ABB ACS 400 User Manual page 16

Units with IP 54/NEMA Type 12 & NEMA Type 4 Enclosures
The IP 54/NEMA Type 12 & 4 protection class has a different outer plastic cover. The IP 54/NEMA
Type 12 & 4 enclosures use the same internal plastic shell as the IP21 enclosure, but an internal
fan is added to improve cooling. This structure increases the dimensions compared to the IP 21
enclosure, but does not require a de-rating.
Dimensions
Reference (in / mm)
W
W1
H
H1
D
Mass (lb / kg)
Figure 3 IP 54/NEMA Type 12 & 4 enclosures
A complete set of dimensional drawings for the NEMA Type 12 & 4 ACS 400 drives is located in
"Appendix D" on page 167.
ACS 400 User's Manual
Frame Size, IP54 / NEMA 12
R1 R2
8.43" / 214 8.43" / 214
3.86" / 98 3.86" / 98
17.72" / 450 21.65" / 550
12.52" / 318 16.42" / 417
9.43" / 240 9.96" / 253
12.8 / 5.8 19.8 / 9
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R3 R4
10.09" / 256 10.09" / 256
6.30" / 160 6.30" / 160
25.27" / 642 29.21" / 742
20.79" / 528 24.38" / 619
11.00" / 280 12.28" / 312
40.8 / 18.5 59.5 / 27
5