Yaskawa Solectria Solar
DOCR-071069
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Conduit Connections
Follow these instructions and best practices when securing conduits to the ACC1500-
500 AC Combiner.
1. Use UL514B certified water-tight conduit fittings and proper installation methods
to provide a water-tight connection that will maintain the Type 3R rating of the
enclosure.
2. Use an appropriately-rated sealant and seal the conduits fully to prevent the
exchange of air between the conduit and the enclosure. Sealing the conduit will
help prevent condensation in the enclosure.
STEP 3: AC Output Circuit Connections
See NEC Articles 310 and 690 for proper conductor sizing. The phase lugs are shown in
Figure 4.3 and their specifications in Table 4.1.
Phase Lugs (one per phase)
Conduits connected to an outdoor enclosure can introduce water vapor into
the enclosure and lead to the formation of condensation inside. Failure to
follow these guidelines can result in water intrusion into the unit through the
conduit connections and may void the warranty.
Do not attempt to make connections to the ACC1500-500 AC Combiner if not
qualified for electrical work.
