MNDC Installation Instructions
Rev: New Page 2 of 7
Dimensioned drawing showing conduit locations and sizes
Wire type
Due to the small size of this box and limited wire bending room, it is required that the super
flexible type battery cable be utilized. Cobra Cable X-Flex is one approved type of cable.
Welding cable although not listed for use in residential wiring will also meet the flexibility
requirement. Wiring for the din rail mount breakers such as 6AWG for PV circuits may be the
stiff THHN or similar type of wire.
Top view showing three 1” knockouts. The left
two knockouts fit charge controllers such as the
Classic, MX60, C-40 and Tristar controllers
The left side of the
MNDC chassis has
three 2” knockouts
and two ½”
knockouts. The 2”
knockouts are
intended for inverter
DC cables. If
installing to a Trace
or Xantrex SW
inverter, use a 2”
offset nipple to
attach to the SWCB
conduit box.
If routing cables
directly through the
hole with no
conduit, make sure a
plastic grommet is
installed to avoid
chafing.
The bottom surface is normally where the
battery cables will enter. The 1” knockout can be
increased in size to accommodate a second 2”
conduit opening if required. This is one way to
hook up to a Trace or Xantrex DR Series conduit
box.
