Heatsink Protrusion Attachment Procedure; When Using A Heatsink Protrusion Attachment (Fr-A7Cn); Protrusion Of Heatsink Of The Fr-A740-160K Or More - Mitsubishi Electric FR-A700 Series Instruction Manual

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6.4 Heatsink protrusion attachment procedure

When encasing the inverter in an enclosure, the generated heat amount in an enclosure can be greatly reduced by
installing the heatsink portion of the inverter outside the enclosure. When installing the inverter in a compact
enclosure, etc., this installation method is recommended.
6.4.1

When using a heatsink protrusion attachment (FR-A7CN)

For the FR-A720-1.5K to 55K, FR-A740-0.4K to 132K, a heatsink can be protruded outside the enclosure using a
heatsink protrusion attachment (FR-A7CN). (For the 160K or more, attachment is not necessary when the heatsink
is to be protruded.)
For a panel cut dimension drawing and an installation procedure of the heatsink protrusion attachment (FR-A7CN)
to the inverter, refer to a manual of "heatsink protrusion attachment".
6.4.2

Protrusion of heatsink of the FR-A740-160K or more

(1) Panel cutting
Cut the panel of the enclosure according to the inverter capacity.
• FR-A740-160K, 185K
200
Hole
• FR-A740-315K, 355K
315
6-M10 screw
484
200
6-M10 screw
771
315
Hole
Heatsink protrusion attachment procedure
• FR-A740-220K, 250K, 280K
662
300
Hole
• FR-A740-400K, 450K, 500K
976
300
300
Hole
6-M10 screw
300
8-M10 screw
300
175
6

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