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Installation of the heatsink portion
outside the enclosure for use
7.4 Installation of the heatsink portion outside the enclosure
for use
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.
7.4.1 Protrusion of heatsink
(1) Panel cutting
Cut the panel of the enclosure according to the inverter capacity.
• FR-A721-5.5K to 55K, FR-A741-5.5K to 55K
Unit: mm
H1
H3
H2
H
W1
W
4-C screw
Inverter model W W1 H H1 H2 H3 C
FR-A721-5.5K, 7.5K
FR-A741-5.5K, 7.5K
240 190 454 434 12 8 M8
FR-A721-11K, 15K
FR-A741-11K, 15K
290 220 575 548 17 10 M8
FR-A721-18.5K, 22K 376 290 575 546 17 12 M10
FR-A741-18.5K, 22K 346 260 575 546 17 12 M10
FR-A721-30K
FR-A741-30K
436 350 675 646 17 12 M10
FR-A721-37K, 45K
FR-A741-37K, 45K
456 370 670 641 17 12 M12
FR-A721-55K
FR-A741-55K
586 480 870 841 17 12 M12