600V/1000V DC Combiner Installation and Operating Instructions – 36-String Disconnect Models
950-002305-000 Rev A
27
Chapter 3: Installation Procedure
Mounting the Disconnect Combiner
Your mounting area may have been prepared with studs or you have the option
to drill into the area and use lags to install the wall- or roof-mount enclosure.
When installing carbon steel or stainless steel enclosures, predrilled holes are
located in the four corners of the bottom skin. The four predrilled and plugged
holes are recommended for use when bolting the enclosure to a wall or roof.
Remove the plugs to use these holes. You may drill additional holes in the back
panel as needed by your mounting area. On fiberglass enclosures, the mounting
holes are on mounting flanges external to the enclosure.
Secure the appropriate screws or connectors to attach the enclosure to the
mounting surface.
Upon completion of the enclosure mounting and the conduit connections, the
enclosure must comply with the tests specified in the applicable sections of the
Enclosure Types Table of UL 50, “Standard for Enclosures for Electrical
Equipment.”
Preparing the Cutouts
Refer to the project drawings to identify specific locations of incoming wiring
and to determine appropriate cutouts in the enclosure.
The preferred point of entry for the cables is through cutouts, usually in the
bottom or the side.
CAUTION
CAUTION
As the installer, you are responsible for determining safe areas in the enclosure
for cutouts.
ATTENTION
Comme
installateur,
vous
êtes
responsable
de
déterminer
des
secteurs
sûrs
dans
la
clôture
pour
des
coupes
‐
circuit.
Use only water-tight conduit fittings to connect the conduit to the cutouts. All
hubs must comply with the requirements of a NEMA Type 3R/4 enclosure, as
specified in UL 514B, “Standard for Safety Conduit, Tubing and Cable Fittings.”
Be sure enough wire-bend space exists for the desired output wire gauge when
choosing a conduit location.
