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5
Electrical Connections
NOTICE
Connect cables in accordance with the installation laws and regulations of the country or region
where the project is located.
5.1
Selecting a Connection Method
Cables can be connected to the maintenance compartment in a common way or through a pipe.
Select a connection method based on site requirements.
NOTE
The following describes how to route cables through the AC OUTPUT waterproof connector in a
common way and through a pipe. Processing of other waterproof connectors is similar.
Following are the reference torque values for the waterproof connector and pipe. Observe the
requirements of the specific manufacturer, if any.
− AC OUTPUT and COM ports: 7.5 N· m (plastic) or 10 N· m (metal)
− RESERVE port: 3.75 N· m (plastic) or 6.25 N· m (metal)
Common Connection
If you choose the common connection,
prepare appropriate cables by yourself.
1. Remove the locking cap and plug from
the waterproof connector.
2. Route the cable through the locking cap
and then the waterproof connector.
3. Install the cable.
4. Tighten the locking cap.
5. Check that the cables are connected
correctly and securely. Then seal the
waterproof connectors and cable holes.
6. Clear foreign matter from the
maintenance compartment.
Connection Through a Pipe
If you choose the connection through pipes, prepare appropriate cables and pipes by yourself.
NOTE
The pipe specifications should comply with the waterproof connector specifications. For example,
for a 2-inch waterproof connector, prepare a 2-inch pipe. The pipe appearance shown in the
following figure is for reference only. The actual pipe prevails.
Nut
Fitting
Pipe
Conduit
Diameters of the bottom cable holes
5
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