Drill Hole(S) To Accept Conduit - enphase AC Combiner Box Installation Manual

4. Drill Hole(s) to Accept Conduit

WARNING: Do not drill conduit holes on the top of the box or at any location that allows moisture
ingress. This voids the warranty for the combiner box and the Envoy-S.
WARNING: Observe bend radius requirements when routing wires.
NOTE: The label template has three holes, but most applications require only two.
a. A label on the outside of the combiner box indicates the best location to make a hole or holes to
accept conduit fittings. Locate this label.
BEST PRACTICES: Use a stepped drill bit for making the conduit holes. Using a hole saw may
crack the plastic housing. As an alternative, use a sharp chassis punch with caution. Drill only at
the label location. Do not drill a hole in any other location on the box.
b. Use the provided label as a template for typical conduit placement. The center of the holes on the
label are marked with a "+".
c. Use a snap punch or other type of center punch to prevent the drill from wandering. Drill a pilot hole
with a smaller drill before using a step drill bit.
d. Remove the label after drilling.
e. Use only UL listed rain-tight or wet location hubs for wire entry into the enclosure.
13 © 2016 Enphase Energy Inc.
AC Combiner Box Installation
141-00030 Rev 02