Delta M100 210 Operation And Installation Manual page 37

- Reverse pole connection is prohibited that will damage the inverter.
- Only accept under 1100V maximum PV strings to the inverter
Two PV combiner box input
After inserting conductor,
tighten by 16 N • m torque
❶
DC-
DC+
❶ ❷
DC busbar
Figure 3-19: wiring of DC busbar (for 2 PV combiner box)
(1) Pass two pairs of PV cables (Total 4 DC cables) through M40 and M25 glands
separately, the inner rubber of each cable gland must fit with the diameter of
the cable.
(2) Follow the polarity as shown in Figure 3-19 to insert PV+ or PV- cable to
each terminal
(3) Use M10 spanner to tighten nuts with 16 N-m torque
(4) Fasten all M40 and M25 glands for sealing
- After DC cabling, please check if there are gap inside
the cable gland, if yes, suggest to use silicon or duct
seal to fill the gap.
- When using plastic or HDPE conduit cabling, please
use silicon or fire mod to fill the gap and conduit.
WARNING !
❷
CAUTION !
37
Installation
❶
❷
DC-
DC-
❷
DC+
❶
DC+