Wiring - Quick Mount PV QBox Installation Manual

V.

Wiring

To maintain the QBox Type 3R rating for wet locations, all attached
conduit hubs and cord grips must be raintight or suitable for wet
locations and be listed to the Standard for Conduit, Tubing and Cable
Fittings, UL 514B. The conduit hubs and cord grips can be installed
along any of the sidewalls of the QBox. The drill starter along the
outside of the QBox will ensure that the connectors are centered
vertically on the unit. The QBox does not come with conduit hubs
or cord grips due to site-specific needs. It is the responsibility of the
installer to specify the proper conduit or cord grip products for the
installation. Follow the installation instructions from the conduit hub
and cord grip manufacturer and follow all National Electrical Code,
ASNI/NFPA 70 wiring methods and guidelines.
The QBox is nonconductive and therefore does not need to be grounded.
However, that also means the box cannot be used to maintain an
electrical bond between fittings. Ensure all proper jumpers or other
bonding mechanisms are in place per NEC.
The DC input and DC output circuits are isolated from the enclosure
and that system grounding, if required by section 250 of the National
Electrical Code, ANSI/NFPA 70, is the responsibility of the installer.
The Photovoltaic System Grounding shall be installed per the
requirements of Sections 690.41 through 690.47 of the National
Electrical Code, ANSI/NFPA 70 and is the responsibility of the installer.
The ground terminal for bonding is not provided. Grounding will need
to be provided as part of the final installation and compliant with
the National Electric Code and local electrical codes. When installing
a conduit hub to the QBox that is intended for connection to a rigid
conduit system, install the hub to the conduit before the hub is
connected to the enclosure.
To maintain the QBox's 3R rating, the enclosure's top hinged cover
must be completely closed to the enclosure's base. In addition, all
wires should be pushed down and away from the cover so it closes
freely without resistance.
BI 7.2.3-44
Nov-2017, Rev 2
9