Equipment disconnecting means
shall have ratings sufficient for the maximum circuit current, available fault current
, and voltage
that is available at the terminals. Equipment disconnecting means
shall simultaneously disconnect all current-carrying conductors that are not solidly grounded
to the circuit to which it is connected. Equipment disconnecting means
shall be externally operable
without exposing the operator to contact with energized
parts and shall indicate whether in the open (off) or closed (on) position. Where not within sight or not within 3 m (10 ft) of the equipment
, the disconnecting means
or its remote operating device
or the enclosure
providing access to the disconnecting means
shall be capable of being locked in accordance with 110.25
. Equipment disconnecting means
, where used, shall be one of the types in 690.13(E)
(1) through (E)(5).
Equipment disconnecting means, other than those complying with 690.33, shall be marked in accordance with the warning in 690.13(B) if the line and load terminals can be energized in the open position.
Informational Note: A common installation practice is to terminate PV source-side dc conductors in the same manner that utility source-side ac conductors are generally connected on the line side of a disconnecting means. This practice is more likely to de-energize load-side terminals, blades, and fuses when the disconnect is in the open position and no energized sources are connected to the load side of the disconnect.