Dc Cable Connection - CanadianSolar CSI-75K-T40001-E Quick Installation Manual

Recommend
L1 L2 L3 N
4.5.3 Closing the Wiring Compartment
Step 1: Reinstall the protection plate and push the four plastic rivets into the holes at the chassis.
Step 2: Close the wiring compartment and tighten the four screws on its front cover with screwdriver T30.
Notice：The gap between AC cable and waterproof gland must be blocked with fireproof mud to prevent water or moisture.

4.6 DC Cable Connection

Electric shock!
The PV array will generate lethal high voltage once exposed to sunlight.
DANGER Before performing electrical operations, ensure that all cables are uncharged.
Do not turn on the AC circuit breaker before the inverter is electrically connected.
Make sure the PV array is well insulated to ground before connecting it to the inverter.
During the installation of PV strings and the solar inverter, the positive or negative terminals of PV
CAUTION
strings may be short-sircuited to ground if the power cable is not proprely installed or routed. In
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For L1/L2/L3/N and internal PE cable.
L1 L2 L3 N
FIG 4-14 Recommended AC cable connection position
FIG4-15 Close the wiring compartment
Gland for AC output cable
M12
20-30
N.m
For cable gland
M72
9-10
N.m
M6
4.5
N.m
T30
Gland for internal ground
cable
Seal ring-2
Seal ring-5
For cable
For cable
OD=18-25mm
OD=50-57mm
Seal ring-4
For cable
OD=43-50mm
Seal ring-1
Seal ring-3
For cable
For cable
OD=12-18mm
OD=36-43mm
Seal ring-2
For cable
OD=30-36mm
Seal ring-1
Press nut
For cable
OD=26-30mm
Press nut
End blocker
End blocker