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4.4. Mechanical Dimensions – IP66 (Nema 4X) Enclosed Units
I
J
Drive
A
Frame
mm
in
mm
Size
1
232.0
9.13
207.0
2
257.0
10.12
220.0
3
310.0
12.2
276.5
The size 3 product has 4 symmetrical mounting points
NOTE
Maximum Control Terminal Torque Settings of 0.5 Nm (4.5 lb-in)
Maximum Power Terminal Torque Settings of 1 Nm (9 lb-in)
4.5. Guidelines for Mounting Enclosed Units
Before mounting the drive, ensure that the chosen location meets the
environmental condition requirements for the drive shown in section 12.1
The drive must be mounted vertically, on a suitable flat surface
The minimum mounting clearances as shown in the table below must be
observed
The mounting site and chosen mountings should be sufficient to support
the weight of the drives
The Enclosed ACS255s can be installed side-by-side with their heatsink
flanges touching. This gives adequate ventilation space between drives.
If the ACS255 is to be installed above another drive or any other heat-
producing device, the minimum vertical spacing (X) is 150mm (5.9 inches)
above and below.
H
G
B
D
in
mm
in
mm
8.15
189.0
7.44 25.0 0.98
8.67
200.0
7.87 28.5 1.12
10.89
251.5
9.90 33.4 1.31
D
B
E
E
F
G
in
mm
in
mm
179.0
7.05
161.0
186.5
7.34
188.0
252
9.92
210.5
F
H
I
in
mm
in
mm
in
6.34
148.5
5.85
4.0
0.16
7.40
176.0
6.93
4.2
0.17
8.29
197.5
7.78
4.2
0.17
X
X
17
A
J
Weight
mm
in
kg
Ib
0.31 2.95 6.50
8.0
0.33 4.20 9.26
8.5
7.7
17
8.5
0.33
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