Mitsubishi Electric 800 Series Instruction Manual page 39

Main circuit terminals
• Punching out the knockout holes
(1) Punch out the knockout holes by firmly tapping it with a tool, such as a hammer. Remove any sharp edges and burrs
from knockout holes of the wiring cover.
For the FR-A860-00090 or lower using a provided brake resistor, punch out the knockout hole on the wiring cover for wir-
ing the provided brake resistor. (For how to connect the provided brake resistor, refer to
FR-A860-00090 or lower
Knockout hole for wiring of
the provided brake resistor
(2) Conduit hubs must always be used to connect conduit to the enclosure knockout. The hub shall be assembled to the
conduit before it is installed in the conduit box knockout opening.
NOTE
• Be careful not to injure yourself with the sharp edges and burrs of the knockout holes.
• To avoid wire offcuts and other foreign matter to enter the inverter, conduits must be installed to the all knockout holes.
• Wiring cover hole diameters
Inverter capacity
FR-A860-00027 to 00090
FR-A860-00170, 00320
FR-A860-00450
WARNING
 Do not wire without using conduits. Otherwise, the cable sheathes may be scratched by the wiring
cover edges, resulting in a short circuit or ground fault.
38
INSTALLATION AND WIRING
Hole diameter Number of
(mm) holes
35
3
44
3
63
3
FR-A860-00170 to 00450
Applicable conduit size
(Nominal diameter)
1
1•1/4
2
page 39.)