10-5. Wiring connections in the control box
Connections must be made securely and without tension on the terminals.
- Improperly connected cables may break, overheat, or cause smoke or fire.
10-5-1. Threading power cable through the knockout hole
・Open the front panel when performing wiring work.
・Punch out the knockout holes at the bottom of the front panel or base with a hammer. Use the appropriate knockout
hole according to the size of the power cable, referring to the table below.
(1) When routing the wiring through the front of the unit
Power cable size (mm
2, 3.5, 5.5
21, 26, 33
84, 67, 53
The length of the section after the cable access hole must be at least 1100 mm (43 in).
Ground wire that connects Main Box and Inverter Box
Knockout hole to be used
Knockout hole 2
Knockout hole 4
Knockout hole 3
Knockout hole 5
(2) When routing the wiring through the bottom of the unit
Fill the gap.