises.
(A) Accessibility. Switches containing fuses and circuit breakers
shall be readily accessible and installed so that the center of
the grip of the operating handle of the switch or circuit
breaker, when in its highest position, is not more than 2.0 m
(6 ft 7 in.) above the floor or working platform, unless one of
the following applies:
(1) For busways, as provided in 368.17(C).
(2) For supplementary overcurrent protection, as described
in 240.10.
(3) For overcurrent devices, as described in 225.40 and
230.92.
(4) For overcurrent devices adjacent to utilization equipment
that they supply, access shall be permitted to be by portable
means.
Exception: The use of a tool shall be permitted to access overcurrent
devices located within listed industrial control panels or similar enclosures.